# ========
# captured on: Tue Sep 22 15:08:27 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 = { 11 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# ========
#
# Samples: 31K of event 'cycles'
# Event count (approx.): 22430111231
#
# Overhead   Command                  Shared Object                                         Symbol
# ........  ........  .............................  .............................................
#
     5.97%  postgres  postgres                       [.] slot_deform_tuple                        
            |
            --- slot_deform_tuple

     5.49%  postgres  postgres                       [.] HeapTupleSatisfiesMVCC                   
            |
            --- HeapTupleSatisfiesMVCC

     4.84%  postgres  postgres                       [.] hash_search_with_hash_value              
            |
            --- hash_search_with_hash_value
               |          
               |--2.12%-- 0x1d4108000000000
                --97.88%-- [...]

     4.64%  postgres  postgres                       [.] bcTruelen                                
            |
            --- bcTruelen

     3.48%  postgres  postgres                       [.] varstr_cmp                               
            |
            --- varstr_cmp

     3.36%  postgres  postgres                       [.] bpchareq                                 
            |
            --- bpchareq

     3.31%  postgres  libc-2.12.so                   [.] memcpy                                   
            |
            --- memcpy
               |          
               |--92.15%-- networkjoinsel
                --7.85%-- [...]

     2.74%  postgres  [kernel.kallsyms]              [k] copy_user_generic_string                 
            |
            --- copy_user_generic_string
                file_read_actor
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     2.45%  postgres  postgres                       [.] shm_mq_inc_bytes_read                    
            |
            --- shm_mq_inc_bytes_read

     2.38%  postgres  postgres                       [.] slot_getattr                             
            |
            --- slot_getattr

     2.14%  postgres  postgres                       [.] ExecMakeFunctionResultNoSets             
            |
            --- ExecMakeFunctionResultNoSets

     1.97%  postgres  postgres                       [.] ExecProject                              
            |
            --- ExecProject

     1.88%  postgres  postgres                       [.] heap_getnext                             
            |
            --- heap_getnext

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

     1.67%  postgres  postgres                       [.] add_abs                                  
            |
            --- add_abs

     1.44%  postgres  [kernel.kallsyms].vsyscall_fn  [.] vread_tsc                                
            |
            --- vread_tsc
               |          
               |--89.08%-- 0x7fff59744814
               |          0x7fff597448bc
               |          __gettimeofday
               |          
                --10.92%-- 0x7fff597448bc
                          __gettimeofday

     1.43%  postgres  postgres                       [.] StrategyGetBuffer                        
            |
            --- StrategyGetBuffer

     1.42%  postgres  postgres                       [.] hash_any                                 
            |
            --- hash_any

     1.39%  postgres  postgres                       [.] AllocSetAlloc                            
            |
            --- AllocSetAlloc
               |          
               |--10.39%-- networkjoinsel
                --89.61%-- [...]

     1.32%  postgres  postgres                       [.] bpcharle                                 
            |
            --- bpcharle

     1.25%  postgres  postgres                       [.] LWLockAcquire                            
            |
            --- LWLockAcquire

     1.20%  postgres  [kernel.kallsyms]              [k] _spin_lock                               
            |
            --- _spin_lock
               |          
               |--82.67%-- 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
               |          
               |--10.11%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.40%-- thread_return
               |          sys_semtimedop
               |          sys_semop
               |          system_call
               |          __GI___semop
               |          
               |--1.34%-- do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--39.98%-- LWLockAcquire
               |          |          
               |          |--20.01%-- bcTruelen
               |          |          
               |          |--20.01%-- add_var
               |          |          
               |           --20.00%-- do_numeric_accum
               |          
               |--1.34%-- scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--20.03%-- heap_getnext
               |          |          
               |          |--20.03%-- ExecClearTuple
               |          |          
               |          |--20.02%-- AllocSetAlloc
               |          |          
               |          |--20.02%-- ExecQual
               |          |          
               |           --19.90%-- ext4_llseek
               |                     vfs_llseek
               |                     sys_lseek
               |                     system_call
               |                     __GI___libc_lseek64
               |          
               |--0.80%-- 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
                --1.34%-- [...]

     1.13%  postgres  postgres                       [.] do_numeric_accum                         
            |
            --- do_numeric_accum
               |          
               |--88.04%-- 0x0
               |          
               |--0.57%-- slot_getsomeattrs
                --11.39%-- [...]

     1.11%  postgres  postgres                       [.] shm_mq_receive_bytes                     
            |
            --- shm_mq_receive_bytes

     1.03%  postgres  [kernel.kallsyms]              [k] task_curr                                
            |
            --- task_curr
               |          
               |--98.75%-- complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.25%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

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

     1.01%  postgres  postgres                       [.] make_result                              
            |
            --- make_result

     0.97%  postgres  [vdso]                         [.] 0x00007fff59744826                       
            |          
            |--8.60%-- 0x7fff5974481f
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--7.60%-- 0x7fff597448d4
            |          __gettimeofday
            |          
            |--7.28%-- 0x7fff5974482a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--6.95%-- 0x7fff59744826
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.97%-- 0x7fff59744814
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.64%-- 0x7fff59744890
            |          
            |--3.64%-- 0x7fff59744830
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.64%-- 0x7fff597448db
            |          __gettimeofday
            |          
            |--3.31%-- 0x7fff597448df
            |          __gettimeofday
            |          
            |--2.98%-- 0x7fff5974480a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.98%-- 0x7fff597448c0
            |          __gettimeofday
            |          
            |--2.65%-- 0x7fff597447d1
            |          __gettimeofday
            |          
            |--2.65%-- 0x7fff597448d8
            |          __gettimeofday
            |          
            |--2.65%-- 0x7fff597448cd
            |          __gettimeofday
            |          
            |--2.34%-- 0x7fff59744806
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.32%-- 0x7fff5974486a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.32%-- 0x7fff5974489b
            |          __gettimeofday
            |          
            |--1.99%-- 0x7fff597448a4
            |          __gettimeofday
            |          
            |--1.99%-- 0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.99%-- 0x7fff597447d7
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.99%-- 0x7fff59744872
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.99%-- 0x7fff597447d6
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.98%-- 0x7fff597447e4
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.66%-- 0x7fff597448b2
            |          __gettimeofday
            |          
            |--1.66%-- 0x7fff59744803
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.66%-- 0x7fff5974483d
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.66%-- 0x7fff597448d1
            |          __gettimeofday
            |          
            |--1.66%-- 0x7fff59744811
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.32%-- 0x7fff597447d0
            |          __gettimeofday
            |          
            |--1.32%-- 0x7fff597447fc
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.99%-- 0x7fff597448e9
            |          __gettimeofday
            |          
            |--0.99%-- 0x7fff5974489d
            |          __gettimeofday
            |          
            |--0.99%-- 0x7fff597448b7
            |          __gettimeofday
            |          
            |--0.66%-- 0x7fff597448b0
            |          __gettimeofday
            |          
            |--0.66%-- 0x7fff597447ee
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.66%-- 0x7fff59744898
             --2.65%-- [...]

     0.97%  postgres  postgres                       [.] ExecScan                                 
            |
            --- ExecScan

     0.96%  postgres  postgres                       [.] heap_parallelscan_nextpage               
            |
            --- heap_parallelscan_nextpage

     0.89%  postgres  postgres                       [.] advance_aggregates                       
            |
            --- advance_aggregates

     0.85%  postgres  postgres                       [.] SetLatch                                 
            |
            --- SetLatch

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

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

     0.77%  postgres  postgres                       [.] advance_transition_function              
            |
            --- advance_transition_function

     0.76%  postgres  postgres                       [.] heapgetpage                              
            |
            --- heapgetpage

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

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

     0.63%  postgres  postgres                       [.] ExecEvalScalarVarFast                    
            |
            --- ExecEvalScalarVarFast

     0.63%  postgres  postgres                       [.] int64_to_numericvar                      
            |
            --- int64_to_numericvar

     0.57%  postgres  [kernel.kallsyms]              [k] update_curr                              
            |
            --- update_curr
               |          
               |--98.32%-- 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
               |          
               |--1.12%-- task_tick_fair
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.12%-- HeapTupleSatisfiesMVCC
               |          |          
               |           --49.88%-- SetLatch
               |          
                --0.56%-- 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

     0.57%  postgres  postgres                       [.] ExecAgg                                  
            |
            --- ExecAgg

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

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

     0.55%  postgres  postgres                       [.] ExecEvalConst                            
            |
            --- ExecEvalConst

     0.54%  postgres  [kernel.kallsyms]              [k] __send_signal                            
            |
            --- __send_signal
               |          
               |--99.41%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.59%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.51%  postgres  [kernel.kallsyms]              [k] _spin_lock_irqsave                       
            |
            --- _spin_lock_irqsave
               |          
               |--96.85%-- lock_task_sighand
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--2.52%-- ntp_tick_length
               |          do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--25.04%-- int4_sum
               |          |          
               |          |--25.02%-- HeapTupleSatisfiesMVCC
               |          |          
               |          |--25.02%-- AllocSetReset
               |          |          
               |           --24.92%-- bpcharle
               |          
                --0.63%-- 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
                          varstr_cmp

     0.51%  postgres  [kernel.kallsyms]              [k] complete_signal                          
            |
            --- complete_signal
               |          
               |--99.43%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.57%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.50%  postgres  [kernel.kallsyms]              [k] find_get_page                            
            |
            --- find_get_page
               |          
               |--98.73%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --1.27%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.50%  postgres  postgres                       [.] palloc                                   
            |
            --- palloc
               |          
               |--12.91%-- networkjoinsel
                --87.09%-- [...]

