# ========
# captured on: Tue Sep 22 15:19:25 2015
# hostname : aphost2
# os release : 2.6.32-358.23.2.el6.x86_64
# perf version : 2.6.32-358.23.2.el6.x86_64.debug
# arch : x86_64
# nrcpus online : 16
# nrcpus avail : 16
# cpudesc : Intel(R) Xeon(R) CPU E5-4650 0 @ 2.70GHz
# cpuid : GenuineIntel,6,45,7
# total memory : 264414484 kB
# cmdline : /usr/bin/perf record -g -p 108443 
# event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 1, precise_ip = 0, id = { 16 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# ========
#
# Samples: 75K of event 'cycles'
# Event count (approx.): 54081676357
#
# Overhead   Command                  Shared Object                                         Symbol
# ........  ........  .............................  .............................................
#
     6.16%  postgres  libc-2.12.so                   [.] memcpy                                   
            |
            --- memcpy
               |          
               |--95.94%-- networkjoinsel
                --4.06%-- [...]

     4.26%  postgres  [kernel.kallsyms]              [k] _spin_lock                               
            |
            --- _spin_lock
               |          
               |--59.16%-- task_rq_lock
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--39.15%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--0.91%-- cache_alloc_refill
               |          kmem_cache_alloc
               |          __sigqueue_alloc
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.78%-- [...]

     4.18%  postgres  [kernel.kallsyms]              [k] resched_task                             
            |
            --- resched_task
               |          
               |--98.00%-- check_preempt_curr
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.00%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     3.11%  postgres  [kernel.kallsyms]              [k] task_curr                                
            |
            --- task_curr
               |          
               |--99.49%-- complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.51%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     3.03%  postgres  postgres                       [.] slot_deform_tuple                        
            |
            --- slot_deform_tuple

     3.01%  postgres  [kernel.kallsyms]              [k] enqueue_entity                           
            |
            --- enqueue_entity
               |          
               |--99.65%-- enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.35%-- [...]

     2.90%  postgres  [kernel.kallsyms]              [k] try_to_wake_up                           
            |
            --- try_to_wake_up
               |          
               |--99.36%-- wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.64%-- signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     2.80%  postgres  postgres                       [.] shm_mq_inc_bytes_read                    
            |
            --- shm_mq_inc_bytes_read

     2.77%  postgres  postgres                       [.] hash_search_with_hash_value              
            |
            --- hash_search_with_hash_value
               |          
               |--2.84%-- 0x1d4108000000000
                --97.16%-- [...]

     2.36%  postgres  postgres                       [.] do_numeric_accum                         
            |
            --- do_numeric_accum
               |          
               |--95.10%-- 0x0
               |          
               |--0.68%-- slot_getsomeattrs
                --4.23%-- [...]

     2.19%  postgres  [kernel.kallsyms]              [k] __send_signal                            
            |
            --- __send_signal
               |          
               |--99.64%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.36%-- [...]

     1.95%  postgres  [kernel.kallsyms]              [k] select_task_rq_fair                      
            |
            --- select_task_rq_fair
               |          
               |--98.77%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.23%-- wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     1.86%  postgres  postgres                       [.] add_abs                                  
            |
            --- add_abs

     1.72%  postgres  [kernel.kallsyms]              [k] _spin_lock_irqsave                       
            |
            --- _spin_lock_irqsave
               |          
               |--99.07%-- lock_task_sighand
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--0.54%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.39%-- [...]

     1.58%  postgres  [kernel.kallsyms]              [k] rb_reserve_next_event                    
            |
            --- rb_reserve_next_event
               |          
               |--96.72%-- ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--34.61%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--34.44%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--29.57%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.61%-- ftrace_raw_event_sched_migrate_task
               |          |          set_task_cpu
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.61%-- ftrace_raw_event_id_softirq
               |          |          |          
               |          |          |--42.85%-- ftrace_raw_event_softirq_entry
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          |          
               |          |          |          |--33.34%-- ExecStoreMinimalTuple
               |          |          |          |          
               |          |          |          |--33.33%-- slot_deform_tuple
               |          |          |          |          
               |          |          |           --33.33%-- do_send_sig_info
               |          |          |                     group_send_sig_info
               |          |          |                     kill_pid_info
               |          |          |                     sys_kill
               |          |          |                     system_call
               |          |          |                     __GI___kill
               |          |          |          
               |          |          |--28.58%-- ftrace_raw_event_softirq_exit
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          do_send_sig_info
               |          |          |          group_send_sig_info
               |          |          |          kill_pid_info
               |          |          |          sys_kill
               |          |          |          system_call
               |          |          |          __GI___kill
               |          |          |          
               |          |           --28.58%-- ftrace_raw_event_softirq_raise
               |          |                     raise_softirq
               |          |                     rcu_check_callbacks
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     do_send_sig_info
               |          |                     group_send_sig_info
               |          |                     kill_pid_info
               |          |                     sys_kill
               |          |                     system_call
               |          |                     __GI___kill
               |           --0.17%-- [...]
               |          
                --3.28%-- trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--38.45%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--33.34%-- ftrace_raw_event_id_sched_stat_template
                          |          ftrace_raw_event_sched_stat_sleep
                          |          enqueue_entity
                          |          enqueue_task_fair
                          |          enqueue_task
                          |          activate_task
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--25.64%-- ftrace_raw_event_id_sched_wakeup_template
                          |          ftrace_raw_event_sched_wakeup
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --2.56%-- ftrace_raw_event_sched_migrate_task
                                     set_task_cpu
                                     try_to_wake_up
                                     wake_up_state
                                     signal_wake_up
                                     complete_signal
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     1.58%  postgres  postgres                       [.] bpchareq                                 
            |
            --- bpchareq

     1.57%  postgres  postgres                       [.] AllocSetAlloc                            
            |
            --- AllocSetAlloc
               |          
               |--20.58%-- networkjoinsel
                --79.42%-- [...]

     1.56%  postgres  postgres                       [.] ExecProject                              
            |
            --- ExecProject

     1.46%  postgres  [kernel.kallsyms]              [k] complete_signal                          
            |
            --- complete_signal
               |          
               |--98.81%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.19%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     1.28%  postgres  [kernel.kallsyms]              [k] signal_wake_up                           
            |
            --- signal_wake_up
               |          
               |--97.29%-- complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.71%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     1.13%  postgres  [kernel.kallsyms]              [k] lock_task_sighand                        
            |
            --- lock_task_sighand
               |          
               |--98.82%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.18%-- group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     1.10%  postgres  [kernel.kallsyms]              [k] enqueue_task                             
            |
            --- enqueue_task
               |          
               |--99.03%-- activate_task
               |          try_to_wake_up
               |          |          
               |          |--99.88%-- wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |           --0.12%-- [...]
               |          
                --0.97%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     1.10%  postgres  postgres                       [.] make_result                              
            |
            --- make_result

     1.04%  postgres  [kernel.kallsyms]              [k] __rb_reserve_next                        
            |
            --- __rb_reserve_next
               |          
               |--96.16%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--34.58%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--33.91%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--29.78%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.93%-- ftrace_raw_event_id_softirq
               |          |          |          
               |          |          |--57.14%-- ftrace_raw_event_softirq_exit
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          |          
               |          |          |          |--50.00%-- do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |          |--25.00%-- shm_mq_inc_bytes_read
               |          |          |          |          
               |          |          |           --25.00%-- hashbpchar
               |          |          |          
               |          |          |--28.58%-- ftrace_raw_event_softirq_entry
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          do_send_sig_info
               |          |          |          group_send_sig_info
               |          |          |          kill_pid_info
               |          |          |          sys_kill
               |          |          |          system_call
               |          |          |          __GI___kill
               |          |          |          
               |          |           --14.29%-- ftrace_raw_event_softirq_raise
               |          |                     raise_softirq
               |          |                     rcu_check_callbacks
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     do_send_sig_info
               |          |                     group_send_sig_info
               |          |                     kill_pid_info
               |          |                     sys_kill
               |          |                     system_call
               |          |                     __GI___kill
               |          |          
               |          |--0.66%-- ftrace_raw_event_sched_migrate_task
               |          |          set_task_cpu
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |           --0.13%-- [...]
               |          
                --3.84%-- ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--36.67%-- ftrace_raw_event_id_sched_stat_template
                          |          ftrace_raw_event_sched_stat_sleep
                          |          enqueue_entity
                          |          enqueue_task_fair
                          |          enqueue_task
                          |          activate_task
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--33.33%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--23.33%-- ftrace_raw_event_id_sched_wakeup_template
                          |          ftrace_raw_event_sched_wakeup
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --6.67%-- ftrace_raw_event_sched_stat_runtime
                                     update_curr
                                     task_tick_fair
                                     scheduler_tick
                                     update_process_times
                                     tick_sched_timer
                                     __run_hrtimer
                                     hrtimer_interrupt
                                     smp_apic_timer_interrupt
                                     apic_timer_interrupt
                                     |          
                                     |--50.00%-- add_abs
                                     |          
                                      --50.00%-- shm_mq_receive_bytes

     1.03%  postgres  [kernel.kallsyms]              [k] kmem_cache_alloc                         
            |
            --- kmem_cache_alloc
               |          
               |--98.84%-- __sigqueue_alloc
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.16%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     1.03%  postgres  [kernel.kallsyms].vsyscall_fn  [.] vread_tsc                                
            |
            --- vread_tsc
               |          
               |--89.81%-- 0x7fff59744814
               |          0x7fff597448bc
               |          __gettimeofday
               |          
                --10.19%-- 0x7fff597448bc
                          __gettimeofday

     1.03%  postgres  postgres                       [.] hash_any                                 
            |
            --- hash_any

     1.02%  postgres  postgres                       [.] advance_aggregates                       
            |
            --- advance_aggregates

     0.98%  postgres  postgres                       [.] advance_transition_function              
            |
            --- advance_transition_function

     0.94%  postgres  [kernel.kallsyms]              [k] trace_buffer_lock_reserve                
            |
            --- trace_buffer_lock_reserve
               |          
               |--93.62%-- trace_current_buffer_lock_reserve
               |          |          
               |          |--49.24%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--42.88%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--7.58%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |           --0.30%-- [...]
               |          
               |--3.12%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.41%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--0.57%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.28%-- [...]

