# ========
# captured on: Tue Sep 22 15:21:47 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 = { 19 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# ========
#
# Samples: 70K of event 'cycles'
# Event count (approx.): 50688622645
#
# Overhead   Command                  Shared Object                                 Symbol
# ........  ........  .............................  .....................................
#
     8.18%  postgres  postgres                       [.] hash_search_with_hash_value      
            |
            --- hash_search_with_hash_value
               |          
               |--1.16%-- 0x1d4108000000000
                --98.84%-- [...]

     7.34%  postgres  postgres                       [.] slot_deform_tuple                
            |
            --- slot_deform_tuple

     6.49%  postgres  postgres                       [.] bcTruelen                        
            |
            --- bcTruelen

     6.25%  postgres  postgres                       [.] bpchareq                         
            |
            --- bpchareq

     5.77%  postgres  postgres                       [.] HeapTupleSatisfiesMVCC           
            |
            --- HeapTupleSatisfiesMVCC

     5.33%  postgres  postgres                       [.] varstr_cmp                       
            |
            --- varstr_cmp

     5.15%  postgres  postgres                       [.] ExecMakeFunctionResultNoSets     
            |
            --- ExecMakeFunctionResultNoSets

     4.96%  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

     4.58%  postgres  postgres                       [.] slot_getattr                     
            |
            --- slot_getattr

     2.86%  postgres  postgres                       [.] heap_getnext                     
            |
            --- heap_getnext

     2.51%  postgres  postgres                       [.] bpcharle                         
            |
            --- bpcharle

     1.71%  postgres  postgres                       [.] ExecQual                         
            |
            --- ExecQual

     1.70%  postgres  postgres                       [.] ExecProject                      
            |
            --- ExecProject

     1.67%  postgres  postgres                       [.] do_numeric_accum                 
            |
            --- do_numeric_accum
               |          
               |--94.74%-- 0x0
                --5.26%-- [...]

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

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

     1.39%  postgres  postgres                       [.] ExecEvalConst                    
            |
            --- ExecEvalConst

     1.23%  postgres  postgres                       [.] heapgetpage                      
            |
            --- heapgetpage

     1.23%  postgres  postgres                       [.] hash_any                         
            |
            --- hash_any

     1.20%  postgres  postgres                       [.] LWLockAcquire                    
            |
            --- LWLockAcquire

     1.20%  postgres  [kernel.kallsyms].vsyscall_fn  [.] vread_tsc                        
            |
            --- vread_tsc
               |          
               |--92.15%-- 0x7fff59744814
               |          0x7fff597448bc
               |          __gettimeofday
               |          
                --7.85%-- 0x7fff597448bc
                          __gettimeofday

     1.17%  postgres  postgres                       [.] AllocSetAlloc                    
            |
            --- AllocSetAlloc

     1.07%  postgres  postgres                       [.] add_abs                          
            |
            --- add_abs

     0.93%  postgres  postgres                       [.] pg_detoast_datum_packed          
            |
            --- pg_detoast_datum_packed

     0.90%  postgres  postgres                       [.] make_result                      
            |
            --- make_result

     0.90%  postgres  postgres                       [.] advance_aggregates               
            |
            --- advance_aggregates