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

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

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

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

     0.46%  postgres  [kernel.kallsyms]              [k] rb_reserve_next_event                    
            |
            --- rb_reserve_next_event
               |          
               |--81.86%-- ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--52.93%-- 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
               |          |          
               |          |--22.27%-- ftrace_raw_event_sched_stat_runtime
               |          |          update_curr
               |          |          |          
               |          |          |--92.32%-- enqueue_entity
               |          |          |          enqueue_task_fair
               |          |          |          enqueue_task
               |          |          |          activate_task
               |          |          |          try_to_wake_up
               |          |          |          wake_up_state
               |          |          |          signal_wake_up
               |          |          |          complete_signal
               |          |          |          __send_signal
               |          |          |          send_signal
               |          |          |          do_send_sig_info
               |          |          |          group_send_sig_info
               |          |          |          kill_pid_info
               |          |          |          sys_kill
               |          |          |          system_call
               |          |          |          __GI___kill
               |          |          |          
               |          |          |--3.84%-- task_tick_fair
               |          |          |          scheduler_tick
               |          |          |          update_process_times
               |          |          |          tick_sched_timer
               |          |          |          __run_hrtimer
               |          |          |          hrtimer_interrupt
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          make_result
               |          |          |          
               |          |           --3.84%-- put_prev_task_fair
               |          |                     schedule
               |          |                     sys_semtimedop
               |          |                     sys_semop
               |          |                     system_call
               |          |                     __GI___semop
               |          |          
               |          |--14.54%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--8.55%-- 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
               |          |          
               |           --1.71%-- ftrace_raw_event_id_softirq
               |                     |          
               |                     |--50.01%-- ftrace_raw_event_softirq_entry
               |                     |          __do_softirq
               |                     |          call_softirq
               |                     |          do_softirq
               |                     |          irq_exit
               |                     |          smp_apic_timer_interrupt
               |                     |          apic_timer_interrupt
               |                     |          bcTruelen
               |                     |          
               |                      --49.99%-- ftrace_raw_event_softirq_raise
               |                                raise_softirq
               |                                run_local_timers
               |                                update_process_times
               |                                tick_sched_timer
               |                                __run_hrtimer
               |                                hrtimer_interrupt
               |                                smp_apic_timer_interrupt
               |                                apic_timer_interrupt
               |                                s_lock
               |          
                --18.14%-- trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--92.29%-- 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
                          |          
                           --7.71%-- ftrace_raw_event_signal_generate
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.44%  postgres  postgres                       [.] check_stack_depth                        
            |
            --- check_stack_depth

     0.43%  postgres  [kernel.kallsyms]              [k] try_to_wake_up                           
            |
            --- try_to_wake_up
                wake_up_state
                signal_wake_up
                complete_signal
                __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.42%  postgres  [kernel.kallsyms]              [k] lock_task_sighand                        
            |
            --- lock_task_sighand
               |          
               |--99.24%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --0.76%-- group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.37%  postgres  postgres                       [.] int8_avg_accum                           
            |
            --- int8_avg_accum

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

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

     0.36%  postgres  postgres                       [.] init_var_from_num                        
            |
            --- init_var_from_num
               |          
               |--64.67%-- 0x0
               |          
                --35.33%-- slot_getsomeattrs

     0.35%  postgres  postgres                       [.] LWLockRelease                            
            |
            --- LWLockRelease

     0.35%  postgres  postgres                       [.] AllocSetReset                            
            |
            --- AllocSetReset

     0.33%  postgres  postgres                       [.] TupleHashTableHash                       
            |
            --- TupleHashTableHash
               |          
               |--20.38%-- 0x1d72000
                --79.62%-- [...]

     0.32%  postgres  postgres                       [.] ReadBuffer_common                        
            |
            --- ReadBuffer_common

     0.32%  postgres  postgres                       [.] DirectFunctionCall1Coll                  
            |
            --- DirectFunctionCall1Coll

     0.32%  postgres  postgres                       [.] PartialSeqNext                           
            |
            --- PartialSeqNext

     0.31%  postgres  postgres                       [.] FunctionCall2Coll                        
            |
            --- FunctionCall2Coll

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

     0.29%  postgres  [kernel.kallsyms]              [k] resched_task                             
            |
            --- resched_task
               |          
               |--97.78%-- 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
               |          
                --2.22%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.29%  postgres  [kernel.kallsyms]              [k] signal_wake_up                           
            |
            --- signal_wake_up
                complete_signal
                __send_signal
                send_signal
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.29%  postgres  postgres                       [.] pgstat_end_function_usage                
            |
            --- pgstat_end_function_usage
               |          
               |--3.37%-- 0xc23ab00497ac1
               |          
               |--2.25%-- 0xc27d700497ac1
               |          
               |--2.24%-- 0xc27da00497ac1
               |          
               |--1.13%-- 0xc870e00497ac1
               |          
               |--1.13%-- 0x2875200497ac1
               |          
               |--1.12%-- 0x16f9eb00497ac1
               |          
               |--1.12%-- 0x204400497ac1
               |          
               |--1.12%-- 0xf2e4d00497ac1
               |          
               |--1.12%-- 0x9056800497ac1
               |          
               |--1.12%-- 0x1df5f00497ac1
               |          
               |--1.12%-- 0xfc5ed00497ac1
               |          
               |--1.12%-- 0x13fdb700497ac1
               |          
               |--1.12%-- 0x80f8a00497ac1
               |          
               |--1.12%-- 0x94b6f00497ac1
               |          
               |--1.12%-- 0x70b8f00497ac1
               |          
               |--1.12%-- 0x17ffa800497ac1
               |          
               |--1.12%-- 0x129e4b00497ac1
               |          
               |--1.12%-- 0x17488a00497ac1
               |          
               |--1.12%-- 0x11515100497ac1
               |          
               |--1.12%-- 0x10aee600497ac1
               |          
               |--1.12%-- 0x30fd800497ac1
               |          
               |--1.12%-- 0x119e3600497ac1
               |          
               |--1.12%-- 0x7a6c200497ac1
               |          
               |--1.12%-- 0x14d96c00497ac1
               |          
               |--1.12%-- 0x5ec7500497ac1
               |          
               |--1.12%-- 0x150eb900497ac1
               |          
               |--1.12%-- 0x9302e00497ac1
               |          
               |--1.12%-- 0x113fc900497ac1
               |          
               |--1.12%-- 0xc23a400497ac1
               |          
               |--1.12%-- 0x12decb00497ac1
               |          
               |--1.12%-- 0xc27e500497ac1
               |          
               |--1.12%-- 0xdd7bf00497ac1
               |          
               |--1.12%-- 0xc27d900497ac1
               |          
               |--1.12%-- 0xc27e400497ac1
               |          
               |--1.12%-- 0xc27d100497ac1
               |          
               |--1.12%-- 0xc27df00497ac1
               |          
               |--1.12%-- 0xc27db00497ac1
               |          
               |--1.12%-- 0xc27e200497ac1
               |          
               |--1.12%-- 0xc27e100497ac1
               |          
               |--1.12%-- 0xbbe8900497ac1
               |          
               |--1.11%-- 0xc239600497ac1
                --49.45%-- [...]