     0.90%  postgres  [kernel.kallsyms]              [k] ftrace_trace_userstack                   
            |
            --- ftrace_trace_userstack
               |          
               |--85.86%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--47.14%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--31.54%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--20.45%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.69%-- ftrace_raw_event_sched_migrate_task
               |          |          set_task_cpu
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |           --0.17%-- [...]
               |          
               |--11.90%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--1.64%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.60%-- ftrace_raw_event_id_sched_stat_template
                          ftrace_raw_event_sched_stat_sleep
                          enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.88%  postgres  [kernel.kallsyms]              [k] ring_buffer_lock_reserve                 
            |
            --- ring_buffer_lock_reserve
               |          
               |--81.17%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--41.56%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--30.05%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--27.84%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |           --0.56%-- [...]
               |          
                --18.83%-- trace_current_buffer_lock_reserve
                          |          
                          |--68.00%-- ftrace_raw_event_id_sched_wakeup_template
                          |          ftrace_raw_event_sched_wakeup
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--22.40%-- ftrace_raw_event_id_sched_stat_template
                          |          ftrace_raw_event_sched_stat_sleep
                          |          enqueue_entity
                          |          enqueue_task_fair
                          |          enqueue_task
                          |          activate_task
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --9.60%-- ftrace_raw_event_signal_generate
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.88%  postgres  postgres                       [.] ExecAgg                                  
            |
            --- ExecAgg

     0.87%  postgres  postgres                       [.] ExecStoreMinimalTuple                    
            |
            --- ExecStoreMinimalTuple

     0.87%  postgres  [kernel.kallsyms]              [k] __audit_syscall_exit                     
            |
            --- __audit_syscall_exit
               |          
               |--78.53%-- sysret_audit
               |          __GI___kill
               |          
                --21.47%-- __GI___kill

     0.86%  postgres  postgres                       [.] slot_getattr                             
            |
            --- slot_getattr

     0.86%  postgres  [kernel.kallsyms]              [k] trace_current_buffer_lock_reserve        
            |
            --- trace_current_buffer_lock_reserve
               |          
               |--84.42%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--9.66%-- ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.18%-- ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--1.87%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--1.25%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.62%-- [...]

     0.85%  postgres  [kernel.kallsyms]              [k] __sigqueue_alloc                         
            |
            --- __sigqueue_alloc
               |          
               |--97.97%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.03%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.84%  postgres  postgres                       [.] SetLatch                                 
            |
            --- SetLatch

     0.84%  postgres  [vdso]                         [.] 0x00007fff597448b2                       
            |          
            |--9.87%-- 0x7fff5974481f
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--8.77%-- 0x7fff5974482a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--8.61%-- 0x7fff597448d4
            |          __gettimeofday
            |          
            |--5.90%-- 0x7fff59744814
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.83%-- 0x7fff59744826
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.83%-- 0x7fff59744830
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.67%-- 0x7fff597448a4
            |          __gettimeofday
            |          
            |--3.35%-- 0x7fff5974486a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.03%-- 0x7fff597448cd
            |          __gettimeofday
            |          
            |--2.87%-- 0x7fff597447d1
            |          __gettimeofday
            |          
            |--2.71%-- 0x7fff597448d8
            |          __gettimeofday
            |          
            |--2.55%-- 0x7fff597448df
            |          __gettimeofday
            |          
            |--2.55%-- 0x7fff597447d6
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.55%-- 0x7fff597448c0
            |          __gettimeofday
            |          
            |--2.39%-- 0x7fff597448e9
            |          __gettimeofday
            |          
            |--2.39%-- 0x7fff597447d7
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.23%-- 0x7fff5974489b
            |          __gettimeofday
            |          
            |--2.23%-- 0x7fff59744806
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.23%-- 0x7fff597448db
            |          __gettimeofday
            |          
            |--1.91%-- 0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.75%-- 0x7fff597447fc
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.75%-- 0x7fff5974483d
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.75%-- 0x7fff59744803
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.60%-- 0x7fff59744890
            |          
            |--1.60%-- 0x7fff59744872
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.44%-- 0x7fff597447d0
            |          __gettimeofday
            |          
            |--1.28%-- 0x7fff597448b2
            |          __gettimeofday
            |          
            |--1.28%-- 0x7fff597448b0
            |          __gettimeofday
            |          
            |--1.28%-- 0x7fff59744898
            |          
            |--1.28%-- 0x7fff597447ee
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.12%-- 0x7fff5974489d
            |          __gettimeofday
            |          
            |--1.12%-- 0x7fff597447e4
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.96%-- 0x7fff59744811
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.96%-- 0x7fff597448a1
            |          __gettimeofday
            |          
            |--0.80%-- 0x7fff5974480a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.64%-- 0x7fff597448d1
            |          __gettimeofday
             --1.91%-- [...]

     0.82%  postgres  postgres                       [.] shm_mq_receive                           
            |
            --- shm_mq_receive