     0.84%  postgres  [vdso]                         [.] 0x00007fff597447fc               
            |          
            |--8.46%-- 0x7fff5974482a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--8.29%-- 0x7fff5974481f
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--7.95%-- 0x7fff597448d4
            |          __gettimeofday
            |          
            |--5.92%-- 0x7fff59744826
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--5.58%-- 0x7fff59744830
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--4.40%-- 0x7fff59744814
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.72%-- 0x7fff597448d8
            |          __gettimeofday
            |          
            |--3.55%-- 0x7fff5974486a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.55%-- 0x7fff59744890
            |          
            |--3.22%-- 0x7fff597448db
            |          __gettimeofday
            |          
            |--3.05%-- 0x7fff597448c0
            |          __gettimeofday
            |          
            |--3.05%-- 0x7fff597447d6
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.54%-- 0x7fff597447d1
            |          __gettimeofday
            |          
            |--2.37%-- 0x7fff5974480a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.37%-- 0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.20%-- 0x7fff59744891
            |          
            |--2.20%-- 0x7fff597448cd
            |          __gettimeofday
            |          
            |--2.03%-- 0x7fff597447fc
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.86%-- 0x7fff597448df
            |          __gettimeofday
            |          
            |--1.69%-- 0x7fff597447d7
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.69%-- 0x7fff59744806
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.69%-- 0x7fff597448a4
            |          __gettimeofday
            |          
            |--1.69%-- 0x7fff5974489b
            |          __gettimeofday
            |          
            |--1.69%-- 0x7fff597447d0
            |          __gettimeofday
            |          
            |--1.52%-- 0x7fff597448e9
            |          __gettimeofday
            |          
            |--1.18%-- 0x7fff5974483d
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.18%-- 0x7fff59744872
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.02%-- 0x7fff597448b2
            |          __gettimeofday
            |          
            |--1.02%-- 0x7fff597448b0
            |          __gettimeofday
            |          
            |--1.02%-- 0x7fff597447d4
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.01%-- 0x7fff597448a1
            |          __gettimeofday
            |          
            |--1.01%-- 0x7fff597447ee
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.85%-- 0x7fff597447e4
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.85%-- 0x7fff59744803
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.68%-- 0x7fff59744811
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.68%-- 0x7fff597448b7
            |          __gettimeofday
            |          
            |--0.51%-- 0x7fff59744898
            |          
            |--0.51%-- 0x7fff5974489d
            |          __gettimeofday
             --2.20%-- [...]

     0.78%  postgres  postgres                       [.] heap_page_prune_opt              
            |
            --- heap_page_prune_opt

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

     0.70%  postgres  postgres                       [.] ExecClearTuple                   
            |
            --- ExecClearTuple

     0.70%  postgres  postgres                       [.] check_stack_depth                
            |
            --- check_stack_depth

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

     0.66%  postgres  postgres                       [.] pgstat_end_function_usage        
            |
            --- pgstat_end_function_usage
               |          
               |--12.47%-- add_var
               |          
               |--1.29%-- 0xc2be900497ac1
               |          
               |--0.86%-- 0xc2c0800497ac1
               |          
               |--0.64%-- 0xc2bf500497ac1
               |          
               |--0.64%-- 0xc2bfd00497ac1
               |          
               |--0.64%-- 0xc2bfb00497ac1
               |          
               |--0.64%-- 0xc2bef00497ac1
               |          
               |--0.43%-- 0xc2c0000497ac1
               |          
               |--0.43%-- 0xc2beb00497ac1
               |          
               |--0.43%-- 0xc2bfa00497ac1
               |          
               |--0.43%-- 0xc2bec00497ac1
               |          
               |--0.43%-- 0xc2c0700497ac1
               |          
               |--0.43%-- 0xc2bf200497ac1
               |          
               |--0.43%-- 0xc2c0100497ac1
               |          
               |--0.43%-- 0xc2bed00497ac1
               |          
               |--0.43%-- 0xc2bf600497ac1
               |          
               |--0.43%-- 0xc2bf700497ac1
                --78.51%-- [...]

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

     0.57%  postgres  postgres                       [.] int64_to_numericvar              
            |
            --- int64_to_numericvar

     0.51%  postgres  postgres                       [.] LWLockRelease                    
            |
            --- LWLockRelease

     0.50%  postgres  postgres                       [.] ExecAgg                          
            |
            --- ExecAgg

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

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

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

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

     0.41%  postgres  postgres                       [.] slot_getsomeattrs                
            |
            --- slot_getsomeattrs

     0.39%  postgres  postgres                       [.] int8_avg_accum                   
            |
            --- int8_avg_accum

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

     0.37%  postgres  postgres                       [.] init_var_from_num                
            |
            --- init_var_from_num
               |          
               |--62.02%-- 0x0
               |          
                --37.98%-- slot_getsomeattrs

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

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

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

     0.33%  postgres  postgres                       [.] ExecProcNode                     
            |
            --- ExecProcNode

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

     0.30%  postgres  postgres                       [.] TupleHashTableHash               
            |
            --- TupleHashTableHash
               |          
               |--22.64%-- 0x1d72000
                --77.36%-- [...]