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

     0.27%  postgres  postgres                       [.] UnpinBuffer.clone.0                      
            |
            --- UnpinBuffer.clone.0

     0.26%  postgres  [kernel.kallsyms]              [k] kmem_cache_alloc                         
            |
            --- kmem_cache_alloc
               |          
               |--98.78%-- __sigqueue_alloc
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.22%-- __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.26%  postgres  postgres                       [.] int4_sum                                 
            |
            --- int4_sum

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

     0.25%  postgres  [kernel.kallsyms]              [k] __audit_syscall_exit                     
            |
            --- __audit_syscall_exit
               |          
               |--69.46%-- sysret_audit
               |          |          
               |          |--72.25%-- __GI___kill
               |          |          
               |          |--14.79%-- __GI___libc_lseek64
               |          |          
               |           --12.96%-- __GI___libc_read
               |          
                --30.54%-- __GI___kill

     0.24%  postgres  [kernel.kallsyms]              [k] mutex_unlock                             
            |
            --- mutex_unlock
               |          
               |--96.01%-- ext4_llseek
               |          vfs_llseek
               |          sys_lseek
               |          system_call
               |          __GI___libc_lseek64
               |          
                --3.99%-- vfs_llseek
                          sys_lseek
                          system_call
                          __GI___libc_lseek64

     0.24%  postgres  postgres                       [.] MemoryContextReset                       
            |
            --- MemoryContextReset

     0.23%  postgres  postgres                       [.] int8_numeric                             
            |
            --- int8_numeric

     0.22%  postgres  [kernel.kallsyms]              [k] enqueue_task                             
            |
            --- enqueue_task
               |          
               |--98.53%-- activate_task
               |          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%-- wake_up_process
               |                     update_queue
               |                     sys_semtimedop
               |                     sys_semop
               |                     system_call
               |                     __GI___semop
               |          
                --1.47%-- try_to_wake_up
                          wake_up_state
                          signal_wake_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] system_call                              
            |
            --- system_call
               |          
               |--51.42%-- __GI___kill
               |          
               |--28.00%-- __GI___libc_read
               |          
                --20.59%-- __GI___libc_lseek64

     0.21%  postgres  postgres                       [.] LookupTupleHashEntry                     
            |
            --- LookupTupleHashEntry
               |          
               |--75.76%-- 0x1d4108000000000
                --24.24%-- [...]

     0.21%  postgres  [kernel.kallsyms]              [k] _spin_unlock_irqrestore                  
            |
            --- _spin_unlock_irqrestore
               |          
               |--63.64%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--22.72%-- 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
               |          
               |--9.09%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--3.03%-- wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.52%-- cpu_quiet_msk
                          __rcu_process_callbacks
                          rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_getattr

     0.21%  postgres  postgres                       [.] InstrStopNode                            
            |
            --- InstrStopNode

     0.21%  postgres  [kernel.kallsyms]              [k] put_page                                 
            |
            --- put_page
               |          
               |--98.46%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --1.54%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.20%  postgres  postgres                       [.] heap_copytuple                           
            |
            --- heap_copytuple
               |          
               |--79.36%-- networkjoinsel
                --20.64%-- [...]

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

     0.20%  postgres  [kernel.kallsyms]              [k] mutex_lock                               
            |
            --- mutex_lock
               |          
               |--98.35%-- ext4_llseek
               |          vfs_llseek
               |          sys_lseek
               |          system_call
               |          __GI___libc_lseek64
               |          
                --1.65%-- vfs_llseek
                          sys_lseek
                          system_call
                          __GI___libc_lseek64

     0.20%  postgres  [kernel.kallsyms]              [k] __sigqueue_alloc                         
            |
            --- __sigqueue_alloc
               |          
               |--98.36%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.64%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.19%  postgres  [kernel.kallsyms]              [k] __rb_reserve_next                        
            |
            --- __rb_reserve_next
               |          
               |--91.67%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--27.33%-- 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
               |          |          
               |          |--27.25%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--25.43%-- ftrace_raw_event_id_sched_wakeup_template
               |          |          ftrace_raw_event_sched_wakeup
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--12.72%-- 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
               |          |          
               |           --7.27%-- ftrace_raw_event_id_softirq
               |                     |          
               |                     |--50.03%-- 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
               |                     |          |          
               |                     |          |--50.00%-- HeapTupleSatisfiesMVCC
               |                     |          |          
               |                     |           --50.00%-- 0x7fff597448d4
               |                     |          
               |                      --49.97%-- ftrace_raw_event_softirq_entry
               |                                __do_softirq
               |                                call_softirq
               |                                do_softirq
               |                                irq_exit
               |                                smp_apic_timer_interrupt
               |                                apic_timer_interrupt
               |                                |          
               |                                |--50.03%-- advance_transition_function
               |                                |          
               |                                 --49.97%-- shm_mq_inc_bytes_read
               |          
                --8.33%-- ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--39.98%-- 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
                          |          
                          |--20.01%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                          |--20.01%-- 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
                          |          shm_mq_receive_bytes
                          |          
                           --20.00%-- 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

     0.18%  postgres  [kernel.kallsyms]              [k] task_rq_lock                             
            |
            --- task_rq_lock
               |          
               |--98.18%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --1.82%-- wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.18%  postgres  [kernel.kallsyms]              [k] enqueue_entity                           
            |
            --- 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

     0.17%  postgres  libc-2.12.so                   [.] __gettimeofday                           
            |
            --- __gettimeofday

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

     0.17%  postgres  postgres                       [.] FunctionCall1Coll                        
            |
            --- FunctionCall1Coll

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

     0.16%  postgres  postgres                       [.] add_var                                  
            |
            --- add_var
               |          
               |--64.73%-- 0x0
                --35.27%-- [...]

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

     0.16%  postgres  [kernel.kallsyms]              [k] native_read_tsc                          
            |
            --- native_read_tsc
               |          
               |--87.72%-- native_sched_clock
               |          sched_clock
               |          |          
               |          |--86.00%-- trace_clock_local
               |          |          |          
               |          |          |--97.53%-- rb_reserve_next_event
               |          |          |          ring_buffer_lock_reserve
               |          |          |          trace_buffer_lock_reserve
               |          |          |          trace_current_buffer_lock_reserve
               |          |          |          |          
               |          |          |          |--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
               |          |          |          |          
               |          |          |          |--27.99%-- 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
               |          |          |          |          
               |          |          |          |--27.54%-- ftrace_raw_event_id_sched_stat_template
               |          |          |          |          ftrace_raw_event_sched_stat_sleep
               |          |          |          |          enqueue_entity
               |          |          |          |          enqueue_task_fair
               |          |          |          |          enqueue_task
               |          |          |          |          activate_task
               |          |          |          |          try_to_wake_up
               |          |          |          |          wake_up_state
               |          |          |          |          signal_wake_up
               |          |          |          |          complete_signal
               |          |          |          |          __send_signal
               |          |          |          |          send_signal
               |          |          |          |          do_send_sig_info
               |          |          |          |          group_send_sig_info
               |          |          |          |          kill_pid_info
               |          |          |          |          sys_kill
               |          |          |          |          system_call
               |          |          |          |          __GI___kill
               |          |          |          |          
               |          |          |          |--8.34%-- 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
               |          |          |          |          
               |          |          |           --2.78%-- 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
               |          |          |                     file_read_actor
               |          |          |                     generic_file_aio_read
               |          |          |                     do_sync_read
               |          |          |                     vfs_read
               |          |          |                     sys_read
               |          |          |                     system_call
               |          |          |                     __GI___libc_read
               |          |          |          
               |          |           --2.47%-- __rb_reserve_next
               |          |                     rb_reserve_next_event
               |          |                     ring_buffer_lock_reserve
               |          |                     trace_buffer_lock_reserve
               |          |                     trace_current_buffer_lock_reserve
               |          |                     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
               |          |          
               |           --14.00%-- sched_clock_cpu
               |                     update_rq_clock
               |                     |          
               |                     |--83.33%-- 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
               |                     |          
               |                      --16.67%-- scheduler_tick
               |                                update_process_times
               |                                tick_sched_timer
               |                                __run_hrtimer
               |                                hrtimer_interrupt
               |                                smp_apic_timer_interrupt
               |                                apic_timer_interrupt
               |                                slot_deform_tuple
               |          
                --12.28%-- sched_clock
                          trace_clock_local
                          rb_reserve_next_event
                          ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--83.33%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --16.67%-- 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

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

     0.15%  postgres  [ext4]                         [k] ext4_llseek                              
            |
            --- ext4_llseek
               |          
               |--97.87%-- vfs_llseek
               |          sys_lseek
               |          system_call
               |          __GI___libc_lseek64
               |          
                --2.13%-- sys_lseek
                          system_call
                          __GI___libc_lseek64

     0.15%  postgres  [kernel.kallsyms]              [k] ring_buffer_lock_reserve                 
            |
            --- ring_buffer_lock_reserve
               |          
               |--91.31%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--42.89%-- 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
               |          |          
               |          |--26.17%-- 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
               |          |          
               |          |--23.80%-- 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
               |          |          
               |          |--4.76%-- 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
               |          |          
               |           --2.38%-- 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
               |                     slot_getattr
               |          
                --8.69%-- trace_current_buffer_lock_reserve
                          |          
                          |--50.02%-- 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
                          |          
                           --49.98%-- 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