     0.78%  postgres  [kernel.kallsyms]              [k] native_read_tsc                          
            |
            --- native_read_tsc
               |          
               |--96.09%-- native_sched_clock
               |          sched_clock
               |          |          
               |          |--91.68%-- trace_clock_local
               |          |          |          
               |          |          |--99.42%-- rb_reserve_next_event
               |          |          |          ring_buffer_lock_reserve
               |          |          |          trace_buffer_lock_reserve
               |          |          |          trace_current_buffer_lock_reserve
               |          |          |          |          
               |          |          |          |--33.60%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          |          |          ftrace_raw_event_sched_wakeup
               |          |          |          |          try_to_wake_up
               |          |          |          |          wake_up_state
               |          |          |          |          signal_wake_up
               |          |          |          |          complete_signal
               |          |          |          |          __send_signal
               |          |          |          |          send_signal
               |          |          |          |          do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |          |--33.20%-- ftrace_raw_event_id_sched_stat_template
               |          |          |          |          ftrace_raw_event_sched_stat_sleep
               |          |          |          |          enqueue_entity
               |          |          |          |          enqueue_task_fair
               |          |          |          |          enqueue_task
               |          |          |          |          activate_task
               |          |          |          |          try_to_wake_up
               |          |          |          |          wake_up_state
               |          |          |          |          signal_wake_up
               |          |          |          |          complete_signal
               |          |          |          |          __send_signal
               |          |          |          |          send_signal
               |          |          |          |          do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |          |--31.07%-- ftrace_raw_event_signal_generate
               |          |          |          |          __send_signal
               |          |          |          |          send_signal
               |          |          |          |          do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |          |--1.17%-- ftrace_raw_event_sched_migrate_task
               |          |          |          |          set_task_cpu
               |          |          |          |          try_to_wake_up
               |          |          |          |          wake_up_state
               |          |          |          |          signal_wake_up
               |          |          |          |          complete_signal
               |          |          |          |          __send_signal
               |          |          |          |          send_signal
               |          |          |          |          do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |          |--0.78%-- ftrace_raw_event_id_softirq
               |          |          |          |          |          
               |          |          |          |          |--75.00%-- ftrace_raw_event_softirq_entry
               |          |          |          |          |          __do_softirq
               |          |          |          |          |          call_softirq
               |          |          |          |          |          do_softirq
               |          |          |          |          |          irq_exit
               |          |          |          |          |          smp_apic_timer_interrupt
               |          |          |          |          |          apic_timer_interrupt
               |          |          |          |          |          |          
               |          |          |          |          |          |--66.68%-- do_send_sig_info
               |          |          |          |          |          |          group_send_sig_info
               |          |          |          |          |          |          kill_pid_info
               |          |          |          |          |          |          sys_kill
               |          |          |          |          |          |          system_call
               |          |          |          |          |          |          __GI___kill
               |          |          |          |          |          |          
               |          |          |          |          |           --33.32%-- slot_deform_tuple
               |          |          |          |          |          
               |          |          |          |           --25.00%-- ftrace_raw_event_softirq_raise
               |          |          |          |                     raise_softirq
               |          |          |          |                     rcu_check_callbacks
               |          |          |          |                     update_process_times
               |          |          |          |                     tick_sched_timer
               |          |          |          |                     __run_hrtimer
               |          |          |          |                     hrtimer_interrupt
               |          |          |          |                     smp_apic_timer_interrupt
               |          |          |          |                     apic_timer_interrupt
               |          |          |          |                     memcpy
               |          |          |           --0.19%-- [...]
               |          |          |          
               |          |           --0.58%-- __rb_reserve_next
               |          |                     rb_reserve_next_event
               |          |                     ring_buffer_lock_reserve
               |          |                     trace_buffer_lock_reserve
               |          |                     trace_current_buffer_lock_reserve
               |          |                     |          
               |          |                     |--66.67%-- ftrace_raw_event_id_sched_stat_template
               |          |                     |          ftrace_raw_event_sched_stat_sleep
               |          |                     |          enqueue_entity
               |          |                     |          enqueue_task_fair
               |          |                     |          enqueue_task
               |          |                     |          activate_task
               |          |                     |          try_to_wake_up
               |          |                     |          wake_up_state
               |          |                     |          signal_wake_up
               |          |                     |          complete_signal
               |          |                     |          __send_signal
               |          |                     |          send_signal
               |          |                     |          do_send_sig_info
               |          |                     |          group_send_sig_info
               |          |                     |          kill_pid_info
               |          |                     |          sys_kill
               |          |                     |          system_call
               |          |                     |          __GI___kill
               |          |                     |          
               |          |                      --33.33%-- ftrace_raw_event_id_sched_wakeup_template
               |          |                                ftrace_raw_event_sched_wakeup
               |          |                                try_to_wake_up
               |          |                                wake_up_state
               |          |                                signal_wake_up
               |          |                                complete_signal
               |          |                                __send_signal
               |          |                                send_signal
               |          |                                do_send_sig_info
               |          |                                group_send_sig_info
               |          |                                kill_pid_info
               |          |                                sys_kill
               |          |                                system_call
               |          |                                __GI___kill
               |          |          
               |           --8.32%-- sched_clock_cpu
               |                     update_rq_clock
               |                     enqueue_task
               |                     activate_task
               |                     try_to_wake_up
               |                     wake_up_state
               |                     signal_wake_up
               |                     complete_signal
               |                     __send_signal
               |                     send_signal
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
                --3.91%-- sched_clock
                          |          
                          |--73.91%-- trace_clock_local
                          |          rb_reserve_next_event
                          |          ring_buffer_lock_reserve
                          |          trace_buffer_lock_reserve
                          |          trace_current_buffer_lock_reserve
                          |          |          
                          |          |--41.18%-- ftrace_raw_event_id_sched_wakeup_template
                          |          |          ftrace_raw_event_sched_wakeup
                          |          |          try_to_wake_up
                          |          |          wake_up_state
                          |          |          signal_wake_up
                          |          |          complete_signal
                          |          |          __send_signal
                          |          |          send_signal
                          |          |          do_send_sig_info
                          |          |          group_send_sig_info
                          |          |          kill_pid_info
                          |          |          sys_kill
                          |          |          system_call
                          |          |          __GI___kill
                          |          |          
                          |          |--29.41%-- ftrace_raw_event_id_sched_stat_template
                          |          |          ftrace_raw_event_sched_stat_sleep
                          |          |          enqueue_entity
                          |          |          enqueue_task_fair
                          |          |          enqueue_task
                          |          |          activate_task
                          |          |          try_to_wake_up
                          |          |          wake_up_state
                          |          |          signal_wake_up
                          |          |          complete_signal
                          |          |          __send_signal
                          |          |          send_signal
                          |          |          do_send_sig_info
                          |          |          group_send_sig_info
                          |          |          kill_pid_info
                          |          |          sys_kill
                          |          |          system_call
                          |          |          __GI___kill
                          |          |          
                          |          |--17.64%-- ftrace_raw_event_signal_generate
                          |          |          __send_signal
                          |          |          send_signal
                          |          |          do_send_sig_info
                          |          |          group_send_sig_info
                          |          |          kill_pid_info
                          |          |          sys_kill
                          |          |          system_call
                          |          |          __GI___kill
                          |          |          
                          |           --11.76%-- ftrace_raw_event_id_softirq
                          |                     |          
                          |                     |--50.00%-- ftrace_raw_event_softirq_raise
                          |                     |          raise_softirq
                          |                     |          run_local_timers
                          |                     |          update_process_times
                          |                     |          tick_sched_timer
                          |                     |          __run_hrtimer
                          |                     |          hrtimer_interrupt
                          |                     |          smp_apic_timer_interrupt
                          |                     |          apic_timer_interrupt
                          |                     |          vread_tsc
                          |                     |          
                          |                      --50.00%-- ftrace_raw_event_softirq_exit
                          |                                __do_softirq
                          |                                call_softirq
                          |                                do_softirq
                          |                                irq_exit
                          |                                smp_apic_timer_interrupt
                          |                                apic_timer_interrupt
                          |                                slot_getattr
                          |          
                           --26.09%-- sched_clock_cpu
                                     update_rq_clock
                                     enqueue_task
                                     activate_task
                                     try_to_wake_up
                                     wake_up_state
                                     signal_wake_up
                                     complete_signal
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.77%  postgres  [kernel.kallsyms]              [k] check_kill_permission                    
            |
            --- check_kill_permission
               |          
               |--98.78%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.22%-- kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.71%  postgres  [kernel.kallsyms]              [k] trace_clock_local                        
            |
            --- trace_clock_local
               |          
               |--85.54%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--34.71%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--33.63%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--30.56%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.88%-- ftrace_raw_event_id_softirq
               |          |          |          
               |          |          |--49.99%-- ftrace_raw_event_softirq_exit
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          |          
               |          |          |          |--50.00%-- memcpy
               |          |          |          |          
               |          |          |           --50.00%-- do_send_sig_info
               |          |          |                     group_send_sig_info
               |          |          |                     kill_pid_info
               |          |          |                     sys_kill
               |          |          |                     system_call
               |          |          |                     __GI___kill
               |          |          |          
               |          |          |--25.01%-- ftrace_raw_event_softirq_entry
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          do_send_sig_info
               |          |          |          group_send_sig_info
               |          |          |          kill_pid_info
               |          |          |          sys_kill
               |          |          |          system_call
               |          |          |          __GI___kill
               |          |          |          
               |          |           --24.99%-- ftrace_raw_event_softirq_raise
               |          |                     raise_softirq
               |          |                     rcu_check_callbacks
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     do_send_sig_info
               |          |                     group_send_sig_info
               |          |                     kill_pid_info
               |          |                     sys_kill
               |          |                     system_call
               |          |                     __GI___kill
               |           --0.22%-- [...]
               |          
               |--12.01%-- ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--46.96%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--28.00%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--21.91%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--1.57%-- ftrace_raw_event_id_softirq
               |          |          ftrace_raw_event_softirq_raise
               |          |          raise_softirq
               |          |          run_local_timers
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          add_abs
               |          |          
               |           --1.57%-- ftrace_raw_event_sched_migrate_task
               |                     set_task_cpu
               |                     try_to_wake_up
               |                     wake_up_state
               |                     signal_wake_up
               |                     complete_signal
               |                     __send_signal
               |                     send_signal
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
                --2.44%-- __rb_reserve_next
                          rb_reserve_next_event
                          ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--38.47%-- ftrace_raw_event_id_sched_stat_template
                          |          ftrace_raw_event_sched_stat_sleep
                          |          enqueue_entity
                          |          enqueue_task_fair
                          |          enqueue_task
                          |          activate_task
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--38.46%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --23.08%-- ftrace_raw_event_id_sched_wakeup_template
                                     ftrace_raw_event_sched_wakeup
                                     try_to_wake_up
                                     wake_up_state
                                     signal_wake_up
                                     complete_signal
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.68%  postgres  postgres                       [.] bcTruelen                                
            |
            --- bcTruelen

     0.65%  postgres  [kernel.kallsyms]              [k] _spin_unlock_irqrestore                  
            |
            --- _spin_unlock_irqrestore
               |          
               |--43.26%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--31.23%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--15.31%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--9.80%-- wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.41%-- [...]

     0.65%  postgres  postgres                       [.] shm_mq_receive_bytes                     
            |
            --- shm_mq_receive_bytes

     0.64%  postgres  [kernel.kallsyms]              [k] update_rq_clock                          
            |
            --- update_rq_clock
               |          
               |--96.44%-- enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --3.56%-- activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.62%  postgres  [kernel.kallsyms]              [k] update_curr                              
            |
            --- update_curr
               |          
               |--95.31%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--3.20%-- enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.49%-- task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--42.86%-- do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--14.29%-- ExecAgg
                          |          
                          |--14.29%-- vread_tsc
                          |          
                          |--14.28%-- fetch_input_tuple
                          |          
                           --14.28%-- ExecProject

     0.62%  postgres  [kernel.kallsyms]              [k] task_waking_fair                         
            |
            --- task_waking_fair
               |          
               |--97.41%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.59%-- wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.58%  postgres  postgres                       [.] ExecClearTuple                           
            |
            --- ExecClearTuple

     0.56%  postgres  postgres                       [.] int64_to_numericvar                      
            |
            --- int64_to_numericvar

     0.56%  postgres  [kernel.kallsyms]              [k] __task_pid_nr_ns                         
            |
            --- __task_pid_nr_ns
               |          
               |--95.92%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --4.08%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.55%  postgres  [kernel.kallsyms]              [k] system_call                              
            |
            --- system_call
               |          
               |--99.52%-- __GI___kill
                --0.48%-- [...]

