# ========
# captured on: Tue Sep 22 15:17:59 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 = { 15 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# ========
#
# Samples: 26K of event 'cycles'
# Event count (approx.): 19217893664
#
# Overhead   Command                  Shared Object                                         Symbol
# ........  ........  .............................  .............................................
#
     9.28%  postgres  libc-2.12.so                   [.] memcpy                                   
            |
            --- memcpy
               |          
               |--96.85%-- networkjoinsel
                --3.15%-- [...]

     3.96%  postgres  postgres                       [.] slot_deform_tuple                        
            |
            --- slot_deform_tuple

     3.16%  postgres  postgres                       [.] hash_search_with_hash_value              
            |
            --- hash_search_with_hash_value
               |          
               |--4.03%-- 0x1d4108000000000
                --95.97%-- [...]

     3.00%  postgres  [kernel.kallsyms]              [k] _spin_lock                               
            |
            --- _spin_lock
               |          
               |--64.80%-- 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
               |          
               |--33.83%-- 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
                --1.37%-- [...]

     2.87%  postgres  postgres                       [.] shm_mq_inc_bytes_read                    
            |
            --- shm_mq_inc_bytes_read

     2.80%  postgres  [kernel.kallsyms]              [k] resched_task                             
            |
            --- resched_task
               |          
               |--97.05%-- 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
               |          
                --2.95%-- 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%  postgres  postgres                       [.] do_numeric_accum                         
            |
            --- do_numeric_accum
               |          
               |--93.49%-- 0x0
                --6.51%-- [...]

     2.39%  postgres  [kernel.kallsyms]              [k] task_curr                                
            |
            --- task_curr
               |          
               |--99.37%-- complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.63%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     2.27%  postgres  [kernel.kallsyms]              [k] try_to_wake_up                           
            |
            --- try_to_wake_up
               |          
               |--98.51%-- 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%-- 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

     2.25%  postgres  postgres                       [.] ExecProject                              
            |
            --- ExecProject

     2.22%  postgres  postgres                       [.] bpchareq                                 
            |
            --- bpchareq

     2.15%  postgres  postgres                       [.] add_abs                                  
            |
            --- add_abs

     1.98%  postgres  postgres                       [.] AllocSetAlloc                            
            |
            --- AllocSetAlloc
               |          
               |--16.86%-- networkjoinsel
                --83.14%-- [...]

     1.97%  postgres  [kernel.kallsyms]              [k] __send_signal                            
            |
            --- __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     1.96%  postgres  [kernel.kallsyms]              [k] enqueue_entity                           
            |
            --- enqueue_entity
               |          
               |--99.05%-- 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
               |          
                --0.95%-- 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

     1.57%  postgres  postgres                       [.] StrategyGetBuffer                        
            |
            --- StrategyGetBuffer

     1.55%  postgres  [kernel.kallsyms].vsyscall_fn  [.] vread_tsc                                
            |
            --- vread_tsc
               |          
               |--88.41%-- 0x7fff59744814
               |          0x7fff597448bc
               |          __gettimeofday
               |          
                --11.59%-- 0x7fff597448bc
                          __gettimeofday

     1.38%  postgres  [kernel.kallsyms]              [k] select_task_rq_fair                      
            |
            --- select_task_rq_fair
               |          
               |--99.46%-- 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
               |          
                --0.54%-- 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

     1.37%  postgres  [kernel.kallsyms]              [k] rb_reserve_next_event                    
            |
            --- rb_reserve_next_event
               |          
               |--97.81%-- ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--42.19%-- 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
               |          |          
               |          |--29.31%-- 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
               |          |          
               |          |--27.94%-- 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
               |          |          
               |           --0.56%-- ftrace_raw_event_id_softirq
               |                     |          
               |                     |--50.01%-- ftrace_raw_event_softirq_exit
               |                     |          __do_softirq
               |                     |          call_softirq
               |                     |          do_softirq
               |                     |          irq_exit
               |                     |          smp_apic_timer_interrupt
               |                     |          apic_timer_interrupt
               |                     |          AllocSetAlloc
               |                     |          
               |                      --49.99%-- ftrace_raw_event_softirq_entry
               |                                __do_softirq
               |                                call_softirq
               |                                do_softirq
               |                                irq_exit
               |                                smp_apic_timer_interrupt
               |                                apic_timer_interrupt
               |                                SetLatch
               |          
                --2.19%-- trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--50.00%-- 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
                          |          
                          |--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
                          |          
                           --12.49%-- 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

     1.37%  postgres  postgres                       [.] hash_any                                 
            |
            --- hash_any

     1.35%  postgres  postgres                       [.] make_result                              
            |
            --- make_result

     1.26%  postgres  postgres                       [.] advance_aggregates                       
            |
            --- advance_aggregates