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

     0.15%  postgres  [kernel.kallsyms]              [k] select_task_rq_fair                      
            |
            --- 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

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

     0.14%  postgres  [kernel.kallsyms]              [k] radix_tree_lookup_slot                   
            |
            --- radix_tree_lookup_slot
               |          
               |--88.39%-- find_get_page
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --11.61%-- generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.13%  postgres  [kernel.kallsyms]              [k] generic_file_aio_read                    
            |
            --- generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.13%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_signal_generate         
            |
            --- ftrace_raw_event_signal_generate
               |          
               |--92.65%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --7.35%-- send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.13%  postgres  [kernel.kallsyms]              [k] audit_syscall_entry                      
            |
            --- audit_syscall_entry
               |          
               |--97.50%-- auditsys
               |          |          
               |          |--64.14%-- __GI___kill
               |          |          
               |          |--23.05%-- __GI___libc_read
               |          |          
               |          |--10.24%-- __GI___libc_lseek64
               |          |          
               |           --2.56%-- __GI___semop
               |          
                --2.50%-- __GI___libc_lseek64

     0.12%  postgres  [kernel.kallsyms]              [k] trace_clock_local                        
            |
            --- trace_clock_local
               |          
               |--84.59%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--33.42%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--18.23%-- 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
               |          |          |          |          
               |          |          |          |--33.36%-- heap_copytuple
               |          |          |          |          
               |          |          |          |--33.33%-- heap_page_prune_opt
               |          |          |          |          
               |          |          |           --33.31%-- s_lock
               |          |          |          
               |          |          |--33.33%-- ftrace_raw_event_softirq_raise
               |          |          |          raise_softirq
               |          |          |          |          
               |          |          |          |--50.01%-- rcu_check_callbacks
               |          |          |          |          update_process_times
               |          |          |          |          tick_sched_timer
               |          |          |          |          __run_hrtimer
               |          |          |          |          hrtimer_interrupt
               |          |          |          |          smp_apic_timer_interrupt
               |          |          |          |          apic_timer_interrupt
               |          |          |          |          advance_transition_function
               |          |          |          |          
               |          |          |           --49.99%-- run_local_timers
               |          |          |                     update_process_times
               |          |          |                     tick_sched_timer
               |          |          |                     __run_hrtimer
               |          |          |                     hrtimer_interrupt
               |          |          |                     smp_apic_timer_interrupt
               |          |          |                     apic_timer_interrupt
               |          |          |                     HeapTupleSatisfiesMVCC
               |          |          |          
               |          |           --16.65%-- ftrace_raw_event_softirq_entry
               |          |                     __do_softirq
               |          |                     call_softirq
               |          |                     do_softirq
               |          |                     irq_exit
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     hash_search
               |          |          
               |          |--17.92%-- 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
               |          |          
               |          |--15.23%-- ftrace_raw_event_sched_stat_runtime
               |          |          update_curr
               |          |          |          
               |          |          |--60.08%-- 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
               |          |          |          
               |          |           --39.92%-- task_tick_fair
               |          |                     scheduler_tick
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     |          
               |          |                     |--50.03%-- ExecEvalScalarVarFast
               |          |                     |          
               |          |                      --49.97%-- file_read_actor
               |          |                                generic_file_aio_read
               |          |                                do_sync_read
               |          |                                vfs_read
               |          |                                sys_read
               |          |                                system_call
               |          |                                __GI___libc_read
               |          |          
               |           --15.19%-- 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
               |          
                --15.41%-- ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          |          
                          |--50.02%-- 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
                          |          
                           --49.98%-- 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                       [.] ExecStoreVirtualTuple                    
            |
            --- ExecStoreVirtualTuple

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

     0.11%  postgres  [kernel.kallsyms]              [k] ftrace_trace_userstack                   
            |
            --- ftrace_trace_userstack
               |          
               |--79.94%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--39.05%-- 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
               |          |          
               |          |--28.68%-- 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
               |          |          
               |          |--25.09%-- 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
               |          |          
               |           --7.17%-- 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
               |          
               |--11.46%-- ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--5.73%-- 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
               |          
                --2.87%-- 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

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

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

     0.10%  postgres  [kernel.kallsyms]              [k] rb_end_commit                            
            |
            --- rb_end_commit
               |          
               |--90.00%-- ring_buffer_unlock_commit
               |          trace_nowake_buffer_unlock_commit
               |          |          
               |          |--40.73%-- 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
               |          |          
               |          |--29.64%-- 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
               |          |          
               |          |--18.52%-- 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
               |          |          
               |          |--7.41%-- ftrace_raw_event_id_softirq
               |          |          |          
               |          |          |--50.01%-- ftrace_raw_event_softirq_entry
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          init_var_from_num
               |          |          |          
               |          |           --49.99%-- ftrace_raw_event_softirq_raise
               |          |                     raise_softirq
               |          |                     rcu_check_callbacks
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     int4_sum
               |          |          
               |           --3.71%-- 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
               |          
                --10.00%-- trace_nowake_buffer_unlock_commit
                          |          
                          |--66.69%-- 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
                          |          
                           --33.31%-- ftrace_raw_event_sched_stat_runtime
                                     update_curr
                                     enqueue_entity
                                     enqueue_task_fair
                                     enqueue_task
                                     activate_task
                                     try_to_wake_up
                                     wake_up_state
                                     signal_wake_up
                                     complete_signal
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

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

     0.09%  postgres  postgres                       [.] hash_search                              
            |
            --- hash_search
               |          
               |--58.62%-- 0x1d72000
               |          
                --41.38%-- 0x1d4108000000000

     0.09%  postgres  [kernel.kallsyms]              [k] sysret_check                             
            |
            --- sysret_check
               |          
               |--74.99%-- __GI___kill
               |          
               |--14.28%-- __GI___libc_read
               |          
                --10.73%-- __GI___libc_lseek64

     0.09%  postgres  [kernel.kallsyms]              [k] sys_kill                                 
            |
            --- sys_kill
               |          
               |--88.82%-- system_call
               |          __GI___kill
               |          
                --11.18%-- __GI___kill

     0.09%  postgres  [kernel.kallsyms]              [k] tracing_generic_entry_update             
            |
            --- tracing_generic_entry_update
               |          
               |--55.56%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--33.31%-- 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
               |          |          
               |          |--26.64%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--20.07%-- ftrace_raw_event_sched_stat_runtime
               |          |          update_curr
               |          |          |          
               |          |          |--66.82%-- 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
               |          |          |          
               |          |           --33.18%-- put_prev_task_fair
               |          |                     schedule
               |          |                     sys_semtimedop
               |          |                     sys_semop
               |          |                     system_call
               |          |                     __GI___semop
               |          |          
               |          |--13.31%-- ftrace_raw_event_id_softirq
               |          |          ftrace_raw_event_softirq_entry
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          |          
               |          |          |--50.00%-- free_var
               |          |          |          
               |          |           --50.00%-- ext4_llseek
               |          |                     vfs_llseek
               |          |                     sys_lseek
               |          |                     system_call
               |          |                     __GI___libc_lseek64
               |          |          
               |           --6.66%-- 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
               |          
                --44.44%-- trace_current_buffer_lock_reserve
                          |          
                          |--66.65%-- ftrace_raw_event_id_sched_wakeup_template
                          |          ftrace_raw_event_sched_wakeup
                          |          try_to_wake_up
                          |          |          
                          |          |--87.51%-- 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
                          |          |          
                          |           --12.49%-- wake_up_process
                          |                     update_queue
                          |                     sys_semtimedop
                          |                     sys_semop
                          |                     system_call
                          |                     __GI___semop
                          |          
                          |--16.68%-- 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
                          |          
                          |--8.33%-- ftrace_raw_event_signal_generate
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --8.33%-- ftrace_raw_event_sched_stat_runtime
                                     update_curr
                                     enqueue_entity
                                     enqueue_task_fair
                                     enqueue_task
                                     activate_task
                                     try_to_wake_up
                                     wake_up_state
                                     signal_wake_up
                                     complete_signal
                                     __send_signal
                                     send_signal
                                     do_send_sig_info
                                     group_send_sig_info
                                     kill_pid_info
                                     sys_kill
                                     system_call
                                     __GI___kill