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

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

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

     0.29%  postgres  libc-2.12.so                   [.] memcpy                           
            |
            --- memcpy

     0.28%  postgres  postgres                       [.] int4_sum                         
            |
            --- int4_sum

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

     0.26%  postgres  [kernel.kallsyms]              [k] put_page                         
            |
            --- put_page
               |          
               |--97.23%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --2.77%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.24%  postgres  postgres                       [.] FunctionCall2Coll                
            |
            --- FunctionCall2Coll

     0.23%  postgres  postgres                       [.] UnpinBuffer.clone.0              
            |
            --- UnpinBuffer.clone.0

     0.22%  postgres  postgres                       [.] PinBuffer                        
            |
            --- PinBuffer

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

     0.20%  postgres  postgres                       [.] DirectFunctionCall1Coll          
            |
            --- DirectFunctionCall1Coll

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

     0.20%  postgres  postgres                       [.] add_var                          
            |
            --- add_var
               |          
               |--50.36%-- 0x0
                --49.64%-- [...]

     0.19%  postgres  postgres                       [.] int8_numeric                     
            |
            --- int8_numeric

     0.19%  postgres  [kernel.kallsyms]              [k] find_get_page                    
            |
            --- find_get_page
               |          
               |--98.48%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --1.52%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.18%  postgres  [kernel.kallsyms]              [k] radix_tree_lookup_slot           
            |
            --- radix_tree_lookup_slot
               |          
               |--92.91%-- find_get_page
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --7.09%-- generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

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

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

     0.17%  postgres  postgres                       [.] LookupTupleHashEntry             
            |
            --- LookupTupleHashEntry
               |          
               |--76.67%-- 0x1d4108000000000
                --23.33%-- [...]

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

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

     0.15%  postgres  postgres                       [.] FunctionCall1Coll                
            |
            --- FunctionCall1Coll

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

     0.14%  postgres  [kernel.kallsyms]              [k] generic_file_aio_read            
            |
            --- generic_file_aio_read
               |          
               |--97.98%-- do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --2.02%-- vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.11%  postgres  [kernel.kallsyms]              [k] vfs_read                         
            |
            --- vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.10%  postgres  [kernel.kallsyms]              [k] __audit_syscall_exit             
            |
            --- __audit_syscall_exit
               |          
               |--97.18%-- sysret_audit
               |          __GI___libc_read
               |          
                --2.82%-- __GI___libc_read

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

     0.10%  postgres  [kernel.kallsyms]              [k] file_read_actor                  
            |
            --- file_read_actor
               |          
               |--97.06%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --2.94%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.09%  postgres  [kernel.kallsyms]              [k] system_call                      
            |
            --- system_call
                __GI___libc_read

     0.09%  postgres  [kernel.kallsyms]              [k] sys_read                         
            |
            --- sys_read
               |          
               |--76.19%-- system_call
               |          __GI___libc_read
               |          
                --23.81%-- __GI___libc_read

     0.08%  postgres  postgres                       [.] hash_search                      
            |
            --- hash_search
               |          
               |--62.72%-- 0x1d72000
               |          
                --37.28%-- 0x1d4108000000000

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

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

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

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

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

     0.06%  postgres  [kernel.kallsyms]              [k] fget_light                       
            |
            --- fget_light
               |          
               |--95.24%-- sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --4.76%-- system_call
                          __GI___libc_read