     1.19%  postgres  [vdso]                         [.] 0x00007fff59744826                       
            |          
            |--10.70%-- 0x7fff5974481f
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--9.11%-- 0x7fff597448d4
            |          __gettimeofday
            |          
            |--6.92%-- 0x7fff5974482a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--5.67%-- 0x7fff59744826
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--4.41%-- 0x7fff59744890
            |          
            |--3.78%-- 0x7fff59744830
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.46%-- 0x7fff597448cd
            |          __gettimeofday
            |          
            |--3.46%-- 0x7fff59744814
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.15%-- 0x7fff597448c0
            |          __gettimeofday
            |          
            |--3.11%-- 0x7fff5974489b
            |          __gettimeofday
            |          
            |--2.83%-- 0x7fff597448d8
            |          __gettimeofday
            |          
            |--2.83%-- 0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.83%-- 0x7fff597447d1
            |          __gettimeofday
            |          
            |--2.83%-- 0x7fff5974483d
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.83%-- 0x7fff597448df
            |          __gettimeofday
            |          
            |--2.52%-- 0x7fff597448b2
            |          __gettimeofday
            |          
            |--2.52%-- 0x7fff597448e9
            |          __gettimeofday
            |          
            |--2.52%-- 0x7fff5974486a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.52%-- 0x7fff597448a4
            |          __gettimeofday
            |          
            |--2.20%-- 0x7fff59744806
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.89%-- 0x7fff597447ee
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.57%-- 0x7fff597447d6
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.57%-- 0x7fff59744872
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.57%-- 0x7fff597447d0
            |          __gettimeofday
            |          
            |--1.57%-- 0x7fff597448db
            |          __gettimeofday
            |          
            |--1.54%-- 0x7fff597447fc
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.26%-- 0x7fff597448b0
            |          __gettimeofday
            |          
            |--1.26%-- 0x7fff597447e4
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.94%-- 0x7fff597448a1
            |          __gettimeofday
            |          
            |--0.94%-- 0x7fff59744803
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.63%-- 0x7fff597448a7
            |          __gettimeofday
            |          
            |--0.63%-- 0x7fff597447d7
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.63%-- 0x7fff5974480a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.63%-- 0x7fff5974489d
            |          __gettimeofday
            |          
            |--0.63%-- 0x7fff597448d1
            |          __gettimeofday
             --2.52%-- [...]

     1.18%  postgres  [kernel.kallsyms]              [k] _spin_lock_irqsave                       
            |
            --- _spin_lock_irqsave
               |          
               |--96.83%-- lock_task_sighand
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.22%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--0.64%-- 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
               |          |          
               |          |--50.01%-- do_numeric_accum
               |          |          
               |           --49.99%-- do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
                --0.32%-- [...]

     1.14%  postgres  postgres                       [.] slot_getattr                             
            |
            --- slot_getattr

     1.08%  postgres  [kernel.kallsyms]              [k] complete_signal                          
            |
            --- complete_signal
               |          
               |--98.96%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.04%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     1.00%  postgres  [kernel.kallsyms]              [k] signal_wake_up                           
            |
            --- signal_wake_up
               |          
               |--96.25%-- complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --3.75%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

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

     0.92%  postgres  postgres                       [.] bcTruelen                                
            |
            --- bcTruelen

     0.88%  postgres  [kernel.kallsyms]              [k] __rb_reserve_next                        
            |
            --- __rb_reserve_next
               |          
               |--97.46%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--36.52%-- 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
               |          |          
               |          |--30.87%-- 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
               |          |          
               |          |--30.00%-- 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
               |          |          
               |          |--1.74%-- ftrace_raw_event_id_softirq
               |          |          |          
               |          |          |--50.02%-- 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%-- FunctionCall1Coll
               |          |          |          
               |          |           --49.98%-- 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
               |          |                     |          
               |          |                     |--50.01%-- ExecProcNode
               |          |                     |          
               |          |                      --49.99%-- do_send_sig_info
               |          |                                group_send_sig_info
               |          |                                kill_pid_info
               |          |                                sys_kill
               |          |                                system_call
               |          |                                __GI___kill
               |           --0.87%-- [...]
               |          
                --2.54%-- ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--50.00%-- 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
                          |          
                           --50.00%-- 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

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

     0.84%  postgres  [kernel.kallsyms]              [k] kmem_cache_alloc                         
            |
            --- kmem_cache_alloc
               |          
               |--99.10%-- __sigqueue_alloc
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.90%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

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

     0.81%  postgres  postgres                       [.] ExecStoreMinimalTuple                    
            |
            --- ExecStoreMinimalTuple

     0.81%  postgres  postgres                       [.] shm_mq_receive                           
            |
            --- shm_mq_receive

     0.80%  postgres  postgres                       [.] ExecClearTuple                           
            |
            --- ExecClearTuple

     0.79%  postgres  postgres                       [.] int64_to_numericvar                      
            |
            --- int64_to_numericvar

     0.77%  postgres  [kernel.kallsyms]              [k] __audit_syscall_exit                     
            |
            --- __audit_syscall_exit
               |          
               |--74.14%-- sysret_audit
               |          __GI___kill
               |          
                --25.86%-- __GI___kill

     0.76%  postgres  [kernel.kallsyms]              [k] lock_task_sighand                        
            |
            --- lock_task_sighand
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.76%  postgres  [kernel.kallsyms]              [k] ring_buffer_lock_reserve                 
            |
            --- ring_buffer_lock_reserve
               |          
               |--86.63%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--37.68%-- 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
               |          |          
               |          |--34.88%-- 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
               |          |          
               |           --27.44%-- 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
               |          
                --13.37%-- trace_current_buffer_lock_reserve
                          |          
                          |--59.26%-- 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
                          |          
                           --7.41%-- 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

     0.75%  postgres  [kernel.kallsyms]              [k] enqueue_task                             
            |
            --- enqueue_task
               |          
               |--97.02%-- 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
               |          
                --2.98%-- 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

     0.73%  postgres  [kernel.kallsyms]              [k] check_kill_permission                    
            |
            --- check_kill_permission
               |          
               |--97.96%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.04%-- kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.71%  postgres  postgres                       [.] pfree                                    
            |
            --- pfree

     0.70%  postgres  [kernel.kallsyms]              [k] trace_current_buffer_lock_reserve        
            |
            --- trace_current_buffer_lock_reserve
               |          
               |--87.63%-- 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
               |          
               |--8.07%-- 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
               |          
               |--1.61%-- __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
               |          
               |--1.07%-- 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
               |          
                --0.54%-- 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

     0.69%  postgres  [kernel.kallsyms]              [k] ftrace_trace_userstack                   
            |
            --- ftrace_trace_userstack
               |          
               |--78.26%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--40.28%-- 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
               |          |          
               |          |--31.94%-- 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
               |          |          
               |          |--27.08%-- 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_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
               |                     slot_deform_tuple
               |          
               |--17.94%-- 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
               |          
               |--2.17%-- 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
               |          
                --1.63%-- 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

     0.66%  postgres  postgres                       [.] palloc                                   
            |
            --- palloc
               |          
               |--18.64%-- networkjoinsel
                --81.36%-- [...]