     0.08%  postgres  [kernel.kallsyms]              [k] check_kill_permission                    
            |
            --- check_kill_permission
               |          
               |--96.01%-- group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --3.99%-- kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.08%  postgres  [kernel.kallsyms]              [k] native_sched_clock                       
            |
            --- native_sched_clock
               |          
               |--47.99%-- sched_clock
               |          |          
               |          |--75.00%-- trace_clock_local
               |          |          |          
               |          |          |--88.90%-- rb_reserve_next_event
               |          |          |          ring_buffer_lock_reserve
               |          |          |          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
               |          |          |          |          
               |          |          |          |--12.51%-- 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
               |          |          |          |          
               |          |          |          |--12.50%-- 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
               |          |          |          |          
               |          |          |          |--12.49%-- 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
               |          |          |          |          
               |          |          |           --12.49%-- 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
               |          |          |                     make_result
               |          |          |          
               |          |           --11.10%-- __rb_reserve_next
               |          |                     rb_reserve_next_event
               |          |                     ring_buffer_lock_reserve
               |          |                     trace_buffer_lock_reserve
               |          |                     trace_current_buffer_lock_reserve
               |          |                     ftrace_raw_event_id_sched_stat_template
               |          |                     ftrace_raw_event_sched_stat_sleep
               |          |                     enqueue_entity
               |          |                     enqueue_task_fair
               |          |                     enqueue_task
               |          |                     activate_task
               |          |                     try_to_wake_up
               |          |                     wake_up_state
               |          |                     signal_wake_up
               |          |                     complete_signal
               |          |                     __send_signal
               |          |                     send_signal
               |          |                     do_send_sig_info
               |          |                     group_send_sig_info
               |          |                     kill_pid_info
               |          |                     sys_kill
               |          |                     system_call
               |          |                     __GI___kill
               |          |          
               |           --25.00%-- 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
               |          
               |--43.97%-- trace_clock_local
               |          rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          |          
               |          |--45.47%-- ftrace_raw_event_signal_generate
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--27.27%-- 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
               |          |          
               |          |--9.09%-- 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
               |          |          
               |          |--9.09%-- ftrace_raw_event_id_softirq
               |          |          ftrace_raw_event_softirq_raise
               |          |          raise_softirq
               |          |          run_local_timers
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          LWLockAcquire
               |          |          
               |           --9.08%-- 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
               |          
                --8.04%-- 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

     0.08%  postgres  [kernel.kallsyms]              [k] check_preempt_wakeup                     
            |
            --- check_preempt_wakeup
               |          
               |--72.00%-- 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
               |          
                --28.00%-- check_preempt_curr
                          try_to_wake_up
                          |          
                          |--85.74%-- wake_up_state
                          |          signal_wake_up
                          |          complete_signal
                          |          __send_signal
                          |          send_signal
                          |          do_send_sig_info
                          |          group_send_sig_info
                          |          kill_pid_info
                          |          sys_kill
                          |          system_call
                          |          __GI___kill
                          |          
                           --14.26%-- wake_up_process
                                     update_queue
                                     sys_semtimedop
                                     sys_semop
                                     system_call
                                     __GI___semop

     0.08%  postgres  [kernel.kallsyms]              [k] ring_buffer_unlock_commit                
            |
            --- ring_buffer_unlock_commit
               |          
               |--96.00%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--45.84%-- 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
               |          |          
               |          |--20.83%-- 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
               |          |          
               |          |--16.66%-- ftrace_raw_event_id_softirq
               |          |          |          
               |          |          |--49.96%-- ftrace_raw_event_softirq_entry
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          |          
               |          |          |          |--50.03%-- StrategyGetBuffer
               |          |          |          |          
               |          |          |           --49.97%-- varstr_cmp
               |          |          |          
               |          |          |--25.02%-- ftrace_raw_event_softirq_exit
               |          |          |          __do_softirq
               |          |          |          call_softirq
               |          |          |          do_softirq
               |          |          |          irq_exit
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          pfree
               |          |          |          
               |          |           --25.02%-- 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
               |          |          
               |          |--12.49%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |           --4.17%-- 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
               |          
                --4.00%-- 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

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

     0.08%  postgres  [kernel.kallsyms]              [k] vfs_read                                 
            |
            --- vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.08%  postgres  [kernel.kallsyms]              [k] sys_read                                 
            |
            --- sys_read
               |          
               |--64.01%-- system_call
               |          __GI___libc_read
               |          
                --35.99%-- __GI___libc_read

     0.08%  postgres  [kernel.kallsyms]              [k] trace_current_buffer_lock_reserve        
            |
            --- trace_current_buffer_lock_reserve
               |          
               |--45.66%-- ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--24.88%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--8.54%-- 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
               |          
               |--8.30%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--4.31%-- 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
               |          
               |--4.15%-- 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
               |          
                --4.15%-- ftrace_raw_event_sched_stat_runtime
                          update_curr
                          enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.08%  postgres  [kernel.kallsyms]              [k] enqueue_task_fair                        
            |
            --- enqueue_task_fair
               |          
               |--91.64%-- 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
               |          
                --8.36%-- activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.07%  postgres  libc-2.12.so                   [.] __memcmp_sse4_1                          
            |
            --- __memcmp_sse4_1

     0.07%  postgres  [kernel.kallsyms]              [k] pid_vnr                                  
            |
            --- pid_vnr
               |          
               |--95.64%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --4.36%-- system_call
                          __GI___kill

     0.06%  postgres  postgres                       [.] InstrStartNode                           
            |
            --- InstrStartNode

     0.05%  postgres  postgres                       [.] ReadBufferExtended                       
            |
            --- ReadBufferExtended

     0.05%  postgres  [kernel.kallsyms]              [k] trace_buffer_lock_reserve                
            |
            --- trace_buffer_lock_reserve
               |          
               |--88.24%-- trace_current_buffer_lock_reserve
               |          |          
               |          |--53.34%-- ftrace_raw_event_id_sched_stat_template
               |          |          ftrace_raw_event_sched_stat_sleep
               |          |          enqueue_entity
               |          |          enqueue_task_fair
               |          |          enqueue_task
               |          |          activate_task
               |          |          try_to_wake_up
               |          |          wake_up_state
               |          |          signal_wake_up
               |          |          complete_signal
               |          |          __send_signal
               |          |          send_signal
               |          |          do_send_sig_info
               |          |          group_send_sig_info
               |          |          kill_pid_info
               |          |          sys_kill
               |          |          system_call
               |          |          __GI___kill
               |          |          
               |          |--26.65%-- 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
               |          |          
               |          |--6.67%-- 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
               |          |          
               |          |--6.67%-- 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
               |          |          add_abs
               |          |          
               |           --6.67%-- 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
               |          
               |--5.88%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --5.88%-- ftrace_raw_event_signal_generate
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.05%  postgres  [kernel.kallsyms]              [k] trace_recursive_unlock                   
            |
            --- trace_recursive_unlock
               |          
               |--76.21%-- trace_nowake_buffer_unlock_commit
               |          |          
               |          |--46.04%-- 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
               |          |          
               |          |--39.04%-- 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
               |          |          
               |           --14.92%-- 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
               |          
                --23.79%-- ring_buffer_unlock_commit
                          trace_nowake_buffer_unlock_commit
                          |          
                          |--49.98%-- 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
                          |          
                          |--25.01%-- 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
                          |          
                           --25.00%-- 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

     0.05%  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

     0.05%  postgres  [kernel.kallsyms]              [k] fget_light                               
            |
            --- fget_light
               |          
               |--56.26%-- sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --43.74%-- sys_lseek
                          system_call
                          __GI___libc_lseek64

     0.05%  postgres  [kernel.kallsyms]              [k] __list_add                               
            |
            --- __list_add
               |          
               |--56.25%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--37.51%-- account_entity_enqueue
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --6.24%-- 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_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

     0.05%  postgres  postgres                       [.] MemoryContextResetOnly                   
            |
            --- MemoryContextResetOnly

     0.05%  postgres  libc-2.12.so                   [.] __GI___kill                              
            |
            --- __GI___kill

     0.05%  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

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

     0.04%  postgres  [kernel.kallsyms]              [k] send_signal                              
            |
            --- send_signal
               |          
               |--92.85%-- do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --7.15%-- group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.04%  postgres  [kernel.kallsyms]              [k] file_read_actor                          
            |
            --- file_read_actor
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.04%  postgres  [kernel.kallsyms]              [k] group_send_sig_info                      
            |
            --- group_send_sig_info
               |          
               |--77.02%-- kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --22.98%-- sys_kill
                          system_call
                          __GI___kill

     0.04%  postgres  [kernel.kallsyms]              [k] default_send_IPI_mask_sequence_phys      
            |
            --- default_send_IPI_mask_sequence_phys
               |          
               |--92.32%-- 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
               |          
                --7.68%-- 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

     0.04%  postgres  [kernel.kallsyms]              [k] task_waking_fair                         
            |
            --- task_waking_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

     0.04%  postgres  [kernel.kallsyms]              [k] check_preempt_curr                       
            |
            --- 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

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

     0.04%  postgres  [kernel.kallsyms]              [k] prepare_signal                           
            |
            --- prepare_signal
               |          
               |--92.25%-- __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --7.75%-- 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] update_rq_clock                          
            |
            --- update_rq_clock
               |          
               |--75.10%-- 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
               |          
               |--16.59%-- 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
               |          
                --8.31%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          s_lock