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

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

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

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

     0.05%  postgres  [kernel.kallsyms]              [k] touch_atime                      
            |
            --- touch_atime
               |          
               |--97.30%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --2.70%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.05%  postgres  [kernel.kallsyms]              [k] rw_verify_area                   
            |
            --- rw_verify_area
               |          
               |--94.29%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --5.71%-- sys_read
                          system_call
                          __GI___libc_read

     0.05%  postgres  [kernel.kallsyms]              [k] audit_syscall_entry              
            |
            --- audit_syscall_entry
               |          
               |--82.35%-- auditsys
               |          __GI___libc_read
               |          
                --17.65%-- __GI___libc_read

     0.05%  postgres  libc-2.12.so                   [.] __memcmp_sse4_1                  
            |
            --- __memcmp_sse4_1

     0.05%  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
               |          
               |--15.63%-- bcTruelen
               |          
               |--12.49%-- hash_search_with_hash_value
               |          
               |--9.38%-- slot_deform_tuple
               |          
               |--9.38%-- bpchareq
               |          
               |--6.26%-- HeapTupleSatisfiesMVCC
               |          
               |--3.13%-- LWLockAcquire
               |          
               |--3.13%-- ExecQual
               |          
               |--3.13%-- ExecEvalScalarVarFast
               |          
               |--3.13%-- palloc
               |          
               |--3.13%-- heap_getnext
               |          
               |--3.13%-- fetch_input_tuple
               |          
               |--3.12%-- ExecProject
               |          
               |--3.12%-- file_read_actor
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
               |--3.12%-- ExecStoreMinimalTuple
               |          
               |--3.12%-- heapgetpage
               |          
               |--3.12%-- ExecMakeFunctionResultNoSets
               |          
               |--3.12%-- advance_aggregates
               |          
               |--3.12%-- hash_any
               |          
               |--3.12%-- pg_detoast_datum_packed
               |          
                --3.12%-- slot_getsomeattrs

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

     0.04%  postgres  [kernel.kallsyms]              [k] generic_segment_checks           
            |
            --- generic_segment_checks
               |          
               |--90.32%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --9.68%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.04%  postgres  [kernel.kallsyms]              [k] sysret_check                     
            |
            --- sysret_check
                __GI___libc_read

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

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

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

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

     0.03%  postgres  [kernel.kallsyms]              [k] _spin_lock                       
            |
            --- _spin_lock
               |          
               |--39.13%-- do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--22.20%-- hash_search_with_hash_value
               |          |          
               |          |--11.12%-- HeapTupleSatisfiesMVCC
               |          |          
               |          |--11.12%-- GetPrivateRefCountEntry
               |          |          
               |          |--11.12%-- TransactionIdPrecedes
               |          |          
               |          |--11.11%-- ExecScan
               |          |          
               |          |--11.11%-- slot_getattr
               |          |          
               |          |--11.11%-- bpchareq
               |          |          
               |           --11.11%-- varstr_cmp
               |          
               |--21.73%-- scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--20.02%-- bpcharle
               |          |          
               |          |--20.00%-- AllocSetReset
               |          |          
               |          |--19.99%-- ExecScan
               |          |          
               |          |--19.99%-- slot_getattr
               |          |          
               |           --19.99%-- do_numeric_accum
               |          
               |--13.05%-- tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.35%-- slot_deform_tuple
               |          |          
               |          |--33.35%-- bpchareq
               |          |          
               |           --33.30%-- file_read_actor
               |                     generic_file_aio_read
               |                     do_sync_read
               |                     vfs_read
               |                     sys_read
               |                     system_call
               |                     __GI___libc_read
               |          
               |--8.69%-- force_quiescent_state
               |          __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.04%-- hash_search_with_hash_value
               |          |          
               |           --49.96%-- AllocSetAlloc
               |          
               |--4.35%-- 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
               |          varstr_cmp
               |          
               |--4.35%-- hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bpchareq
               |          
               |--4.35%-- __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bpcharle
               |          
                --4.35%-- __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
                          heap_getnext