     0.66%  postgres  postgres                       [.] SetLatch                                 
            |
            --- SetLatch

     0.66%  postgres  postgres                       [.] alloc_var                                
            |
            --- alloc_var

     0.65%  postgres  [kernel.kallsyms]              [k] __sigqueue_alloc                         
            |
            --- __sigqueue_alloc
               |          
               |--98.27%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.73%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.62%  postgres  postgres                       [.] slot_getsomeattrs                        
            |
            --- slot_getsomeattrs

     0.60%  postgres  postgres                       [.] init_var_from_num                        
            |
            --- init_var_from_num
               |          
               |--54.06%-- slot_getsomeattrs
               |          
                --45.94%-- 0x0

     0.59%  postgres  [kernel.kallsyms]              [k] native_read_tsc                          
            |
            --- native_read_tsc
               |          
               |--94.31%-- native_sched_clock
               |          sched_clock
               |          |          
               |          |--88.56%-- trace_clock_local
               |          |          rb_reserve_next_event
               |          |          ring_buffer_lock_reserve
               |          |          trace_buffer_lock_reserve
               |          |          trace_current_buffer_lock_reserve
               |          |          |          
               |          |          |--36.36%-- 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
               |          |          |          
               |          |          |--35.60%-- 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
               |          |          |          
               |          |          |--26.52%-- 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
               |          |          |          
               |          |          |--0.76%-- 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
               |          |          |          hash_search_with_hash_value
               |          |          |          
               |          |           --0.76%-- 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
               |          |          
               |           --11.44%-- sched_clock_cpu
               |                     update_rq_clock
               |                     |          
               |                     |--93.82%-- 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
               |                     |          
               |                      --6.18%-- scheduler_tick
               |                                update_process_times
               |                                tick_sched_timer
               |                                __run_hrtimer
               |                                hrtimer_interrupt
               |                                smp_apic_timer_interrupt
               |                                apic_timer_interrupt
               |                                StrategyGetBuffer
               |          
                --5.69%-- sched_clock
                          |          
                          |--66.67%-- trace_clock_local
                          |          rb_reserve_next_event
                          |          ring_buffer_lock_reserve
                          |          trace_buffer_lock_reserve
                          |          trace_current_buffer_lock_reserve
                          |          |          
                          |          |--50.00%-- 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
                          |          |          
                          |          |--33.34%-- 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
                          |          |          
                          |           --16.66%-- 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%-- 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

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

     0.58%  postgres  [kernel.kallsyms]              [k] _spin_unlock_irqrestore                  
            |
            --- _spin_unlock_irqrestore
               |          
               |--49.03%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--27.74%-- 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
               |          
               |--11.61%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --11.61%-- 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  [kernel.kallsyms]              [k] trace_buffer_lock_reserve                
            |
            --- trace_buffer_lock_reserve
               |          
               |--94.19%-- trace_current_buffer_lock_reserve
               |          |          
               |          |--65.11%-- 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
               |          |          
               |          |--30.10%-- 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
               |          |          
               |           --4.80%-- 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
               |          
               |--3.23%-- 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
               |          
               |--1.94%-- 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
               |          
                --0.65%-- 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

     0.57%  postgres  [kernel.kallsyms]              [k] update_rq_clock                          
            |
            --- update_rq_clock
               |          
               |--96.03%-- 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
               |          
                --3.97%-- 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%  postgres  [kernel.kallsyms]              [k] trace_clock_local                        
            |
            --- trace_clock_local
               |          
               |--87.92%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--39.70%-- 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
               |          |          
               |          |--35.11%-- 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
               |          |          
               |          |--24.43%-- 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
               |          |          
               |           --0.76%-- 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
               |                     do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
               |--8.73%-- ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--53.84%-- 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
               |          |          
               |          |--30.78%-- 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
               |          |          
               |           --15.39%-- 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
               |          
                --3.36%-- __rb_reserve_next
                          rb_reserve_next_event
                          ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--60.00%-- 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
                          |          
                          |--20.00%-- 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
                          |          
                           --20.00%-- 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

     0.51%  postgres  [kernel.kallsyms]              [k] update_curr                              
            |
            --- update_curr
               |          
               |--97.81%-- 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
               |          
                --2.19%-- task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--33.35%-- ExecProject
                          |          
                          |--33.33%-- int64_to_numericvar
                          |          
                           --33.32%-- memcpy

     0.49%  postgres  postgres                       [.] AllocSetFree                             
            |
            --- AllocSetFree

     0.49%  postgres  [kernel.kallsyms]              [k] task_waking_fair                         
            |
            --- task_waking_fair
               |          
               |--98.46%-- 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
               |          
                --1.54%-- 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  postgres                       [.] TupleHashTableHash                       
            |
            --- TupleHashTableHash
               |          
               |--23.26%-- 0x1d72000
                --76.74%-- [...]