     0.48%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_sched_stat_template  
            |
            --- ftrace_raw_event_id_sched_stat_template
               |          
               |--97.79%-- ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.21%-- enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.48%  postgres  [kernel.kallsyms]              [k] tracing_generic_entry_update             
            |
            --- tracing_generic_entry_update
               |          
               |--50.56%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--39.35%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--32.79%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--25.13%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--1.64%-- ftrace_raw_event_sched_migrate_task
               |          |          set_task_cpu
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.55%-- ftrace_raw_event_sched_stat_runtime
               |          |          update_curr
               |          |          task_tick_fair
               |          |          scheduler_tick
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --0.55%-- ftrace_raw_event_id_softirq
               |                     ftrace_raw_event_softirq_raise
               |                     raise_softirq
               |                     rcu_check_callbacks
               |                     update_process_times
               |                     tick_sched_timer
               |                     __run_hrtimer
               |                     hrtimer_interrupt
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     init_var_from_num
               |          
                --49.44%-- trace_current_buffer_lock_reserve
                          |          
                          |--52.51%-- ftrace_raw_event_id_sched_wakeup_template
                          |          ftrace_raw_event_sched_wakeup
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--28.49%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--17.88%-- ftrace_raw_event_id_sched_stat_template
                          |          ftrace_raw_event_sched_stat_sleep
                          |          enqueue_entity
                          |          enqueue_task_fair
                          |          enqueue_task
                          |          activate_task
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--0.56%-- ftrace_raw_event_sched_stat_runtime
                          |          update_curr
                          |          enqueue_entity
                          |          enqueue_task_fair
                          |          enqueue_task
                          |          activate_task
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --0.56%-- ftrace_raw_event_sched_migrate_task
                                     set_task_cpu
                                     try_to_wake_up
                                     wake_up_state
                                     signal_wake_up
                                     complete_signal
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.47%  postgres  [kernel.kallsyms]              [k] sys_kill                                 
            |
            --- sys_kill
               |          
               |--83.66%-- system_call
               |          __GI___kill
               |          
                --16.34%-- __GI___kill

     0.47%  postgres  postgres                       [.] pfree                                    
            |
            --- pfree

     0.47%  postgres  postgres                       [.] init_var_from_num                        
            |
            --- init_var_from_num
               |          
               |--58.12%-- slot_getsomeattrs
               |          
                --41.88%-- 0x0

     0.46%  postgres  postgres                       [.] slot_getsomeattrs                        
            |
            --- slot_getsomeattrs

     0.46%  postgres  postgres                       [.] StrategyGetBuffer                        
            |
            --- StrategyGetBuffer

     0.46%  postgres  [kernel.kallsyms]              [k] rb_end_commit                            
            |
            --- rb_end_commit
               |          
               |--90.99%-- ring_buffer_unlock_commit
               |          trace_nowake_buffer_unlock_commit
               |          |          
               |          |--37.38%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--30.99%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--30.35%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.64%-- ftrace_raw_event_sched_migrate_task
               |          |          set_task_cpu
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |           --0.64%-- [...]
               |          
                --9.01%-- trace_nowake_buffer_unlock_commit
                          |          
                          |--38.71%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--38.71%-- ftrace_raw_event_id_sched_wakeup_template
                          |          ftrace_raw_event_sched_wakeup
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --22.58%-- ftrace_raw_event_id_sched_stat_template
                                     ftrace_raw_event_sched_stat_sleep
                                     enqueue_entity
                                     enqueue_task_fair
                                     enqueue_task
                                     activate_task
                                     try_to_wake_up
                                     wake_up_state
                                     signal_wake_up
                                     complete_signal
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.46%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_signal_generate         
            |
            --- ftrace_raw_event_signal_generate
               |          
               |--88.30%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --11.70%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.43%  postgres  postgres                       [.] TupleHashTableHash                       
            |
            --- TupleHashTableHash
               |          
               |--25.00%-- 0x1d72000
                --75.00%-- [...]

     0.42%  postgres  postgres                       [.] palloc                                   
            |
            --- palloc
               |          
               |--11.08%-- networkjoinsel
               |          
               |--0.32%-- 0x0
                --88.61%-- [...]

     0.42%  postgres  postgres                       [.] int4_sum                                 
            |
            --- int4_sum

     0.42%  postgres  [kernel.kallsyms]              [k] send_signal                              
            |
            --- send_signal
               |          
               |--94.57%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --5.43%-- group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.40%  postgres  postgres                       [.] alloc_var                                
            |
            --- alloc_var

     0.40%  postgres  [kernel.kallsyms]              [k] ring_buffer_unlock_commit                
            |
            --- ring_buffer_unlock_commit
               |          
               |--80.54%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--38.34%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--36.67%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--23.33%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--0.83%-- ftrace_raw_event_sched_migrate_task
               |          |          set_task_cpu
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --0.83%-- ftrace_raw_event_id_softirq
               |                     ftrace_raw_event_softirq_entry
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     |          
               |                     |--50.02%-- vread_tsc
               |                     |          
               |                      --49.98%-- find_vpid
               |                                sys_kill
               |                                system_call
               |                                __GI___kill
               |          
               |--9.73%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--6.38%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.68%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.67%-- [...]

     0.39%  postgres  [kernel.kallsyms]              [k] pid_vnr                                  
            |
            --- pid_vnr
               |          
               |--97.97%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.03%-- system_call
                          __GI___kill

     0.39%  postgres  [kernel.kallsyms]              [k] audit_syscall_entry                      
            |
            --- audit_syscall_entry
               |          
               |--93.90%-- auditsys
               |          __GI___kill
               |          
                --6.10%-- __GI___kill

     0.38%  postgres  postgres                       [.] AllocSetFree                             
            |
            --- AllocSetFree

     0.38%  postgres  postgres                       [.] execTuplesMatch                          
            |
            --- execTuplesMatch

     0.37%  postgres  postgres                       [.] ExecProcNode                             
            |
            --- ExecProcNode

     0.37%  postgres  [kernel.kallsyms]              [k] trace_nowake_buffer_unlock_commit        
            |
            --- trace_nowake_buffer_unlock_commit
               |          
               |--61.15%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--15.47%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--14.75%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--6.47%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--1.08%-- ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--0.72%-- ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
                --0.36%-- [...]

     0.37%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_sched_wakeup_template
            |
            --- ftrace_raw_event_id_sched_wakeup_template
               |          
               |--97.46%-- ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.54%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.37%  postgres  [kernel.kallsyms]              [k] select_idle_sibling                      
            |
            --- select_idle_sibling
               |          
               |--81.09%-- select_task_rq_fair
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --18.91%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.36%  postgres  [kernel.kallsyms]              [k] check_preempt_curr                       
            |
            --- check_preempt_curr
               |          
               |--95.24%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --4.76%-- wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.35%  postgres  [kernel.kallsyms]              [k] task_rq_lock                             
            |
            --- task_rq_lock
               |          
               |--95.04%-- try_to_wake_up
               |          |          
               |          |--99.60%-- wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |           --0.40%-- [...]
               |          
                --4.96%-- wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.34%  postgres  postgres                       [.] int8_avg_accum                           
            |
            --- int8_avg_accum

     0.32%  postgres  [kernel.kallsyms]              [k] do_send_sig_info                         
            |
            --- do_send_sig_info
               |          
               |--96.67%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --3.33%-- kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.29%  postgres  [kernel.kallsyms]              [k] native_sched_clock                       
            |
            --- native_sched_clock
               |          
               |--75.12%-- sched_clock
               |          |          
               |          |--76.50%-- trace_clock_local
               |          |          |          
               |          |          |--97.64%-- rb_reserve_next_event
               |          |          |          ring_buffer_lock_reserve
               |          |          |          trace_buffer_lock_reserve
               |          |          |          trace_current_buffer_lock_reserve
               |          |          |          |          
               |          |          |          |--44.36%-- ftrace_raw_event_id_sched_stat_template
               |          |          |          |          ftrace_raw_event_sched_stat_sleep
               |          |          |          |          enqueue_entity
               |          |          |          |          enqueue_task_fair
               |          |          |          |          enqueue_task
               |          |          |          |          activate_task
               |          |          |          |          try_to_wake_up
               |          |          |          |          wake_up_state
               |          |          |          |          signal_wake_up
               |          |          |          |          complete_signal
               |          |          |          |          __send_signal
               |          |          |          |          send_signal
               |          |          |          |          do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |          |--29.03%-- ftrace_raw_event_signal_generate
               |          |          |          |          __send_signal
               |          |          |          |          send_signal
               |          |          |          |          do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |           --26.61%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          |                     ftrace_raw_event_sched_wakeup
               |          |          |                     try_to_wake_up
               |          |          |                     wake_up_state
               |          |          |                     signal_wake_up
               |          |          |                     complete_signal
               |          |          |                     __send_signal
               |          |          |                     send_signal
               |          |          |                     do_send_sig_info
               |          |          |                     group_send_sig_info
               |          |          |                     kill_pid_info
               |          |          |                     sys_kill
               |          |          |                     system_call
               |          |          |                     __GI___kill
               |          |          |          
               |          |           --2.36%-- __rb_reserve_next
               |          |                     rb_reserve_next_event
               |          |                     ring_buffer_lock_reserve
               |          |                     trace_buffer_lock_reserve
               |          |                     trace_current_buffer_lock_reserve
               |          |                     |          
               |          |                     |--66.67%-- ftrace_raw_event_id_sched_wakeup_template
               |          |                     |          ftrace_raw_event_sched_wakeup
               |          |                     |          try_to_wake_up
               |          |                     |          wake_up_state
               |          |                     |          signal_wake_up
               |          |                     |          complete_signal
               |          |                     |          __send_signal
               |          |                     |          send_signal
               |          |                     |          do_send_sig_info
               |          |                     |          group_send_sig_info
               |          |                     |          kill_pid_info
               |          |                     |          sys_kill
               |          |                     |          system_call
               |          |                     |          __GI___kill
               |          |                     |          
               |          |                      --33.33%-- ftrace_raw_event_id_sched_stat_template
               |          |                                ftrace_raw_event_sched_stat_sleep
               |          |                                enqueue_entity
               |          |                                enqueue_task_fair
               |          |                                enqueue_task
               |          |                                activate_task
               |          |                                try_to_wake_up
               |          |                                wake_up_state
               |          |                                signal_wake_up
               |          |                                complete_signal
               |          |                                __send_signal
               |          |                                send_signal
               |          |                                do_send_sig_info
               |          |                                group_send_sig_info
               |          |                                kill_pid_info
               |          |                                sys_kill
               |          |                                system_call
               |          |                                __GI___kill
               |          |          
               |           --23.50%-- sched_clock_cpu
               |                     update_rq_clock
               |                     enqueue_task
               |                     activate_task
               |                     try_to_wake_up
               |                     wake_up_state
               |                     signal_wake_up
               |                     complete_signal
               |                     __send_signal
               |                     send_signal
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
               |--15.84%-- trace_clock_local
               |          rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--42.85%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--31.43%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --25.72%-- ftrace_raw_event_signal_generate
               |                     __send_signal
               |                     send_signal
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
                --9.05%-- sched_clock_cpu
                          update_rq_clock
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.29%  postgres  postgres                       [.] TupleQueueFunnelNext                     
            |
            --- TupleQueueFunnelNext