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

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

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

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

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

     0.02%  postgres  [kernel.kallsyms]              [k] apic_timer_interrupt             
            |
            --- apic_timer_interrupt
               |          
               |--13.33%-- ExecEvalConst
               |          
               |--13.33%-- hash_search_with_hash_value
               |          
               |--13.33%-- varstr_cmp
               |          
               |--6.68%-- StrategyGetBuffer
               |          
               |--6.67%-- bcTruelen
               |          
               |--6.67%-- ExecMakeFunctionResultNoSets
               |          
               |--6.67%-- advance_transition_function
               |          
               |--6.67%-- HeapTupleSatisfiesMVCC
               |          
               |--6.66%-- heap_page_prune_opt
               |          
               |--6.66%-- TupleHashTableHash
               |          
               |--6.66%-- LWLockAcquire
               |          
                --6.66%-- make_result

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

     0.02%  postgres  [kernel.kallsyms]              [k] run_timer_softirq                
            |
            --- run_timer_softirq
               |          
               |--78.58%-- __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--18.20%-- bpcharle
               |          |          
               |          |--18.17%-- hash_search_with_hash_value
               |          |          
               |          |--18.17%-- slot_deform_tuple
               |          |          
               |          |--9.10%-- ExecEvalScalarVarFast
               |          |          
               |          |--9.10%-- ExecScan
               |          |          
               |          |--9.09%-- ExecProject
               |          |          
               |          |--9.09%-- pg_detoast_datum_packed
               |          |          
               |           --9.08%-- ExecEvalConst
               |          
                --21.42%-- call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--33.36%-- HeapTupleSatisfiesMVCC
                          |          
                          |--33.32%-- generic_file_aio_read
                          |          do_sync_read
                          |          vfs_read
                          |          sys_read
                          |          system_call
                          |          __GI___libc_read
                          |          
                           --33.32%-- file_read_actor
                                     generic_file_aio_read
                                     do_sync_read
                                     vfs_read
                                     sys_read
                                     system_call
                                     __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] do_sync_read                     
            |
            --- do_sync_read
               |          
               |--92.86%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --7.14%-- sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] current_kernel_time              
            |
            --- current_kernel_time
                audit_syscall_entry
                auditsys
                __GI___libc_read

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

     0.02%  postgres  [kernel.kallsyms]              [k] __do_softirq                     
            |
            --- __do_softirq
               |          
               |--92.31%-- call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--25.00%-- hash_search_with_hash_value
               |          |          
               |          |--16.67%-- slot_deform_tuple
               |          |          
               |          |--16.66%-- file_read_actor
               |          |          generic_file_aio_read
               |          |          do_sync_read
               |          |          vfs_read
               |          |          sys_read
               |          |          system_call
               |          |          __GI___libc_read
               |          |          
               |          |--8.35%-- heapgetpage
               |          |          
               |          |--8.34%-- LWLockAcquire
               |          |          
               |          |--8.34%-- int4_sum
               |          |          
               |          |--8.33%-- ExecMakeFunctionResultNoSets
               |          |          
               |           --8.33%-- slot_getattr
               |          
                --7.69%-- do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          LWLockAcquire

     0.02%  postgres  [kernel.kallsyms]              [k] raise_softirq                    
            |
            --- raise_softirq
               |          
               |--41.66%-- run_local_timers
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--20.03%-- HeapTupleSatisfiesMVCC
               |          |          
               |          |--20.01%-- ExecMakeFunctionResultNoSets
               |          |          
               |          |--20.00%-- slot_deform_tuple
               |          |          
               |          |--19.98%-- file_read_actor
               |          |          generic_file_aio_read
               |          |          do_sync_read
               |          |          vfs_read
               |          |          sys_read
               |          |          system_call
               |          |          __GI___libc_read
               |          |          
               |           --19.98%-- ReadBuffer_common
               |          
               |--33.32%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--25.01%-- IncrBufferRefCount
               |          |          
               |          |--25.01%-- lc_collate_is_c
               |          |          
               |          |--25.00%-- ExecMakeFunctionResultNoSets
               |          |          
               |           --24.99%-- hash_search_with_hash_value
               |          
                --25.02%-- rcu_check_callbacks
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--33.35%-- ExecScan
                          |          
                          |--33.34%-- hash_search_with_hash_value
                          |          
                           --33.32%-- varstr_cmp