     0.48%  postgres  postgres                       [.] int8_avg_accum                           
            |
            --- int8_avg_accum

     0.46%  postgres  [kernel.kallsyms]              [k] sys_kill                                 
            |
            --- sys_kill
               |          
               |--83.87%-- system_call
               |          __GI___kill
               |          
                --16.13%-- __GI___kill

     0.39%  postgres  postgres                       [.] ExecProcNode                             
            |
            --- ExecProcNode

     0.39%  postgres  [kernel.kallsyms]              [k] system_call                              
            |
            --- system_call
                __GI___kill

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

     0.36%  postgres  postgres                       [.] TupleQueueFunnelNext                     
            |
            --- TupleQueueFunnelNext

     0.36%  postgres  postgres                       [.] int4_sum                                 
            |
            --- int4_sum

     0.36%  postgres  postgres                       [.] LookupTupleHashEntry                     
            |
            --- LookupTupleHashEntry
               |          
               |--82.11%-- 0x1d4108000000000
                --17.89%-- [...]

     0.32%  postgres  [kernel.kallsyms]              [k] tracing_generic_entry_update             
            |
            --- tracing_generic_entry_update
               |          
               |--55.82%-- 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
               |          |          
               |          |--25.00%-- 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
               |          |          
               |          |--6.25%-- 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
               |          |          
               |           --2.08%-- 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
               |                     make_result
               |          
                --44.18%-- trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--42.11%-- 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
                          |          
                          |--34.21%-- 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
                          |          
                          |--21.05%-- 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
                          |          
                           --2.63%-- 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
                                     memcpy

     0.32%  postgres  [kernel.kallsyms]              [k] rb_end_commit                            
            |
            --- rb_end_commit
               |          
               |--91.86%-- ring_buffer_unlock_commit
               |          trace_nowake_buffer_unlock_commit
               |          |          
               |          |--43.03%-- 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
               |          |          
               |          |--30.38%-- 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
               |          |          
               |           --26.60%-- 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
               |          
                --8.14%-- trace_nowake_buffer_unlock_commit
                          |          
                          |--57.14%-- 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
                          |          
                          |--28.57%-- 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
                          |          
                           --14.29%-- 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

     0.31%  postgres  postgres                       [.] int8_numeric                             
            |
            --- int8_numeric

     0.31%  postgres  [kernel.kallsyms]              [k] ring_buffer_unlock_commit                
            |
            --- ring_buffer_unlock_commit
               |          
               |--82.13%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--43.51%-- 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
               |          |          
               |          |--30.38%-- 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
               |          |          
               |          |--24.66%-- 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
               |          |          
               |           --1.45%-- 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
               |          
               |--10.72%-- 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
               |          
               |--5.96%-- 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
               |          
                --1.19%-- 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

     0.31%  postgres  [kernel.kallsyms]              [k] pid_vnr                                  
            |
            --- pid_vnr
               |          
               |--97.59%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.41%-- system_call
                          __GI___kill

     0.31%  postgres  libc-2.12.so                   [.] __gettimeofday                           
            |
            --- __gettimeofday

     0.31%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_signal_generate         
            |
            --- ftrace_raw_event_signal_generate
               |          
               |--95.12%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --4.88%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.31%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_sched_stat_template  
            |
            --- 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

     0.30%  postgres  postgres                       [.] hashbpchar                               
            |
            --- hashbpchar

     0.30%  postgres  postgres                       [.] FunctionCall2Coll                        
            |
            --- FunctionCall2Coll

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

     0.29%  postgres  postgres                       [.] FunctionCall1Coll                        
            |
            --- FunctionCall1Coll

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

     0.28%  postgres  postgres                       [.] DirectFunctionCall1Coll                  
            |
            --- DirectFunctionCall1Coll

     0.28%  postgres  [kernel.kallsyms]              [k] audit_syscall_entry                      
            |
            --- audit_syscall_entry
               |          
               |--94.59%-- auditsys
               |          __GI___kill
               |          
                --5.41%-- __GI___kill

     0.26%  postgres  [kernel.kallsyms]              [k] group_send_sig_info                      
            |
            --- group_send_sig_info
               |          
               |--90.00%-- kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --10.00%-- sys_kill
                          system_call
                          __GI___kill

     0.26%  postgres  [kernel.kallsyms]              [k] trace_nowake_buffer_unlock_commit        
            |
            --- trace_nowake_buffer_unlock_commit
               |          
               |--69.57%-- 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
               |          
               |--10.14%-- 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
               |          
               |--7.25%-- 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
               |          
               |--5.80%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.90%-- 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
               |          
               |--2.90%-- 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
               |          
                --1.45%-- 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
                          memcpy

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

     0.25%  postgres  [kernel.kallsyms]              [k] select_idle_sibling                      
            |
            --- select_idle_sibling
               |          
               |--86.75%-- 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
               |          
                --13.25%-- 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

     0.25%  postgres  [kernel.kallsyms]              [k] check_preempt_curr                       
            |
            --- check_preempt_curr
               |          
               |--95.45%-- 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%-- 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  postgres                       [.] add_var                                  
            |
            --- add_var
               |          
               |--49.23%-- 0x0
                --50.77%-- [...]

     0.24%  postgres  [kernel.kallsyms]              [k] do_send_sig_info                         
            |
            --- do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.24%  postgres  [kernel.kallsyms]              [k] native_sched_clock                       
            |
            --- native_sched_clock
               |          
               |--76.19%-- sched_clock
               |          |          
               |          |--77.08%-- trace_clock_local
               |          |          rb_reserve_next_event
               |          |          ring_buffer_lock_reserve
               |          |          trace_buffer_lock_reserve
               |          |          trace_current_buffer_lock_reserve
               |          |          |          
               |          |          |--45.94%-- 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
               |          |          |          
               |          |          |--27.03%-- 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
               |          |          |          
               |          |           --27.02%-- 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
               |          |          
               |           --22.92%-- 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
               |          
               |--19.05%-- trace_clock_local
               |          rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--50.00%-- 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
               |          |          
               |          |--25.00%-- 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
               |          |          
               |           --24.99%-- 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
               |          
                --4.76%-- 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

     0.24%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_sched_wakeup_template
            |
            --- 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