     0.28%  postgres  postgres                       [.] hashbpchar                               
            |
            --- hashbpchar

     0.27%  postgres  postgres                       [.] fetch_input_tuple                        
            |
            --- fetch_input_tuple

     0.25%  postgres  libc-2.12.so                   [.] __GI___kill                              
            |
            --- __GI___kill

     0.25%  postgres  postgres                       [.] LookupTupleHashEntry                     
            |
            --- LookupTupleHashEntry
               |          
               |--81.06%-- 0x1d4108000000000
                --18.94%-- [...]

     0.25%  postgres  postgres                       [.] FunctionCall2Coll                        
            |
            --- FunctionCall2Coll

     0.25%  postgres  [kernel.kallsyms]              [k] find_pid_ns                              
            |
            --- find_pid_ns
               |          
               |--91.44%-- find_vpid
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --8.56%-- sys_kill
                          system_call
                          __GI___kill

     0.25%  postgres  [kernel.kallsyms]              [k] effective_load                           
            |
            --- effective_load
               |          
               |--64.33%-- select_task_rq_fair
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --35.67%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.24%  postgres  libc-2.12.so                   [.] __gettimeofday                           
            |
            --- __gettimeofday

     0.24%  postgres  [kernel.kallsyms]              [k] kill_pid_info                            
            |
            --- kill_pid_info
               |          
               |--89.32%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --10.68%-- system_call
                          __GI___kill

     0.23%  postgres  postgres                       [.] AllocSetReset                            
            |
            --- AllocSetReset

     0.22%  postgres  [kernel.kallsyms]              [k] group_send_sig_info                      
            |
            --- group_send_sig_info
               |          
               |--91.02%-- kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --8.98%-- sys_kill
                          system_call
                          __GI___kill

     0.22%  postgres  [kernel.kallsyms]              [k] sysret_check                             
            |
            --- sysret_check
                __GI___kill

     0.21%  postgres  [kernel.kallsyms]              [k] ring_buffer_event_data                   
            |
            --- ring_buffer_event_data
               |          
               |--33.75%-- trace_current_buffer_lock_reserve
               |          |          
               |          |--38.47%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--30.77%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --30.76%-- ftrace_raw_event_signal_generate
               |                     __send_signal
               |                     send_signal
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
               |--18.83%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--41.39%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--31.03%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--24.14%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --3.45%-- ftrace_raw_event_id_softirq
               |                     ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
               |--9.74%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--7.82%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--7.79%-- ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--7.14%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--7.14%-- ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--7.14%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.65%-- ftrace_raw_event_id_softirq
                          ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.21%  postgres  [kernel.kallsyms]              [k] __list_add                               
            |
            --- __list_add
               |          
               |--46.11%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--41.55%-- account_entity_enqueue
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--6.50%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --5.85%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.20%  postgres  postgres                       [.] FunctionCall1Coll                        
            |
            --- FunctionCall1Coll

     0.20%  postgres  [kernel.kallsyms]              [k] update_cfs_shares                        
            |
            --- update_cfs_shares
               |          
               |--89.54%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --10.46%-- enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.20%  postgres  [kernel.kallsyms]              [k] trace_recursive_unlock                   
            |
            --- trace_recursive_unlock
               |          
               |--68.22%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--57.28%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--26.21%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--15.53%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --0.97%-- ftrace_raw_event_id_softirq
               |                     ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     bpchareq
               |          
                --31.78%-- ring_buffer_unlock_commit
                          trace_nowake_buffer_unlock_commit
                          |          
                          |--37.51%-- ftrace_raw_event_id_sched_stat_template
                          |          ftrace_raw_event_sched_stat_sleep
                          |          enqueue_entity
                          |          enqueue_task_fair
                          |          enqueue_task
                          |          activate_task
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--37.48%-- ftrace_raw_event_id_sched_wakeup_template
                          |          ftrace_raw_event_sched_wakeup
                          |          try_to_wake_up
                          |          wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --25.01%-- ftrace_raw_event_signal_generate
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.19%  postgres  postgres                       [.] heap_copytuple                           
            |
            --- heap_copytuple
               |          
               |--69.79%-- networkjoinsel
                --30.21%-- [...]

     0.18%  postgres  [kernel.kallsyms]              [k] enqueue_task_fair                        
            |
            --- enqueue_task_fair
               |          
               |--94.85%-- enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --5.15%-- activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.18%  postgres  [kernel.kallsyms]              [k] prepare_signal                           
            |
            --- prepare_signal
               |          
               |--91.05%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --8.95%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.18%  postgres  postgres                       [.] int8_numeric                             
            |
            --- int8_numeric

     0.17%  postgres  [kernel.kallsyms]              [k] rb_insert_color                          
            |
            --- rb_insert_color
               |          
               |--90.06%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --9.94%-- enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.17%  postgres  postgres                       [.] DirectFunctionCall1Coll                  
            |
            --- DirectFunctionCall1Coll

     0.17%  postgres  postgres                       [.] add_var                                  
            |
            --- add_var
               |          
               |--49.21%-- 0x0
                --50.79%-- [...]

     0.16%  postgres  postgres                       [.] pg_detoast_datum_packed                  
            |
            --- pg_detoast_datum_packed

     0.15%  postgres  postgres                       [.] InstrStopNode                            
            |
            --- InstrStopNode

     0.15%  postgres  postgres                       [.] ExecFunnel                               
            |
            --- ExecFunnel

     0.15%  postgres  [kernel.kallsyms]              [k] account_entity_enqueue                   
            |
            --- account_entity_enqueue
               |          
               |--91.74%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --8.26%-- enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.14%  postgres  postgres                       [.] free_var                                 
            |
            --- free_var

     0.13%  postgres  [kernel.kallsyms]              [k] update_cfs_load                          
            |
            --- update_cfs_load
               |          
               |--82.18%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--13.86%-- enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.97%-- task_tick_fair
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--66.67%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --33.33%-- do_numeric_accum
               |          
                --0.99%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.13%  postgres  [kernel.kallsyms]              [k] kfree                                    
            |
            --- kfree
               |          
               |--57.30%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___kill
               |          
                --42.70%-- sysret_audit
                          __GI___kill

     0.13%  postgres  postgres                       [.] strip_var                                
            |
            --- strip_var

     0.13%  postgres  postgres                       [.] ExecStoreTuple                           
            |
            --- ExecStoreTuple

     0.11%  postgres  postgres                       [.] InstrStartNode                           
            |
            --- InstrStartNode

     0.10%  postgres  postgres                       [.] hash_search                              
            |
            --- hash_search
               |          
               |--51.28%-- 0x1d4108000000000
               |          
                --48.72%-- 0x1d72000

     0.10%  postgres  [kernel.kallsyms]              [k] current_kernel_time                      
            |
            --- current_kernel_time
               |          
               |--53.85%-- auditsys
               |          __GI___kill
               |          
                --46.15%-- audit_syscall_entry
                          auditsys
                          __GI___kill

     0.10%  postgres  postgres                       [.] TupleHashTableMatch                      
            |
            --- TupleHashTableMatch

     0.10%  postgres  [kernel.kallsyms]              [k] ret_from_sys_call                        
            |
            --- ret_from_sys_call
                __GI___kill

     0.09%  postgres  postgres                       [.] ExecStoreVirtualTuple                    
            |
            --- ExecStoreVirtualTuple