     0.02%  postgres  [kernel.kallsyms]              [k] inotify_inode_queue_event        
            |
            --- inotify_inode_queue_event
               |          
               |--75.00%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --25.00%-- sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] _spin_lock_irqsave               
            |
            --- _spin_lock_irqsave
               |          
               |--72.74%-- ntp_tick_length
               |          do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--12.51%-- varstr_cmp
               |          |          
               |          |--12.51%-- slot_getattr
               |          |          
               |          |--12.51%-- hash_search_with_hash_value
               |          |          
               |          |--12.50%-- __memcmp_sse4_1
               |          |          
               |          |--12.50%-- slot_deform_tuple
               |          |          
               |          |--12.50%-- ExecMakeFunctionResultNoSets
               |          |          
               |          |--12.49%-- bcTruelen
               |          |          
               |           --12.48%-- LWLockRelease
               |          
               |--18.17%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          ExecProject
               |          
                --9.09%-- 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
                          HeapTupleSatisfiesMVCC

     0.02%  postgres  [kernel.kallsyms]              [k] rb_reserve_next_event            
            |
            --- rb_reserve_next_event
                ring_buffer_lock_reserve
                trace_buffer_lock_reserve
                trace_current_buffer_lock_reserve
               |          
               |--81.82%-- ftrace_raw_event_id_softirq
               |          |          
               |          |--55.56%-- ftrace_raw_event_softirq_raise
               |          |          raise_softirq
               |          |          |          
               |          |          |--60.01%-- run_local_timers
               |          |          |          update_process_times
               |          |          |          tick_sched_timer
               |          |          |          __run_hrtimer
               |          |          |          hrtimer_interrupt
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          |          
               |          |          |          |--33.37%-- MemoryContextReset
               |          |          |          |          
               |          |          |          |--33.32%-- LWLockRelease
               |          |          |          |          
               |          |          |           --33.31%-- bpcharle
               |          |          |          
               |          |          |--20.02%-- rcu_check_callbacks
               |          |          |          update_process_times
               |          |          |          tick_sched_timer
               |          |          |          __run_hrtimer
               |          |          |          hrtimer_interrupt
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          heap_getnext
               |          |          |          
               |          |           --19.97%-- scheduler_tick
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     hash_search_with_hash_value
               |          |          
               |          |--22.23%-- 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%-- file_read_actor
               |          |                     generic_file_aio_read
               |          |                     do_sync_read
               |          |                     vfs_read
               |          |                     sys_read
               |          |                     system_call
               |          |                     __GI___libc_read
               |          |          
               |           --22.21%-- ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     |          
               |                     |--50.01%-- ExecEvalScalarVarFast
               |                     |          
               |                      --49.99%-- slot_deform_tuple
               |          
                --18.18%-- ftrace_raw_event_sched_stat_runtime
                          update_curr
                          task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--50.00%-- slot_deform_tuple
                          |          
                           --50.00%-- bcTruelen

     0.02%  postgres  [kernel.kallsyms]              [k] fsnotify                         
            |
            --- fsnotify
               |          
               |--81.81%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --18.19%-- sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] mark_page_accessed               
            |
            --- mark_page_accessed
               |          
               |--63.63%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --36.37%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] copy_user_generic                
            |
            --- copy_user_generic
               |          
               |--63.64%-- file_read_actor
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --36.36%-- generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_softirq      
            |
            --- ftrace_raw_event_id_softirq
               |          
               |--39.99%-- ftrace_raw_event_softirq_exit
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--25.02%-- StrategyGetBuffer
               |          |          
               |          |--25.00%-- pgstat_init_function_usage
               |          |          
               |          |--24.99%-- file_read_actor
               |          |          generic_file_aio_read
               |          |          do_sync_read
               |          |          vfs_read
               |          |          sys_read
               |          |          system_call
               |          |          __GI___libc_read
               |          |          
               |           --24.98%-- generic_file_aio_read
               |                     do_sync_read
               |                     vfs_read
               |                     sys_read
               |                     system_call
               |                     __GI___libc_read
               |          
               |--30.02%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--66.67%-- HeapTupleSatisfiesMVCC
               |          |          
               |           --33.33%-- StrategyGetBuffer
               |          
                --29.98%-- 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
                          |          
                          |--33.37%-- ExecEvalScalarVarFast
                          |          
                          |--33.32%-- DataChecksumsEnabled
                          |          
                           --33.31%-- bcTruelen