     0.23%  postgres  [kernel.kallsyms]              [k] task_rq_lock                             
            |
            --- task_rq_lock
               |          
               |--95.16%-- 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
               |          
                --4.84%-- 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

     0.22%  postgres  [kernel.kallsyms]              [k] find_pid_ns                              
            |
            --- find_pid_ns
               |          
               |--86.67%-- find_vpid
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --13.33%-- sys_kill
                          system_call
                          __GI___kill

     0.21%  postgres  libc-2.12.so                   [.] __GI___kill                              
            |
            --- __GI___kill

     0.21%  postgres  [kernel.kallsyms]              [k] send_signal                              
            |
            --- send_signal
               |          
               |--92.73%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --7.27%-- group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

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

     0.20%  postgres  postgres                       [.] heap_copytuple                           
            |
            --- heap_copytuple
               |          
               |--77.36%-- networkjoinsel
                --22.64%-- [...]

     0.19%  postgres  [kernel.kallsyms]              [k] prepare_signal                           
            |
            --- prepare_signal
               |          
               |--94.12%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --5.88%-- 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] __list_add                               
            |
            --- __list_add
               |          
               |--59.57%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--36.17%-- 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
               |          
                --4.25%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

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

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

     0.16%  postgres  [kernel.kallsyms]              [k] enqueue_task_fair                        
            |
            --- enqueue_task_fair
               |          
               |--93.02%-- 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
               |          
                --6.98%-- 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

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

     0.16%  postgres  [kernel.kallsyms]              [k] update_cfs_shares                        
            |
            --- update_cfs_shares
               |          
               |--90.48%-- 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
               |          
               |--4.76%-- task_tick_fair
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.01%-- InstrStopNode
               |          |          
               |           --49.99%-- hash_search_with_hash_value
               |          
                --4.76%-- 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

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

     0.15%  postgres  [kernel.kallsyms]              [k] kill_pid_info                            
            |
            --- kill_pid_info
               |          
               |--90.00%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --10.00%-- system_call
                          __GI___kill

     0.15%  postgres  [kernel.kallsyms]              [k] ring_buffer_event_data                   
            |
            --- ring_buffer_event_data
               |          
               |--37.51%-- trace_current_buffer_lock_reserve
               |          |          
               |          |--39.99%-- 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_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
               |          |          
               |           --26.67%-- 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
               |          
               |--22.51%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--55.56%-- 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
               |          |          
               |          |--22.22%-- 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
               |          |          
               |           --22.22%-- 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
               |          
               |--10.00%-- 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
               |          
               |--10.00%-- 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
               |          
               |--7.50%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--4.98%-- 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
               |          
               |--2.50%-- 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
               |          shm_mq_inc_bytes_read
               |          
               |--2.50%-- 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
               |          
                --2.50%-- 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

     0.15%  postgres  [kernel.kallsyms]              [k] __task_pid_nr_ns                         
            |
            --- __task_pid_nr_ns
               |          
               |--97.50%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --2.50%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.15%  postgres  [kernel.kallsyms]              [k] rb_insert_color                          
            |
            --- rb_insert_color
               |          
               |--92.31%-- 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
               |          
                --7.69%-- 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                       [.] ExecStoreTuple                           
            |
            --- ExecStoreTuple

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

     0.14%  postgres  [kernel.kallsyms]              [k] effective_load                           
            |
            --- effective_load
               |          
               |--56.76%-- 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
               |          
                --43.24%-- 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

     0.12%  postgres  postgres                       [.] ExecStoreVirtualTuple                    
            |
            --- ExecStoreVirtualTuple

     0.12%  postgres  postgres                       [.] InstrStartNode                           
            |
            --- InstrStartNode

     0.12%  postgres  [kernel.kallsyms]              [k] trace_recursive_unlock                   
            |
            --- trace_recursive_unlock
               |          
               |--83.87%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--53.83%-- 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
               |          |          
               |          |--23.09%-- 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
               |          |          
               |          |--15.39%-- 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
               |          |          
               |           --7.70%-- 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
               |                     |          
               |                     |--50.01%-- do_numeric_accum
               |                     |          
               |                      --49.99%-- do_send_sig_info
               |                                group_send_sig_info
               |                                kill_pid_info
               |                                sys_kill
               |                                system_call
               |                                __GI___kill
               |          
                --16.13%-- ring_buffer_unlock_commit
                          trace_nowake_buffer_unlock_commit
                          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

     0.12%  postgres  postgres                       [.] hash_search                              
            |
            --- hash_search
               |          
               |--58.08%-- 0x1d4108000000000
               |          
                --41.92%-- 0x1d72000

     0.11%  postgres  [kernel.kallsyms]              [k] sysret_check                             
            |
            --- sysret_check
                __GI___kill

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

     0.08%  postgres  [kernel.kallsyms]              [k] task_active_pid_ns                       
            |
            --- task_active_pid_ns
               |          
               |--90.47%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --9.53%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] path_put                                 
            |
            --- path_put
               |          
               |--63.16%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___kill
               |          
                --36.84%-- sysret_audit
                          __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] kfree                                    
            |
            --- kfree
               |          
               |--63.15%-- sysret_audit
               |          __GI___kill
               |          
                --36.85%-- __audit_syscall_exit
                          sysret_audit
                          __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] filter_current_check_discard             
            |
            --- filter_current_check_discard
               |          
               |--26.32%-- 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
               |          
               |--21.06%-- 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
               |          
               |--15.80%-- 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
               |          
               |--15.79%-- 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
               |          
               |--10.51%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--5.26%-- 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
               |          
                --5.26%-- 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

     0.07%  postgres  [kernel.kallsyms]              [k] current_kernel_time                      
            |
            --- current_kernel_time
               |          
               |--55.55%-- audit_syscall_entry
               |          auditsys
               |          __GI___kill
               |          
                --44.45%-- auditsys
                          __GI___kill