     0.09%  postgres  [kernel.kallsyms]              [k] filter_current_check_discard             
            |
            --- filter_current_check_discard
               |          
               |--25.76%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--24.25%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--18.18%-- ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--12.12%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--12.11%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--4.55%-- ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--1.51%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.51%-- ftrace_raw_event_id_softirq
                          ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.08%  postgres  postgres                       [.] MemoryContextReset                       
            |
            --- MemoryContextReset

     0.08%  postgres  [kernel.kallsyms]              [k] auditsys                                 
            |
            --- auditsys
                __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] place_entity                             
            |
            --- place_entity
               |          
               |--77.78%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --22.22%-- enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_stat_sleep        
            |
            --- ftrace_raw_event_sched_stat_sleep
               |          
               |--66.67%-- enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --33.33%-- enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] wake_up_state                            
            |
            --- wake_up_state
               |          
               |--68.63%-- complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --31.37%-- signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] memcpy                                   
            |
            --- memcpy
                cache_alloc_refill
                kmem_cache_alloc
                __sigqueue_alloc
                __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.06%  postgres  [kernel.kallsyms]              [k] task_active_pid_ns                       
            |
            --- task_active_pid_ns
               |          
               |--89.58%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --10.42%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.05%  postgres  [kernel.kallsyms]              [k] ftrace_trace_stack                       
            |
            --- ftrace_trace_stack
               |          
               |--36.59%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--21.95%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--19.51%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--62.50%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--25.01%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --12.50%-- ftrace_raw_event_signal_generate
               |                     __send_signal
               |                     send_signal
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
               |--19.51%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.44%-- ftrace_raw_event_sched_stat_runtime
                          update_curr
                          task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.05%  postgres  [kernel.kallsyms]              [k] sched_clock                              
            |
            --- sched_clock
               |          
               |--75.00%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--40.00%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--36.67%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --23.33%-- ftrace_raw_event_id_sched_stat_template
               |                     ftrace_raw_event_sched_stat_sleep
               |                     enqueue_entity
               |                     enqueue_task_fair
               |                     enqueue_task
               |                     activate_task
               |                     try_to_wake_up
               |                     wake_up_state
               |                     signal_wake_up
               |                     complete_signal
               |                     __send_signal
               |                     send_signal
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
               |--22.50%-- update_rq_clock
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.50%-- __rb_reserve_next
                          rb_reserve_next_event
                          ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          ftrace_raw_event_signal_generate
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.05%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_wakeup            
            |
            --- ftrace_raw_event_sched_wakeup
               |          
               |--80.00%-- wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --20.00%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.05%  postgres  [kernel.kallsyms]              [k] unroll_tree_refs                         
            |
            --- unroll_tree_refs
               |          
               |--84.62%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___kill
               |          
                --15.38%-- sysret_audit
                          __GI___kill

     0.05%  postgres  [kernel.kallsyms]              [k] pid_task                                 
            |
            --- pid_task
               |          
               |--55.56%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --44.44%-- kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.04%  postgres  postgres                       [.] MemoryContextResetOnly                   
            |
            --- MemoryContextResetOnly

     0.04%  postgres  postgres                       [.] s_lock                                   
            |
            --- s_lock

     0.03%  postgres  [kernel.kallsyms]              [k] path_put                                 
            |
            --- path_put
               |          
               |--73.08%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___kill
               |          
                --26.92%-- sysret_audit
                          __GI___kill

     0.03%  postgres  [kernel.kallsyms]              [k] dput                                     
            |
            --- dput
               |          
               |--79.16%-- path_put
               |          __audit_syscall_exit
               |          sysret_audit
               |          __GI___kill
               |          
                --20.84%-- __audit_syscall_exit
                          sysret_audit
                          __GI___kill

     0.03%  postgres  [kernel.kallsyms]              [k] sched_clock_cpu                          
            |
            --- sched_clock_cpu
               |          
               |--87.50%-- update_rq_clock
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --12.50%-- enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.03%  postgres  [kernel.kallsyms]              [k] set_task_cpu                             
            |
            --- set_task_cpu
               |          
               |--91.30%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --8.70%-- wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.03%  postgres  [kernel.kallsyms]              [k] activate_task                            
            |
            --- activate_task
               |          
               |--59.09%-- wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --40.91%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.03%  postgres  postgres                       [.] pg_detoast_datum                         
            |
            --- pg_detoast_datum

     0.03%  postgres  [kernel.kallsyms]              [k] sysret_signal                            
            |
            --- sysret_signal
                __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] cap_task_kill                            
            |
            --- cap_task_kill
               |          
               |--83.33%-- check_kill_permission
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --16.67%-- security_task_kill
                          check_kill_permission
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.02%  postgres  postgres                       [.] gettimeofday@plt                         
            |
            --- gettimeofday@plt

     0.02%  postgres  [kernel.kallsyms]              [k] find_vpid                                
            |
            --- find_vpid
               |          
               |--52.94%-- system_call
               |          __GI___kill
               |          
                --47.06%-- sys_kill
                          system_call
                          __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] task_of                                  
            |
            --- task_of
               |          
               |--52.94%-- enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --47.06%-- enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] transfer_objects                         
            |
            --- transfer_objects
                cache_alloc_refill
                kmem_cache_alloc
                __sigqueue_alloc
                __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] sysret_careful                           
            |
            --- sysret_careful
                __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] rcu_process_gp_end                       
            |
            --- rcu_process_gp_end
               |          
               |--90.91%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--70.01%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--10.00%-- memcpy
               |          |          
               |          |--10.00%-- slot_deform_tuple
               |          |          
               |           --9.99%-- alloc_pages_vma
               |                     handle_pte_fault
               |                     handle_mm_fault
               |                     __do_page_fault
               |                     do_page_fault
               |                     page_fault
               |                     element_alloc
               |          
                --9.09%-- rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          memcpy

     0.01%  postgres  [kernel.kallsyms]              [k] __do_softirq                             
            |
            --- __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--63.65%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--9.09%-- int8_avg_accum
               |          
               |--9.09%-- slot_deform_tuple
               |          
               |--9.09%-- shm_mq_inc_bytes_read
               |          
                --9.07%-- hash_search_with_hash_value

     0.01%  postgres  [kernel.kallsyms]              [k] scheduler_tick                           
            |
            --- scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--10.00%-- memcpy
               |          
               |--10.00%-- InstrStartNode
               |          
               |--10.00%-- free_var
               |          
               |--10.00%-- ExecProject
               |          
                --9.99%-- shm_mq_inc_bytes_read

     0.01%  postgres  [kernel.kallsyms]              [k] sysret_audit                             
            |
            --- sysret_audit
                __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] tracesys                                 
            |
            --- tracesys
                __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] security_task_kill                       
            |
            --- security_task_kill
               |          
               |--55.56%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --44.44%-- check_kill_permission
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] run_timer_softirq                        
            |
            --- run_timer_softirq
               |          
               |--66.66%-- __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.34%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--16.67%-- shm_mq_inc_bytes_read
               |          |          
               |          |--16.67%-- init_var_from_num
               |          |          
               |          |--16.67%-- ExecStoreTuple
               |          |          
               |           --16.66%-- LookupTupleHashEntry
               |          
                --33.34%-- call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--33.34%-- hash_search_with_hash_value
                          |          
                          |--33.33%-- do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --33.33%-- __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] cache_alloc_refill                       
            |
            --- cache_alloc_refill
               |          
               |--50.01%-- kmem_cache_alloc
               |          __sigqueue_alloc
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.99%-- __sigqueue_alloc
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] native_apic_mem_write                    
            |
            --- native_apic_mem_write
                apic_timer_interrupt
               |          
               |--62.53%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--12.51%-- ExecProject
               |          
               |--12.51%-- slot_deform_tuple
               |          
                --12.45%-- do_numeric_accum

     0.01%  postgres  [kernel.kallsyms]              [k] native_write_msr_safe                    
            |
            --- native_write_msr_safe
               |          
               |--71.01%-- intel_pmu_disable_all
               |          x86_pmu_disable
               |          perf_pmu_disable
               |          perf_adjust_freq_unthr_context
               |          perf_event_task_tick
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--60.00%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--20.00%-- memcpy
               |          |          
               |           --20.00%-- do_numeric_accum
               |          
               |--14.79%-- intel_pmu_enable_all
               |          x86_pmu_enable
               |          perf_pmu_enable
               |          |          
               |          |--95.99%-- perf_adjust_freq_unthr_context
               |          |          perf_event_task_tick
               |          |          scheduler_tick
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --4.01%-- perf_event_context_sched_in
               |                     __perf_event_task_sched_in
               |                     finish_task_switch
               |                     thread_return
               |                     schedule_hrtimeout_range
               |                     poll_schedule_timeout
               |                     do_sys_poll
               |                     sys_poll
               |                     system_call
               |                     __poll
               |                     0x72c4479b242c
               |          
                --14.20%-- x86_pmu_disable
                          perf_pmu_disable
                          perf_adjust_freq_unthr_context
                          perf_event_task_tick
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_numeric_accum