     0.01%  postgres  [kernel.kallsyms]              [k] update_curr                      
            |
            --- update_curr
                task_tick_fair
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--10.01%-- ExecMakeFunctionResultNoSets
               |          
               |--10.01%-- bpcharle
               |          
               |--10.01%-- slot_getattr
               |          
               |--10.01%-- LWLockAcquire
               |          
               |--10.00%-- int8_avg_accum
               |          
               |--9.99%-- ExecProject
               |          
               |--9.99%-- bcTruelen
               |          
               |--9.99%-- advance_aggregates
               |          
               |--9.99%-- slot_deform_tuple
               |          
                --9.99%-- LWLockRelease

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

     0.01%  postgres  [kernel.kallsyms]              [k] native_write_msr_safe            
            |
            --- native_write_msr_safe
               |          
               |--80.00%-- 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
               |          |          
               |          |--12.52%-- ExecQual
               |          |          
               |          |--12.51%-- hash_search_with_hash_value
               |          |          
               |          |--12.50%-- int8_avg_accum
               |          |          
               |          |--12.50%-- slot_getattr
               |          |          
               |          |--12.49%-- bcTruelen
               |          |          
               |          |--12.49%-- ExecAgg
               |          |          
               |          |--12.49%-- vread_tsc
               |          |          
               |           --12.49%-- slot_deform_tuple
               |          
                --20.00%-- intel_pmu_enable_all
                          x86_pmu_enable
                          perf_pmu_enable
                          |          
                          |--99.95%-- perf_adjust_freq_unthr_context
                          |          perf_event_task_tick
                          |          scheduler_tick
                          |          update_process_times
                          |          tick_sched_timer
                          |          __run_hrtimer
                          |          hrtimer_interrupt
                          |          smp_apic_timer_interrupt
                          |          apic_timer_interrupt
                          |          |          
                          |          |--50.02%-- HeapTupleSatisfiesMVCC
                          |          |          
                          |           --49.98%-- hash_search_with_hash_value
                           --0.05%-- [...]

     0.01%  postgres  [kernel.kallsyms]              [k] security_file_permission         
            |
            --- security_file_permission
               |          
               |--50.00%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --50.00%-- rw_verify_area
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.01%  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
               |          
               |--44.43%-- bpchareq
               |          
               |--22.23%-- bpcharle
               |          
               |--11.12%-- slot_deform_tuple
               |          
               |--11.11%-- ExecEvalScalarVarFast
               |          
                --11.11%-- __gettimeofday

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

     0.01%  postgres  [kernel.kallsyms]              [k] kfree                            
            |
            --- kfree
               |          
               |--55.59%-- sysret_audit
               |          __GI___libc_read
               |          
                --44.41%-- __audit_syscall_exit
                          sysret_audit
                          __GI___libc_read