     0.07%  postgres  [kernel.kallsyms]              [k] update_cfs_load                          
            |
            --- update_cfs_load
               |          
               |--88.88%-- 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
               |          
                --11.12%-- 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

     0.06%  postgres  [kernel.kallsyms]              [k] wake_up_state                            
            |
            --- wake_up_state
               |          
               |--62.50%-- complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --37.50%-- 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

     0.06%  postgres  [kernel.kallsyms]              [k] account_entity_enqueue                   
            |
            --- account_entity_enqueue
               |          
               |--68.73%-- 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
               |          
                --31.27%-- 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

     0.05%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_stat_sleep        
            |
            --- ftrace_raw_event_sched_stat_sleep
               |          
               |--78.57%-- 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
               |          
                --21.43%-- 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

     0.05%  postgres  [kernel.kallsyms]              [k] ret_from_sys_call                        
            |
            --- ret_from_sys_call
                __GI___kill

     0.05%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_wakeup            
            |
            --- ftrace_raw_event_sched_wakeup
               |          
               |--64.28%-- 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
               |          
                --35.72%-- 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] ftrace_trace_stack                       
            |
            --- ftrace_trace_stack
               |          
               |--46.15%-- 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
               |          
               |--23.08%-- 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
               |          
               |--23.07%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--33.34%-- 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
               |          |          
               |          |--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
               |          |          
               |           --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
               |          
                --7.69%-- 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

     0.04%  postgres  [kernel.kallsyms]              [k] scheduler_tick                           
            |
            --- scheduler_tick
               |          
               |--81.82%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--22.23%-- do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--22.22%-- memcpy
               |          |          
               |          |--11.11%-- ExecStoreMinimalTuple
               |          |          
               |          |--11.11%-- palloc
               |          |          
               |          |--11.11%-- __GI___kill
               |          |          
               |          |--11.11%-- advance_aggregates
               |          |          
               |           --11.11%-- shm_mq_receive
               |          
                --18.18%-- 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
                          |          
                           --49.99%-- AllocSetFree

     0.04%  postgres  [kernel.kallsyms]              [k] sysret_signal                            
            |
            --- sysret_signal
                __GI___kill

     0.04%  postgres  [kernel.kallsyms]              [k] unroll_tree_refs                         
            |
            --- unroll_tree_refs
                __audit_syscall_exit
                sysret_audit
                __GI___kill

     0.04%  postgres  [kernel.kallsyms]              [k] sched_clock                              
            |
            --- sched_clock
               |          
               |--90.04%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--55.74%-- 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
               |          |          
               |          |--33.19%-- 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
               |          |          
               |           --11.06%-- 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
               |          
                --9.96%-- 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

     0.04%  postgres  postgres                       [.] memcpy@plt                               
            |
            --- memcpy@plt
               |          
               |--60.00%-- networkjoinsel
                --40.00%-- [...]

     0.04%  postgres  [kernel.kallsyms]              [k] place_entity                             
            |
            --- place_entity
               |          
               |--70.01%-- 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
               |          
                --29.99%-- 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

     0.03%  postgres  [kernel.kallsyms]              [k] task_of                                  
            |
            --- task_of
               |          
               |--77.77%-- 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
               |          
                --22.23%-- 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

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

     0.03%  postgres  [kernel.kallsyms]              [k] sched_clock_cpu                          
            |
            --- sched_clock_cpu
               |          
               |--77.78%-- 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
               |          
                --22.22%-- 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] 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

     0.03%  postgres  [kernel.kallsyms]              [k] pid_task                                 
            |
            --- pid_task
               |          
               |--71.43%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --28.57%-- 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] apic_timer_interrupt                     
            |
            --- apic_timer_interrupt
               |          
               |--28.57%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--14.29%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--14.29%-- slot_deform_tuple
               |          
               |--14.29%-- memcpy
               |          
               |--14.29%-- vread_tsc
               |          
                --14.28%-- AllocSetAlloc

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

     0.02%  postgres  [kernel.kallsyms]              [k] dput                                     
            |
            --- dput
               |          
               |--50.00%-- path_put
               |          __audit_syscall_exit
               |          sysret_audit
               |          __GI___kill
               |          
                --50.00%-- __audit_syscall_exit
                          sysret_audit
                          __GI___kill

     0.02%  postgres  postgres                       [.] heap_freetuple                           
            |
            --- heap_freetuple

     0.02%  postgres  [kernel.kallsyms]              [k] find_next_bit                            
            |
            --- find_next_bit
               |          
               |--39.99%-- 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%-- 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%-- find_busiest_group
               |          rebalance_domains
               |          run_rebalance_domains
               |          __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
               |          
                --20.00%-- 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

     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

     0.01%  postgres  [kernel.kallsyms]              [k] find_vpid                                
            |
            --- find_vpid
                sys_kill
                system_call
                __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] __do_softirq                             
            |
            --- __do_softirq
                call_softirq
                do_softirq
                irq_exit
               |          
               |--75.00%-- smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.35%-- slot_deform_tuple
               |          |          
               |          |--33.33%-- do_numeric_accum
               |          |          
               |           --33.32%-- ExecAgg
               |          
                --25.00%-- do_IRQ
                          ret_from_intr
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] page_fault                               
            |
            --- page_fault
               |          
               |--75.00%-- memcpy
               |          |          
               |           --100.00%-- networkjoinsel
               |          
                --25.00%-- set_var_from_var
                          int8_avg_accum