     0.04%  postgres  [kernel.kallsyms]              [k] current_kernel_time                      
            |
            --- current_kernel_time
               |          
               |--58.46%-- audit_syscall_entry
               |          auditsys
               |          |          
               |          |--56.98%-- __GI___libc_lseek64
               |          |          
               |           --43.02%-- __GI___kill
               |          
                --41.54%-- auditsys
                          |          
                          |--60.00%-- __GI___kill
                          |          
                           --40.00%-- __GI___libc_lseek64

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

     0.04%  postgres  [kernel.kallsyms]              [k] sys_lseek                                
            |
            --- sys_lseek
               |          
               |--91.66%-- __GI___libc_lseek64
               |          
                --8.34%-- system_call
                          __GI___libc_lseek64

     0.04%  postgres  [kernel.kallsyms]              [k] rw_verify_area                           
            |
            --- rw_verify_area
                vfs_read
                sys_read
                system_call
                __GI___libc_read

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

     0.04%  postgres  [kernel.kallsyms]              [k] touch_atime                              
            |
            --- touch_atime
               |          
               |--90.91%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --9.09%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.03%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_stat_runtime      
            |
            --- ftrace_raw_event_sched_stat_runtime
               |          
               |--90.04%-- 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
               |          
                --9.96%-- 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
               |          
               |--40.16%-- __GI___kill
               |          
               |--39.91%-- __GI___libc_lseek64
               |          
                --19.93%-- __GI___libc_read

     0.03%  postgres  [kernel.kallsyms]              [k] kill_pid_info                            
            |
            --- kill_pid_info
                sys_kill
                system_call
                __GI___kill

     0.03%  postgres  [kernel.kallsyms]              [k] account_entity_enqueue                   
            |
            --- account_entity_enqueue
               |          
               |--90.00%-- enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --10.00%-- 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

     0.03%  postgres  [kernel.kallsyms]              [k] __mutex_lock_slowpath                    
            |
            --- __mutex_lock_slowpath
                mutex_lock
                ext4_llseek
                vfs_llseek
                sys_lseek
                system_call
                __GI___libc_lseek64

     0.03%  postgres  [kernel.kallsyms]              [k] ring_buffer_event_data                   
            |
            --- ring_buffer_event_data
               |          
               |--39.63%-- trace_current_buffer_lock_reserve
               |          |          
               |          |--49.21%-- 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
               |          |          
               |          |--25.41%-- 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
               |          |          HeapTupleSatisfiesMVCC
               |          |          
               |           --25.38%-- 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
               |          
               |--20.12%-- 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
               |          
               |--10.06%-- 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
               |          
               |--10.06%-- 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
               |          
               |--10.06%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          ftrace_raw_event_signal_generate
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --10.06%-- update_curr
                          enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.03%  postgres  [kernel.kallsyms]              [k] apic_timer_interrupt                     
            |
            --- apic_timer_interrupt
               |          
               |--22.19%-- slot_getsomeattrs
               |          
               |--11.21%-- hash_search_with_hash_value
               |          
               |--11.11%-- ExecFunnel
               |          
               |--11.11%-- heap_getnext
               |          
               |--11.10%-- ExecProject
               |          
               |--11.10%-- ExecAgg
               |          
               |--11.10%-- ExecScan
               |          
                --11.09%-- file_read_actor
                          generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.03%  postgres  [kernel.kallsyms]              [k] scheduler_tick                           
            |
            --- scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--22.23%-- slot_deform_tuple
               |          
               |--11.12%-- ExecMakeFunctionResultNoSets
               |          
               |--11.12%-- ext4_llseek
               |          vfs_llseek
               |          sys_lseek
               |          system_call
               |          __GI___libc_lseek64
               |          
               |--11.12%-- AllocSetFree
               |          
               |--11.11%-- LookupTupleHashEntry
               |          
               |--11.11%-- do_numeric_accum
               |          
               |--11.10%-- bpchareq
               |          
                --11.10%-- make_result

     0.03%  postgres  [kernel.kallsyms]              [k] hrtick_start_fair                        
            |
            --- hrtick_start_fair
               |          
               |--88.88%-- 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
                          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] do_send_sig_info                         
            |
            --- do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

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

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

     0.03%  postgres  [kernel.kallsyms]              [k] unroll_tree_refs                         
            |
            --- unroll_tree_refs
               |          
               |--87.50%-- __audit_syscall_exit
               |          sysret_audit
               |          |          
               |          |--57.15%-- __GI___kill
               |          |          
               |           --42.85%-- __GI___libc_lseek64
               |          
                --12.50%-- sysret_audit
                          __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] task_of                                  
            |
            --- task_of
               |          
               |--71.68%-- enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --28.32%-- task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--50.02%-- ExecClearTuple
                          |          
                           --49.98%-- palloc

     0.02%  postgres  [kernel.kallsyms]              [k] trace_nowake_buffer_unlock_commit        
            |
            --- trace_nowake_buffer_unlock_commit
               |          
               |--70.84%-- 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
               |          
               |--14.99%-- 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
               |          
                --14.16%-- 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
                          palloc

     0.02%  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

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

     0.02%  postgres  [kernel.kallsyms]              [k] rcu_process_gp_end                       
            |
            --- rcu_process_gp_end
               |          
               |--85.71%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--16.68%-- heap_parallelscan_nextpage
               |          |          
               |          |--16.67%-- slot_getattr
               |          |          
               |          |--16.67%-- hash_search_with_hash_value
               |          |          
               |          |--16.66%-- pg_detoast_datum_packed
               |          |          
               |          |--16.66%-- hash_any
               |          |          
               |           --16.66%-- shm_mq_inc_bytes_read
               |          
                --14.29%-- rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

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

     0.02%  postgres  [kernel.kallsyms]              [k] filter_current_check_discard             
            |
            --- filter_current_check_discard
               |          
               |--28.58%-- ftrace_raw_event_id_sched_stat_template
               |          ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--28.57%-- ftrace_raw_event_id_sched_wakeup_template
               |          ftrace_raw_event_sched_wakeup
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
               |--14.29%-- 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
               |          
               |--14.29%-- ftrace_raw_event_sched_stat_sleep
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --14.28%-- ftrace_raw_event_sched_stat_runtime
                          update_curr
                          enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] __task_pid_nr_ns                         
            |
            --- __task_pid_nr_ns
               |          
               |--85.72%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --14.28%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

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

     0.02%  postgres  [kernel.kallsyms]              [k] find_busiest_group                       
            |
            --- find_busiest_group
                thread_return
                sys_semtimedop
                sys_semop
                system_call
                __GI___semop

     0.02%  postgres  [kernel.kallsyms]              [k] find_next_bit                            
            |
            --- find_next_bit
               |          
               |--71.05%-- 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
               |          
                --28.95%-- 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

     0.02%  postgres  [kernel.kallsyms]              [k] do_sync_read                             
            |
            --- do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] select_idle_sibling                      
            |
            --- select_idle_sibling
               |          
               |--50.17%-- try_to_wake_up
               |          wake_up_state
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.83%-- 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  postgres                       [.] gettimeofday@plt                         
            |
            --- gettimeofday@plt

     0.02%  postgres  [kernel.kallsyms]              [k] account_cfs_rq_runtime                   
            |
            --- account_cfs_rq_runtime
                update_curr
               |          
               |--83.33%-- 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
               |          
                --16.67%-- task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          SetLatch

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

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

     0.02%  postgres  libc-2.12.so                   [.] __GI___libc_read                         
            |
            --- __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] kfree                                    
            |
            --- kfree
               |          
               |--50.00%-- sysret_audit
               |          |          
               |          |--66.68%-- __GI___kill
               |          |          
               |           --33.32%-- __GI___libc_lseek64
               |          
                --50.00%-- __audit_syscall_exit
                          sysret_audit
                          |          
                          |--66.65%-- __GI___libc_read
                          |          
                           --33.35%-- __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] sysret_audit                             
            |
            --- sysret_audit
               |          
               |--50.04%-- __GI___kill
               |          
                --49.96%-- __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] task_active_pid_ns                       
            |
            --- task_active_pid_ns
               |          
               |--83.46%-- send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --16.54%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.02%  postgres  [kernel.kallsyms]              [k] generic_segment_checks                   
            |
            --- generic_segment_checks
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.02%  postgres  postgres                       [.] memcpy@plt                               
            |
            --- memcpy@plt
               |          
               |--66.59%-- networkjoinsel
                --33.41%-- [...]