     0.01%  postgres  [kernel.kallsyms]              [k] ktime_get                                
            |
            --- ktime_get
               |          
               |--71.43%-- tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--60.00%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--20.01%-- execTuplesMatch
               |          |          
               |           --19.99%-- sysret_audit
               |                     __GI___kill
               |          
               |--14.28%-- tick_program_event
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          make_result
               |          
                --14.28%-- tick_dev_program_event
                          tick_program_event
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] hrtimer_interrupt                        
            |
            --- hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--57.15%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--14.29%-- AllocSetAlloc
               |          
               |--14.28%-- make_result
               |          
                --14.28%-- vread_tsc

     0.01%  postgres  postgres                       [.] heap_freetuple                           
            |
            --- heap_freetuple

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_softirq              
            |
            --- ftrace_raw_event_id_softirq
               |          
               |--42.86%-- ftrace_raw_event_softirq_raise
               |          raise_softirq
               |          |          
               |          |--66.65%-- rcu_check_callbacks
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          |          
               |          |          |--50.01%-- shm_mq_receive_bytes
               |          |          |          
               |          |           --49.99%-- heap_copytuple
               |          |          
               |           --33.35%-- run_local_timers
               |                     update_process_times
               |                     tick_sched_timer
               |                     __run_hrtimer
               |                     hrtimer_interrupt
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     slot_deform_tuple
               |          
               |--28.56%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.01%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --49.99%-- ExecAgg
               |          
               |--14.29%-- ftrace_raw_event_softirq_exit
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --14.29%-- raise_softirq
                          run_local_timers
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] perf_event_task_tick                     
            |
            --- perf_event_task_tick
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--14.29%-- advance_transition_function
               |          
               |--14.29%-- shm_mq_inc_bytes_read
               |          
               |--14.29%-- strip_var
               |          
               |--14.29%-- slot_deform_tuple
               |          
               |--14.29%-- make_result
               |          
               |--14.29%-- ExecProject
               |          
                --14.27%-- hash_search_with_hash_value

     0.01%  postgres  postgres                       [.] memcpy@plt                               
            |
            --- memcpy@plt
               |          
               |--16.67%-- networkjoinsel
                --83.33%-- [...]

     0.01%  postgres  [kernel.kallsyms]              [k] task_tick_fair                           
            |
            --- task_tick_fair
               |          
               |--83.34%-- scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--60.00%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--20.01%-- memcpy
               |          |          
               |           --20.00%-- free_var
               |          
                --16.66%-- update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          strip_var

     0.01%  postgres  [kernel.kallsyms]              [k] rb_erase                                 
            |
            --- rb_erase
               |          
               |--80.01%-- __remove_hrtimer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--49.99%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--25.01%-- palloc
               |          |          
               |           --25.00%-- memcpy
               |          
                --19.99%-- __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] raise_softirq                            
            |
            --- raise_softirq
               |          
               |--60.00%-- run_local_timers
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.34%-- do_numeric_accum
               |          |          
               |          |--33.33%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --33.32%-- ExecProject
               |          
               |--20.00%-- rcu_check_callbacks
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          shm_mq_inc_bytes_read
               |          
                --20.00%-- update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          hashbpchar

     0.01%  postgres  [kernel.kallsyms]              [k] find_next_bit                            
            |
            --- find_next_bit
               |          
               |--60.00%-- cpumask_next_and
               |          select_idle_sibling
               |          select_task_rq_fair
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--20.00%-- default_send_IPI_mask_sequence_phys
               |          physflat_send_IPI_mask
               |          native_smp_send_reschedule
               |          kick_process
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --20.00%-- physflat_send_IPI_mask
                          native_smp_send_reschedule
                          kick_process
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_migrate_task      
            |
            --- ftrace_raw_event_sched_migrate_task
                set_task_cpu
                try_to_wake_up
               |          
               |--80.00%-- wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --20.00%-- wake_up_process
                          hrtimer_wakeup
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] apic_timer_interrupt                     
            |
            --- apic_timer_interrupt
               |          
               |--25.00%-- TupleHashTableHash
               |          
               |--25.00%-- AllocSetReset
               |          
               |--25.00%-- SetLatch
               |          
                --25.00%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_stat_runtime      
            |
            --- ftrace_raw_event_sched_stat_runtime
                update_curr
                task_tick_fair
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--75.01%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --24.99%-- InstrStopNode

     0.01%  postgres  [kernel.kallsyms]              [k] default_send_IPI_mask_sequence_phys      
            |
            --- default_send_IPI_mask_sequence_phys
               |          
               |--74.98%-- physflat_send_IPI_mask
               |          native_smp_send_reschedule
               |          kick_process
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --25.02%-- native_smp_send_reschedule
                          kick_process
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] printk_tick                              
            |
            --- printk_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--75.01%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --24.99%-- TupleQueueFunnelNext

     0.01%  postgres  [kernel.kallsyms]              [k] account_system_time                      
            |
            --- account_system_time
                account_process_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] force_quiescent_state                    
            |
            --- force_quiescent_state
               |          
               |--75.00%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--66.68%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --33.32%-- shm_mq_inc_bytes_read
               |          
                --25.00%-- rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          memcpy

     0.01%  postgres  postgres                       [.] numeric_sum                              
            |
            --- numeric_sum

     0.00%  postgres  [kernel.kallsyms]              [k] ktime_get_update_offsets                 
            |
            --- ktime_get_update_offsets
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--66.66%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --33.34%-- memcpy

     0.00%  postgres  [kernel.kallsyms]              [k] sched_clock_tick                         
            |
            --- sched_clock_tick
               |          
               |--66.65%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- memcpy
               |          |          
               |           --50.00%-- make_result
               |          
                --33.35%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_irq_enter                            
            |
            --- rcu_irq_enter
                irq_enter
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--66.67%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --33.33%-- slot_getattr

     0.00%  postgres  [kernel.kallsyms]              [k] hrtimer_run_queues                       
            |
            --- hrtimer_run_queues
               |          
               |--66.67%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- alloc_var
               |          |          
               |           --50.00%-- hashbpchar
               |          
                --33.33%-- run_local_timers
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_process_callbacks                    
            |
            --- rcu_process_callbacks
               |          
               |--66.67%-- call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.01%-- memcpy
               |          |          
               |           --49.99%-- do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
                --33.33%-- __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] cpumask_next_and                         
            |
            --- cpumask_next_and
               |          
               |--66.67%-- select_idle_sibling
               |          select_task_rq_fair
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --33.33%-- select_task_rq_fair
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] __rcu_process_callbacks                  
            |
            --- __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.34%-- vread_tsc
               |          
               |--33.33%-- ExecAgg
               |          
                --33.33%-- __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] run_posix_cpu_timers                     
            |
            --- run_posix_cpu_timers
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--66.70%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --33.30%-- advance_aggregates

     0.00%  postgres  [kernel.kallsyms]              [k] call_softirq                             
            |
            --- call_softirq
               |          
               |--66.69%-- do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- do_numeric_accum
               |          |          
               |           --50.00%-- memcpy
               |          
                --33.31%-- irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] clear_page_c                             
            |
            --- clear_page_c
                __alloc_pages_nodemask
                alloc_pages_vma
                handle_pte_fault
                handle_mm_fault
                __do_page_fault
                do_page_fault
                page_fault
               |          
               |--66.67%-- palloc0
               |          
                --33.33%-- element_alloc

     0.00%  postgres  libc-2.12.so                   [.] _int_malloc                              
            |
            --- _int_malloc

     0.00%  postgres  postgres                       [.] _outNode                                 
            |
            --- _outNode

     0.00%  postgres  [kernel.kallsyms]              [k] account_process_tick                     
            |
            --- account_process_tick
               |          
               |--50.01%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.99%-- tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          shm_mq_inc_bytes_read

     0.00%  postgres  [kernel.kallsyms]              [k] smp_apic_timer_interrupt                 
            |
            --- smp_apic_timer_interrupt
               |          
               |--50.00%-- auditsys
               |          __GI___kill
               |          
                --50.00%-- apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] _spin_lock_irq                           
            |
            --- _spin_lock_irq
               |          
               |--50.01%-- do_signal
               |          do_notify_resume
               |          retint_signal
               |          procsignal_sigusr1_handler
               |          networkjoinsel
               |          
                --49.99%-- run_timer_softirq
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] perf_pmu_disable                         
            |
            --- perf_pmu_disable
                perf_event_task_tick
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.00%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --50.00%-- AllocSetAlloc

     0.00%  postgres  [kernel.kallsyms]              [k] dyntick_save_progress_counter            
            |
            --- dyntick_save_progress_counter
                rcu_process_dyntick
                force_quiescent_state
                __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.00%-- slot_deform_tuple
               |          
                --50.00%-- 0x7fff5974482a

     0.00%  postgres  [kernel.kallsyms]              [k] do_softirq                               
            |
            --- do_softirq
               |          
               |--50.01%-- irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.99%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          InstrStopNode

     0.00%  postgres  [kernel.kallsyms]              [k] hrtimer_run_pending                      
            |
            --- hrtimer_run_pending
               |          
               |--50.01%-- __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.99%-- run_timer_softirq
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecClearTuple

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_bh_qs                                
            |
            --- rcu_bh_qs
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.00%-- memcpy
               |          
                --50.00%-- bpchareq

     0.00%  postgres  [kernel.kallsyms]              [k] exit_idle                                
            |
            --- exit_idle
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] perf_adjust_freq_unthr_context           
            |
            --- perf_adjust_freq_unthr_context
                perf_event_task_tick
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.02%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.98%-- memcpy