     0.01%  postgres  [kernel.kallsyms]              [k] list_del                                 
            |
            --- list_del
               |          
               |--50.02%-- activate_page
               |          mark_page_accessed
               |          unmap_vmas
               |          unmap_region
               |          do_munmap
               |          sys_munmap
               |          system_call
               |          __GI___munmap
               |          
               |--25.00%-- __rmqueue
               |          get_page_from_freelist
               |          __alloc_pages_nodemask
               |          alloc_pages_vma
               |          handle_pte_fault
               |          handle_mm_fault
               |          __do_page_fault
               |          do_page_fault
               |          page_fault
               |          element_alloc
               |          
                --24.98%-- free_pcppages_bulk
                          free_hot_cold_page
                          __pagevec_free
                          release_pages
                          __pagevec_release
                          shmem_pagevec_release
                          shmem_truncate_range
                          shmem_delete_inode
                          generic_delete_inode
                          iput
                          do_unlinkat
                          sys_unlink
                          system_call
                          __GI___unlink

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

     0.01%  postgres  [kernel.kallsyms]              [k] native_apic_mem_write                    
            |
            --- native_apic_mem_write
                apic_timer_interrupt
               |          
               |--25.07%-- do_numeric_accum
               |          
               |--25.06%-- hash_any
               |          
               |--25.06%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --24.81%-- __GI___kill

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

     0.01%  postgres  [kernel.kallsyms]              [k] ktime_get                                
            |
            --- ktime_get
               |          
               |--66.68%-- tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- memcpy
               |          |          
               |           --50.00%-- 0x7fff597448d4
               |          
                --33.32%-- 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] do_softirq                               
            |
            --- do_softirq
               |          
               |--66.67%-- 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
               |          
                --33.33%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          hash_any

     0.01%  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
               |          
               |--33.34%-- ExecProcNode
               |          
               |--33.33%-- memcpy
               |          
                --33.32%-- int4_sum

     0.01%  postgres  [kernel.kallsyms]              [k] raise_softirq                            
            |
            --- raise_softirq
                rcu_check_callbacks
                update_process_times
                tick_sched_timer
                __run_hrtimer
                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%-- add_abs

     0.01%  postgres  [kernel.kallsyms]              [k] hrtimer_interrupt                        
            |
            --- hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.34%-- bpchareq
               |          
               |--33.33%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --33.33%-- memcpy

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

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_stat_runtime      
            |
            --- ftrace_raw_event_sched_stat_runtime
                update_curr
               |          
               |--66.67%-- task_tick_fair
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.01%-- hash_any
               |          |          
               |           --49.99%-- 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

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

     0.01%  postgres  postgres                       [.] gettimeofday@plt                         
            |
            --- gettimeofday@plt

     0.01%  postgres  [kernel.kallsyms]              [k] account_cfs_rq_runtime                   
            |
            --- account_cfs_rq_runtime
               |          
               |--66.67%-- update_curr
               |          |          
               |          |--50.01%-- task_tick_fair
               |          |          scheduler_tick
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          AllocSetAlloc
               |          |          
               |           --49.99%-- 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%-- task_tick_fair
                          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] cap_task_kill                            
            |
            --- cap_task_kill
               |          
               |--66.67%-- security_task_kill
               |          check_kill_permission
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --33.33%-- check_kill_permission
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

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

     0.01%  postgres  [kernel.kallsyms]              [k] default_send_IPI_mask_sequence_phys      
            |
            --- 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

     0.01%  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%-- shm_mq_inc_bytes_read
               |          
               |--33.33%-- memcpy
               |          
                --33.32%-- shm_mq_receive_bytes

     0.01%  postgres  [kernel.kallsyms]              [k] ret_from_intr                            
            |
            --- ret_from_intr
               |          
               |--50.01%-- vread_tsc
               |          
                --49.99%-- slot_deform_tuple

     0.01%  postgres  [kernel.kallsyms]              [k] smp_apic_timer_interrupt                 
            |
            --- smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- add_var
               |          
                --49.99%-- 0x7fff597448b2

     0.01%  postgres  [kernel.kallsyms]              [k] __run_hrtimer                            
            |
            --- __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%-- slot_deform_tuple

     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
               |          
               |--50.01%-- slot_deform_tuple
               |          
                --49.99%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] task_tick_fair                           
            |
            --- task_tick_fair
                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
               |          
                --49.99%-- slot_getattr

     0.01%  postgres  [kernel.kallsyms]              [k] kick_process                             
            |
            --- 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] rb_next                                  
            |
            --- rb_next
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- hash_search_with_hash_value
               |          
                --49.99%-- make_result

     0.01%  postgres  [kernel.kallsyms]              [k] call_softirq                             
            |
            --- call_softirq
               |          
               |--50.00%-- do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bpchareq
               |          
                --50.00%-- irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          AllocSetAlloc

     0.01%  postgres  [kernel.kallsyms]              [k] irq_exit                                 
            |
            --- irq_exit
               |          
               |--50.00%-- apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --50.00%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          add_abs

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_softirq              
            |
            --- ftrace_raw_event_id_softirq
               |          
               |--50.01%-- 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
               |          alloc_var
               |          
                --49.99%-- ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          pg_detoast_datum_packed

     0.01%  postgres  [kernel.kallsyms]              [k] __rcu_pending                            
            |
            --- __rcu_pending
               |          
               |--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%-- rcu_check_callbacks
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecProject

     0.01%  postgres  [kernel.kallsyms]              [k] activate_task                            
            |
            --- activate_task
               |          
               |--50.00%-- 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
               |          
                --50.00%-- 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

     0.01%  postgres  [kernel.kallsyms]              [k] hrtick_start_fair                        
            |
            --- hrtick_start_fair
               |          
               |--50.00%-- 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
               |          
                --50.00%-- 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

     0.01%  postgres  [kernel.kallsyms]              [k] cpumask_next_and                         
            |
            --- 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

     0.01%  postgres  [kernel.kallsyms]              [k] cache_alloc_refill                       
            |
            --- 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

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

     0.00%  postgres  [kernel.kallsyms]              [k] native_write_msr_safe                    
            |
            --- native_write_msr_safe
               |          
               |--99.73%-- x86_pmu_enable
               |          perf_pmu_enable
               |          perf_event_context_sched_in
               |          __perf_event_task_sched_in
               |          finish_task_switch
               |          thread_return
               |          schedule_hrtimeout_range
               |          poll_schedule_timeout
               |          do_select
               |          core_sys_select
               |          sys_select
               |          system_call
               |          __select
                --0.27%-- [...]