     0.02%  postgres  [kernel.kallsyms]              [k] mark_page_accessed                       
            |
            --- mark_page_accessed
               |          
               |--83.18%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --16.82%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] fsnotify                                 
            |
            --- fsnotify
               |          
               |--60.27%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --39.73%-- sys_read
                          system_call
                          __GI___libc_read

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

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

     0.02%  postgres  [kernel.kallsyms]              [k] ftrace_trace_stack                       
            |
            --- ftrace_trace_stack
               |          
               |--39.99%-- ftrace_raw_event_sched_stat_runtime
               |          update_curr
               |          enqueue_entity
               |          enqueue_task_fair
               |          enqueue_task
               |          activate_task
               |          try_to_wake_up
               |          |          
               |          |--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
               |          |          
               |           --50.00%-- wake_up_process
               |                     update_queue
               |                     sys_semtimedop
               |                     sys_semop
               |                     system_call
               |                     __GI___semop
               |          
               |--20.01%-- trace_nowake_buffer_unlock_commit
               |          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
               |          
               |--20.01%-- ftrace_raw_event_id_softirq
               |          ftrace_raw_event_softirq_raise
               |          raise_softirq
               |          run_local_timers
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bpcharle
               |          
                --19.99%-- 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

     0.02%  postgres  [kernel.kallsyms]              [k] vfs_llseek                               
            |
            --- vfs_llseek
                sys_lseek
                system_call
                __GI___libc_lseek64

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

     0.02%  postgres  [kernel.kallsyms]              [k] find_pid_ns                              
            |
            --- find_pid_ns
               |          
               |--80.02%-- find_vpid
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --19.98%-- sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] inotify_inode_queue_event                
            |
            --- inotify_inode_queue_event
                vfs_read
                sys_read
                system_call
                __GI___libc_read

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] native_smp_send_reschedule               
            |
            --- native_smp_send_reschedule
               |          
               |--74.99%-- kick_process
               |          signal_wake_up
               |          complete_signal
               |          __send_signal
               |          send_signal
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --25.01%-- signal_wake_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  postgres                       [.] RecoveryInProgress                       
            |
            --- RecoveryInProgress

     0.01%  postgres  [kernel.kallsyms]              [k] dput                                     
            |
            --- dput
                path_put
                __audit_syscall_exit
                sysret_audit
               |          
               |--75.00%-- __GI___kill
               |          
                --25.00%-- __GI___libc_lseek64

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_softirq              
            |
            --- ftrace_raw_event_id_softirq
               |          
               |--49.98%-- ftrace_raw_event_softirq_raise
               |          raise_softirq
               |          run_local_timers
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.03%-- LWLockAcquire
               |          |          
               |           --49.97%-- do_send_sig_info
               |                     group_send_sig_info
               |                     kill_pid_info
               |                     sys_kill
               |                     system_call
               |                     __GI___kill
               |          
               |--25.01%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          AllocSetReset
               |          
                --25.01%-- 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] cap_task_kill                            
            |
            --- cap_task_kill
               |          
               |--75.00%-- security_task_kill
               |          check_kill_permission
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --25.00%-- check_kill_permission
                          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
               |          
               |--25.03%-- 0x7fff597447e4
               |          
               |--25.02%-- ExecEvalScalarVarFast
               |          
               |--24.99%-- LWLockAcquire
               |          
                --24.96%-- slot_deform_tuple

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

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

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

     0.01%  postgres  postgres                       [.] procsignal_sigusr1_handler               
            |
            --- procsignal_sigusr1_handler

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] native_write_msr_safe                    
            |
            --- native_write_msr_safe
               |          
               |--66.61%-- intel_pmu_disable_all
               |          x86_pmu_disable
               |          perf_pmu_disable
               |          perf_adjust_freq_unthr_context
               |          perf_event_task_tick
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- HeapTupleSatisfiesMVCC
               |          |          
               |           --50.00%-- ExecEvalConst
               |          
                --33.39%-- intel_pmu_enable_all
                          x86_pmu_enable
                          perf_pmu_enable
                          |          
                          |--99.75%-- 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
                          |          add_abs
                           --0.25%-- [...]

     0.01%  postgres  [kernel.kallsyms]              [k] hrtimer_run_pending                      
            |
            --- hrtimer_run_pending
               |          
               |--66.67%-- run_timer_softirq
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.01%-- AllocSetAlloc
               |          |          
               |           --49.99%-- shm_mq_receive_bytes
               |          
                --33.33%-- __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] __do_softirq                             
            |
            --- __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.34%-- ExecEvalConst
               |          
               |--33.34%-- ExecMakeFunctionResultNoSets
               |          
                --33.32%-- init_var_from_num

     0.01%  postgres  [kernel.kallsyms]              [k] raise_softirq                            
            |
            --- raise_softirq
               |          
               |--66.67%-- rcu_check_callbacks
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.01%-- bpchareq
               |          |          
               |           --49.99%-- HeapTupleSatisfiesMVCC
               |          
                --33.33%-- update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecQual

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

     0.01%  postgres  [kernel.kallsyms]              [k] run_timer_softirq                        
            |
            --- run_timer_softirq
               |          
               |--66.66%-- __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.03%-- ExecProject
               |          |          
               |           --49.97%-- FunctionCall2Coll
               |          
                --33.34%-- call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecProject

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

     0.01%  postgres  [kernel.kallsyms]              [k] hrtimer_interrupt                        
            |
            --- hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.35%-- 0x7fff5974486a
               |          
               |--33.34%-- slot_deform_tuple
               |          
                --33.31%-- shm_mq_receive_bytes

     0.01%  postgres  [kernel.kallsyms]              [k] rb_erase                                 
            |
            --- rb_erase
                __remove_hrtimer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.41%-- StrategyGetBuffer
               |          
               |--33.31%-- memcpy
               |          
                --33.28%-- file_read_actor
                          generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     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%-- 0x7fff59744898
               |          
               |--33.34%-- ExecScan
               |          
                --33.31%-- __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] path_put                                 
            |
            --- path_put
               |          
               |--66.69%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___kill
               |          
                --33.31%-- sysret_audit
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] run_posix_cpu_timers                     
            |
            --- run_posix_cpu_timers
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.36%-- ExecMakeFunctionResultNoSets
               |          
               |--33.33%-- add_abs
               |          
                --33.31%-- do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] inotify_dentry_parent_queue_event        
            |
            --- inotify_dentry_parent_queue_event
               |          
               |--66.69%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --33.31%-- sys_read
                          system_call
                          __GI___libc_read

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

     0.01%  postgres  [kernel.kallsyms]              [k] physflat_send_IPI_mask                   
            |
            --- physflat_send_IPI_mask
               |          
               |--66.67%-- 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
               |          
                --33.33%-- native_smp_send_reschedule
                          kick_process
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_stat_sleep        
            |
            --- ftrace_raw_event_sched_stat_sleep
                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] activate_task                            
            |
            --- activate_task
               |          
               |--66.67%-- wake_up_state
               |          signal_wake_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%-- try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_wakeup            
            |
            --- ftrace_raw_event_sched_wakeup
                wake_up_state
                signal_wake_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  postgres                       [.] BufTableLookup                           
            |
            --- BufTableLookup

     0.01%  postgres  [kernel.kallsyms]              [k] _cond_resched                            
            |
            --- _cond_resched
               |          
               |--50.37%-- do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --49.63%-- ext4_llseek
                          vfs_llseek
                          sys_lseek
                          system_call
                          __GI___libc_lseek64

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] dyntick_save_progress_counter            
            |
            --- dyntick_save_progress_counter
                rcu_process_dyntick
                force_quiescent_state
                __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.03%-- advance_aggregates
               |          
                --49.97%-- hash_search_with_hash_value

     0.01%  postgres  [kernel.kallsyms]              [k] update_cfs_shares                        
            |
            --- update_cfs_shares
                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] 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
               |          
               |--50.01%-- slot_deform_tuple
               |          
                --49.99%-- HeapTupleSatisfiesMVCC

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

     0.01%  postgres  [kernel.kallsyms]              [k] _spin_lock_irq                           
            |
            --- _spin_lock_irq
                run_timer_softirq
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.02%-- heap_getnext
               |          
                --49.98%-- shm_mq_inc_bytes_read

     0.01%  postgres  [kernel.kallsyms]              [k] find_vpid                                
            |
            --- find_vpid
               |          
               |--50.00%-- sys_kill
               |          system_call
               |          __GI___kill
               |          
                --50.00%-- system_call
                          __GI___kill

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] place_entity                             
            |
            --- place_entity
               |          
               |--50.01%-- 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
               |          
                --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

     0.01%  postgres  [kernel.kallsyms]              [k] rb_next                                  
            |
            --- rb_next
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.03%-- ExecProject
               |          
                --49.97%-- slot_deform_tuple