     0.00%  postgres  [kernel.kallsyms]              [k] __local_bh_enable                        
            |
            --- __local_bh_enable
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.99%-- slot_deform_tuple

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_check_callbacks                      
            |
            --- rcu_check_callbacks
               |          
               |--50.00%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --50.00%-- tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecProcNode

     0.00%  postgres  [kernel.kallsyms]              [k] do_timer                                 
            |
            --- do_timer
                tick_do_update_jiffies64
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- __GI___kill
               |          
                --49.99%-- hash_search_with_hash_value

     0.00%  postgres  [kernel.kallsyms]              [k] restore_args                             
            |
            --- restore_args
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] account_cfs_rq_runtime                   
            |
            --- account_cfs_rq_runtime
                update_curr
                task_tick_fair
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.00%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --50.00%-- execTuplesMatch

     0.00%  postgres  [kernel.kallsyms]              [k] update_process_times                     
            |
            --- update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] update_cpu_load                          
            |
            --- update_cpu_load
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.00%-- memcpy
               |          
                --50.00%-- advance_aggregates

     0.00%  postgres  [kernel.kallsyms]              [k] idle_cpu                                 
            |
            --- idle_cpu
                irq_enter
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] list_del                                 
            |
            --- list_del
               |          
               |--50.02%-- free_pcppages_bulk
               |          free_hot_cold_page
               |          __pagevec_free
               |          release_pages
               |          free_pages_and_swap_cache
               |          unmap_region
               |          do_munmap
               |          sys_brk
               |          system_call
               |          __brk
               |          
                --49.98%-- activate_page
                          mark_page_accessed
                          unmap_vmas
                          unmap_region
                          do_munmap
                          sys_munmap
                          system_call
                          __GI___munmap

     0.00%  postgres  [kernel.kallsyms]              [k] clockevents_program_event                
            |
            --- clockevents_program_event
               |          
               |--50.03%-- tick_dev_program_event
               |          tick_program_event
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.97%-- tick_program_event
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          hash_any

     0.00%  postgres  postgres                       [.] hash_seq_search                          
            |
            --- hash_seq_search

     0.00%  postgres  [kernel.kallsyms]              [k] __mem_cgroup_commit_charge               
            |
            --- __mem_cgroup_commit_charge
                mem_cgroup_charge_common
                mem_cgroup_newpage_charge
                handle_pte_fault
                handle_mm_fault
                __do_page_fault
                do_page_fault
                page_fault
                _int_malloc

     0.00%  postgres  postgres                       [.] ExecQual                                 
            |
            --- ExecQual

     0.00%  postgres  postgres                       [.] palloc0                                  
            |
            --- palloc0

     0.00%  postgres  [kernel.kallsyms]              [k] __remove_hrtimer                         
            |
            --- __remove_hrtimer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                SetLatch

     0.00%  postgres  [kernel.kallsyms]              [k] handle_edge_irq                          
            |
            --- handle_edge_irq
                handle_irq
                do_IRQ
                ret_from_intr
                add_var

     0.00%  postgres  [kernel.kallsyms]              [k] hrtick_start_fair                        
            |
            --- hrtick_start_fair
                enqueue_task_fair
                enqueue_task
                activate_task
                try_to_wake_up
                wake_up_state
                signal_wake_up
                complete_signal
                __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_process_dyntick                      
            |
            --- rcu_process_dyntick
                force_quiescent_state
                __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                add_abs

     0.00%  postgres  [kernel.kallsyms]              [k] pick_next_task_fair                      
            |
            --- pick_next_task_fair
                schedule
                retint_careful
                add_abs

     0.00%  postgres  [kernel.kallsyms]              [k] tick_do_update_jiffies64                 
            |
            --- tick_do_update_jiffies64
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                memcpy

     0.00%  postgres  [kernel.kallsyms]              [k] __rcu_pending                            
            |
            --- __rcu_pending
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] calc_global_load                         
            |
            --- calc_global_load
                do_timer
                tick_do_update_jiffies64
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                advance_transition_function

     0.00%  postgres  [kernel.kallsyms]              [k] ret_from_intr                            
            |
            --- ret_from_intr
                do_numeric_accum

     0.00%  postgres  [kernel.kallsyms]              [k] irq_enter                                
            |
            --- irq_enter
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] enqueue_hrtimer                          
            |
            --- enqueue_hrtimer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] native_smp_send_reschedule               
            |
            --- native_smp_send_reschedule
                kick_process
                signal_wake_up
                complete_signal
                __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] __percpu_counter_add                     
            |
            --- __percpu_counter_add
                account_system_time
                account_process_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] perf_pmu_enable                          
            |
            --- perf_pmu_enable
                perf_adjust_freq_unthr_context
                perf_event_task_tick
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] strlen                                   
            |
            --- strlen
                handle_IRQ_event
                handle_edge_irq
                handle_irq
                do_IRQ
                ret_from_intr
                ExecStoreMinimalTuple

     0.00%  postgres  [kernel.kallsyms]              [k] physflat_send_IPI_mask                   
            |
            --- physflat_send_IPI_mask
                native_smp_send_reschedule
                kick_process
                signal_wake_up
                complete_signal
                __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] check_for_new_grace_period               
            |
            --- check_for_new_grace_period
                __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] tick_program_event                       
            |
            --- tick_program_event
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] irq_exit                                 
            |
            --- irq_exit
                apic_timer_interrupt
                slot_deform_tuple

     0.00%  postgres  [mpdh]                         [k] 0x0000000000010e76                       
            |
            --- 0xffffffffa0018e76
                run_timer_softirq
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] rb_next                                  
            |
            --- rb_next
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  postgres                       [.] tuplestore_gettuple                      
            |
            --- tuplestore_gettuple

     0.00%  postgres  [kernel.kallsyms]              [k] tick_sched_timer                         
            |
            --- tick_sched_timer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                slot_deform_tuple

     0.00%  postgres  [nf_conntrack]                 [k] tcp_packet                               
            |
            --- tcp_packet
                nf_conntrack_in
                ipv4_conntrack_in
                nf_iterate
                nf_hook_slow
                ip_rcv
                __netif_receive_skb
                process_backlog
                net_rx_action
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                do_IRQ
                ret_from_intr
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] tcp_data_queue                           
            |
            --- tcp_data_queue
                tcp_rcv_established
                tcp_v4_do_rcv
                tcp_v4_rcv
                ip_local_deliver_finish
                ip_local_deliver
                ip_rcv_finish
                ip_rcv
                __netif_receive_skb
                process_backlog
                net_rx_action
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                do_IRQ
                ret_from_intr
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] mem_cgroup_lru_del_list                  
            |
            --- mem_cgroup_lru_del_list
                activate_page
                mark_page_accessed
                unmap_vmas
                unmap_region
                do_munmap
                sys_munmap
                system_call
                __GI___munmap

     0.00%  postgres  postgres                       [.] ExecEvalAggref                           
            |
            --- ExecEvalAggref

     0.00%  postgres  [kernel.kallsyms]              [k] __run_hrtimer                            
            |
            --- __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  postgres                       [.] heap_fill_tuple                          
            |
            --- heap_fill_tuple

     0.00%  postgres  libc-2.12.so                   [.] memmove                                  
            |
            --- memmove
                (nil)

     0.00%  postgres  [kernel.kallsyms]              [k] radix_tree_lookup_slot                   
            |
            --- radix_tree_lookup_slot
                find_get_page
                find_lock_page
                shmem_getpage_gfp
                shmem_fault
                __do_fault
                handle_pte_fault
                handle_mm_fault
                __do_page_fault
                do_page_fault
                page_fault
                memcpy
                networkjoinsel

     0.00%  postgres  postgres                       [.] set_var_from_var                         
            |
            --- set_var_from_var
                (nil)

     0.00%  postgres  [kernel.kallsyms]              [k] page_fault                               
            |
            --- page_fault
                memcpy
                networkjoinsel

     0.00%  postgres  postgres                       [.] finalize_aggregate                       
            |
            --- finalize_aggregate

     0.00%  postgres  [kernel.kallsyms]              [k] __mem_cgroup_uncharge_common             
            |
            --- __mem_cgroup_uncharge_common
                mem_cgroup_uncharge_cache_page
                remove_from_page_cache
                truncate_inode_page
                shmem_truncate_range
                shmem_delete_inode
                generic_delete_inode
                iput
                do_unlinkat
                sys_unlink
                system_call
                __GI___unlink

     0.00%  postgres  [kernel.kallsyms]              [k] tick_dev_program_event                   
            |
            --- tick_dev_program_event
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                ExecAgg

     0.00%  postgres  [kernel.kallsyms]              [k] __wake_up_bit                            
            |
            --- __wake_up_bit
                unlock_page
                shmem_truncate_range
                shmem_delete_inode
                generic_delete_inode
                iput
                do_unlinkat
                sys_unlink
                system_call
                __GI___unlink

     0.00%  postgres  [kernel.kallsyms]              [k] shmem_fault                              
            |
            --- shmem_fault
                __do_fault
                handle_pte_fault
                handle_mm_fault
                __do_page_fault
                do_page_fault
                page_fault
                memcpy
                networkjoinsel

     0.00%  postgres  postgres                       [.] ProcessClientReadInterrupt               
            |
            --- ProcessClientReadInterrupt



#
# (For a higher level overview, try: perf report --sort comm,dso)
#