     0.00%  postgres  [kernel.kallsyms]              [k] skb_set_owner_r                          
            |
            --- skb_set_owner_r
                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
                StrategyGetBuffer

     0.00%  postgres  [kernel.kallsyms]              [k] tcp_v4_syn_recv_sock                     
            |
            --- tcp_v4_syn_recv_sock
                tcp_check_req
                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
                StrategyGetBuffer

     0.00%  postgres  [kernel.kallsyms]              [k] page_add_new_anon_rmap                   
            |
            --- page_add_new_anon_rmap
                handle_pte_fault
                handle_mm_fault
                __do_page_fault
                do_page_fault
                page_fault
                __memset_sse2

     0.00%  postgres  [kernel.kallsyms]              [k] physflat_send_IPI_mask                   
            |
            --- physflat_send_IPI_mask
                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] x86_pmu_disable                          
            |
            --- x86_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
                make_result

     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
                slot_getattr

     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
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     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
                AllocSetFree

     0.00%  postgres  [kernel.kallsyms]              [k] add_timer_randomness                     
            |
            --- add_timer_randomness
                add_disk_randomness
                blk_update_bidi_request
                blk_end_bidi_request
                blk_end_request
                scsi_io_completion
                scsi_finish_command
                scsi_softirq_done
                blk_done_softirq
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_call_function_single_interrupt
                call_function_single_interrupt
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] sched_clock_tick                         
            |
            --- sched_clock_tick
                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] save_args                                
            |
            --- save_args
                shm_mq_inc_bytes_read

     0.00%  postgres  [kernel.kallsyms]              [k] read_tsc                                 
            |
            --- read_tsc
                ktime_get_update_offsets
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                0x7fff597447f9

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_process_callbacks                    
            |
            --- rcu_process_callbacks
                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] jiffies_to_timeval                       
            |
            --- jiffies_to_timeval
                acct_update_integrals
                account_user_time
                account_process_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                memcpy

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

     0.00%  postgres  [kernel.kallsyms]              [k] run_timer_softirq                        
            |
            --- run_timer_softirq
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_numeric_accum

     0.00%  postgres  [kernel.kallsyms]              [k] hrtimer_run_pending                      
            |
            --- hrtimer_run_pending
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                hash_search_with_hash_value

     0.00%  postgres  [kernel.kallsyms]              [k] irq_entries_start                        
            |
            --- irq_entries_start
                bpchareq

     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
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.00%  postgres  [kernel.kallsyms]              [k] account_user_time                        
            |
            --- account_user_time
                account_process_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                LookupTupleHashEntry

     0.00%  postgres  [nf_conntrack]                 [k] death_by_timeout                         
            |
            --- death_by_timeout
                run_timer_softirq
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                advance_aggregates

     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
                memcpy

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_net_dev_xmit            
            |
            --- ftrace_raw_event_net_dev_xmit
                dev_hard_start_xmit
                sch_direct_xmit
                dev_queue_xmit
                0xffffffffa05a15bf
                dev_hard_start_xmit
                sch_direct_xmit
                dev_queue_xmit
                ip_finish_output
                ip_output
                ip_local_out
                ip_queue_xmit
                tcp_transmit_skb
                tcp_send_ack
                __tcp_ack_snd_check
                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
                bpchareq

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

     0.00%  postgres  [kernel.kallsyms]              [k] set_task_cpu                             
            |
            --- 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

     0.00%  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] idle_cpu                                 
            |
            --- idle_cpu
                smp_apic_timer_interrupt
                apic_timer_interrupt
                AllocSetAlloc

     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
                slot_deform_tuple

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_migrate_task      
            |
            --- 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

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_check_callbacks                      
            |
            --- 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

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

     0.00%  postgres  [kernel.kallsyms]              [k] unmap_vmas                               
            |
            --- unmap_vmas
                unmap_region
                do_munmap
                sys_brk
                system_call
                __brk

     0.00%  postgres  [kernel.kallsyms]              [k] schedule                                 
            |
            --- schedule
                schedule_hrtimeout_range
                poll_schedule_timeout
                do_sys_poll
                sys_poll
                system_call
                __poll
                0x72c4479b242c

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

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] free_pcppages_bulk                       
            |
            --- free_pcppages_bulk
                free_hot_cold_page
                __pagevec_free
                release_pages
                __pagevec_release
                shmem_pagevec_release
                shmem_truncate_range
                shmem_delete_inode
                generic_delete_inode
                iput
                do_unlinkat
                sys_unlink
                system_call
                __GI___unlink

     0.00%  postgres  [kernel.kallsyms]              [k] ip_route_input_slow                      
            |
            --- ip_route_input_slow
                ip_route_input
                ip_rcv_finish
                ip_rcv
                __netif_receive_skb
                netif_receive_skb
                napi_skb_finish
                napi_gro_receive
                ixgbe_poll
                net_rx_action
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                do_IRQ
                ret_from_intr
                slot_deform_tuple

     0.00%  postgres  [kernel.kallsyms]              [k] perf_pmu_rotate_start                    
            |
            --- perf_pmu_rotate_start
                __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



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