     0.01%  postgres  [kernel.kallsyms]              [k] __perf_event_task_sched_out              
            |
            --- __perf_event_task_sched_out
                perf_event_task_sched_out
                schedule
               |          
               |--50.02%-- schedule_hrtimeout_range
               |          poll_schedule_timeout
               |          do_select
               |          core_sys_select
               |          sys_select
               |          system_call
               |          __select
               |          
                --49.98%-- sys_semtimedop
                          sys_semop
                          system_call
                          __GI___semop

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

     0.01%  postgres  [kernel.kallsyms]              [k] transfer_objects                         
            |
            --- transfer_objects
               |          
               |--50.00%-- 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
               |          
                --50.00%-- 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] tick_sched_timer                         
            |
            --- tick_sched_timer
               |          
               |--50.01%-- hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          slot_deform_tuple
               |          
                --49.99%-- __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          s_lock

     0.01%  postgres  [kernel.kallsyms]              [k] clockevents_program_event                
            |
            --- clockevents_program_event
                tick_dev_program_event
                tick_program_event
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.00%-- pg_detoast_datum_packed
               |          
                --50.00%-- memcpy

     0.01%  postgres  [kernel.kallsyms]              [k] sched_clock                              
            |
            --- sched_clock
                rb_reserve_next_event
                ring_buffer_lock_reserve
                trace_buffer_lock_reserve
                trace_current_buffer_lock_reserve
               |          
               |--50.02%-- 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
               |          
                --49.98%-- ftrace_raw_event_sched_stat_runtime
                          update_curr
                          enqueue_entity
                          enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_state
                          signal_wake_up
                          complete_signal
                          __send_signal
                          send_signal
                          do_send_sig_info
                          group_send_sig_info
                          kill_pid_info
                          sys_kill
                          system_call
                          __GI___kill

     0.01%  postgres  [kernel.kallsyms]              [k] enqueue_hrtimer                          
            |
            --- enqueue_hrtimer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- ExecClearTuple
               |          
                --49.99%-- bpchareq

     0.01%  postgres  [kernel.kallsyms]              [k] security_file_permission                 
            |
            --- security_file_permission
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.01%  postgres  libc-2.12.so                   [.] __GI___libc_lseek64                      
            |
            --- __GI___libc_lseek64

     0.01%  postgres  [kernel.kallsyms]              [k] sys_semtimedop                           
            |
            --- sys_semtimedop
                sys_semop
                system_call
                __GI___semop

     0.01%  postgres  [kernel.kallsyms]              [k] ntp_tick_length                          
            |
            --- ntp_tick_length
               |          
               |--50.07%-- do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          ExecMakeFunctionResultNoSets
               |          
                --49.93%-- tick_do_update_jiffies64
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          file_read_actor
                          generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.01%  postgres  [kernel.kallsyms]              [k] native_apic_mem_write                    
            |
            --- native_apic_mem_write
               |          
               |--50.03%-- smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_send_sig_info
               |          group_send_sig_info
               |          kill_pid_info
               |          sys_kill
               |          system_call
               |          __GI___kill
               |          
                --49.97%-- clockevents_program_event
                          tick_dev_program_event
                          tick_program_event
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          bcTruelen

     0.01%  postgres  [kernel.kallsyms]              [k] sys_semop                                
            |
            --- sys_semop
                __GI___semop

     0.00%  postgres  [kernel.kallsyms]              [k] handle_edge_irq                          
            |
            --- handle_edge_irq
                handle_irq
                do_IRQ
                ret_from_intr
                do_send_sig_info
                group_send_sig_info
                kill_pid_info
                sys_kill
                system_call
                __GI___kill

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

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

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

     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
                varstr_cmp

     0.00%  postgres  [kernel.kallsyms]              [k] dma_issue_pending_all                    
            |
            --- dma_issue_pending_all
                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] wake_up_state                            
            |
            --- wake_up_state
                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] 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
                hash_search_with_hash_value

     0.00%  postgres  [kernel.kallsyms]              [k] restore_args                             
            |
            --- restore_args
                bcTruelen

     0.00%  postgres  [kernel.kallsyms]              [k] ctx_sched_out                            
            |
            --- ctx_sched_out
                __perf_event_task_sched_out
                perf_event_task_sched_out
                schedule
                retint_careful
                ExecMakeFunctionResultNoSets

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] perf_event_task_tick                     
            |
            --- perf_event_task_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                hash_search_with_hash_value

     0.00%  postgres  [kernel.kallsyms]              [k] __rcu_pending                            
            |
            --- __rcu_pending
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                ExecScan

     0.00%  postgres  [kernel.kallsyms]              [k] ktime_get_update_offsets                 
            |
            --- ktime_get_update_offsets
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_numeric_accum

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

     0.00%  postgres  [kernel.kallsyms]              [k] dev_queue_xmit                           
            |
            --- dev_queue_xmit
                ip_finish_output
                ip_output
                ip_local_out
                ip_queue_xmit
                tcp_transmit_skb
                tcp_send_ack
                tcp_delack_timer
                run_timer_softirq
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                heap_page_prune_opt

     0.00%  postgres  postgres                       [.] memcmp@plt                               
            |
            --- memcmp@plt

     0.00%  postgres  [kernel.kallsyms]              [k] run_local_timers                         
            |
            --- run_local_timers
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                ExecEvalScalarVarFast

     0.00%  postgres  [kernel.kallsyms]              [k] __cfq_slice_expired                      
            |
            --- __cfq_slice_expired
                cfq_idle_slice_timer
                run_timer_softirq
                __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] tracesys                                 
            |
            --- tracesys
                __GI___libc_lseek64

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_softirq_entry           
            |
            --- ftrace_raw_event_softirq_entry
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                HeapTupleSatisfiesMVCC

     0.00%  postgres  [kernel.kallsyms]              [k] irq_enter                                
            |
            --- irq_enter
                apic_timer_interrupt
                ExecProject

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

     0.00%  postgres  [kernel.kallsyms]              [k] do_softirq                               
            |
            --- do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                s_lock

     0.00%  postgres  [kernel.kallsyms]              [k] timekeeping_update                       
            |
            --- timekeeping_update
                do_timer
                tick_do_update_jiffies64
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                file_read_actor
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] smp_apic_timer_interrupt                 
            |
            --- smp_apic_timer_interrupt
                apic_timer_interrupt
                AllocSetFree

     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
                ExecProject

     0.00%  postgres  [kernel.kallsyms]              [k] rb_insert_color                          
            |
            --- rb_insert_color
                enqueue_hrtimer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                bpcharle

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

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] acct_update_integrals                    
            |
            --- 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
                advance_transition_function

     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_process
                hrtimer_wakeup
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                bcTruelen

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

     0.00%  postgres  [kernel.kallsyms]              [k] schedule                                 
            |
            --- schedule
                sys_semtimedop
                sys_semop
                system_call
                __GI___semop

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

     0.00%  postgres  [kernel.kallsyms]              [k] exit_idle                                
            |
            --- exit_idle
                do_IRQ
                ret_from_intr
                bcTruelen

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

     0.00%  postgres  [kernel.kallsyms]              [k] sysret_careful                           
            |
            --- sysret_careful
                __GI___libc_lseek64

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

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

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] ktime_get                                
            |
            --- ktime_get
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                FunctionCall1Coll

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

     0.00%  postgres  [kernel.kallsyms]              [k] irq_to_desc                              
            |
            --- irq_to_desc
                do_IRQ
                ret_from_intr
                varstr_cmp

     0.00%  postgres  [kernel.kallsyms]              [k] idr_find                                 
            |
            --- idr_find
                ipc_lock_check
                sys_semtimedop
                sys_semop
                system_call
                __GI___semop

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

     0.00%  postgres  [kernel.kallsyms]              [k] __local_bh_enable                        
            |
            --- __local_bh_enable
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                hash_any

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

     0.00%  postgres  [kernel.kallsyms]              [k] copy_user_generic                        
            |
            --- copy_user_generic
                file_read_actor
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

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

     0.00%  postgres  [kernel.kallsyms]              [k] free_hot_cold_page                       
            |
            --- free_hot_cold_page
                __pagevec_free
                release_pages
                free_pages_and_swap_cache
                unmap_region
                do_munmap
                sys_brk
                system_call
                __brk

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] __fsnotify_parent                        
            |
            --- __fsnotify_parent
                sys_read
                system_call
                __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] load_balance_start_fair                  
            |
            --- load_balance_start_fair
                thread_return
                schedule_hrtimeout_range
                poll_schedule_timeout
                do_select
                core_sys_select
                sys_select
                system_call
                __select

     0.00%  postgres  [kernel.kallsyms]              [k] perf_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_sys_poll
                sys_poll
                system_call
                __poll
                0x72c4479b242c



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