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

     0.01%  postgres  [kernel.kallsyms]              [k] ring_buffer_lock_reserve         
            |
            --- ring_buffer_lock_reserve
               |          
               |--75.02%-- trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          ftrace_raw_event_id_softirq
               |          |          
               |          |--50.00%-- ftrace_raw_event_softirq_entry
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          |          
               |          |          |--33.35%-- ExecStoreTuple
               |          |          |          
               |          |          |--33.33%-- ExecAgg
               |          |          |          
               |          |           --33.32%-- 0x7fff597448cd
               |          |          
               |           --50.00%-- ftrace_raw_event_softirq_raise
               |                     raise_softirq
               |                     run_local_timers
               |                     update_process_times
               |                     tick_sched_timer
               |                     __run_hrtimer
               |                     hrtimer_interrupt
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     |          
               |                     |--33.36%-- ExecMakeFunctionResultNoSets
               |                     |          
               |                     |--33.33%-- HeapTupleSatisfiesMVCC
               |                     |          
               |                      --33.32%-- file_read_actor
               |                                generic_file_aio_read
               |                                do_sync_read
               |                                vfs_read
               |                                sys_read
               |                                system_call
               |                                __GI___libc_read
               |          
                --24.98%-- trace_current_buffer_lock_reserve
                          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
                          |          
                          |--50.02%-- ExecStoreMinimalTuple
                          |          
                           --49.98%-- slot_getattr

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

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

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] unroll_tree_refs                 
            |
            --- unroll_tree_refs
               |          
               |--75.00%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___libc_read
               |          
                --25.00%-- sysret_audit
                          __GI___libc_read

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] path_put                         
            |
            --- path_put
               |          
               |--71.43%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___libc_read
               |          
                --28.57%-- sysret_audit
                          __GI___libc_read

     0.01%  postgres  [kernel.kallsyms]              [k] _cond_resched                    
            |
            --- _cond_resched
               |          
               |--71.43%-- do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
               |--14.29%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --14.28%-- handle_pte_fault
                          handle_mm_fault
                          __do_page_fault
                          do_page_fault
                          page_fault
                          palloc0

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

     0.01%  postgres  [kernel.kallsyms]              [k] native_read_tsc                  
            |
            --- native_read_tsc
                native_sched_clock
                sched_clock
               |          
               |--83.35%-- trace_clock_local
               |          rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          ftrace_raw_event_id_softirq
               |          |          
               |          |--60.02%-- ftrace_raw_event_softirq_entry
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          |          
               |          |          |--33.35%-- StrategyGetBuffer
               |          |          |          
               |          |          |--33.34%-- int4_sum
               |          |          |          
               |          |           --33.30%-- ExecMakeFunctionResultNoSets
               |          |          
               |           --39.98%-- ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     |          
               |                     |--50.02%-- HeapTupleSatisfiesMVCC
               |                     |          
               |                      --49.98%-- ExecMakeFunctionResultNoSets
               |          
                --16.65%-- sched_clock_cpu
                          update_rq_clock
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          int64_to_numericvar

     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
               |          
               |--16.69%-- pgstat_end_function_usage
               |          
               |--16.68%-- ExecMakeFunctionResultNoSets
               |          
               |--16.67%-- bpchareq
               |          
               |--16.66%-- bpcharle
               |          
               |--16.66%-- slot_deform_tuple
               |          
                --16.64%-- hash_search_with_hash_value

     0.01%  postgres  [kernel.kallsyms]              [k] native_sched_clock               
            |
            --- native_sched_clock
               |          
               |--66.67%-- sched_clock
               |          trace_clock_local
               |          rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          ftrace_raw_event_id_softirq
               |          |          
               |          |--49.99%-- ftrace_raw_event_softirq_raise
               |          |          raise_softirq
               |          |          |          
               |          |          |--50.04%-- run_local_timers
               |          |          |          update_process_times
               |          |          |          tick_sched_timer
               |          |          |          __run_hrtimer
               |          |          |          hrtimer_interrupt
               |          |          |          smp_apic_timer_interrupt
               |          |          |          apic_timer_interrupt
               |          |          |          slot_deform_tuple
               |          |          |          
               |          |           --49.96%-- rcu_check_callbacks
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     hash_search_with_hash_value
               |          |          
               |          |--25.02%-- ftrace_raw_event_softirq_entry
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          HeapTupleSatisfiesMVCC
               |          |          
               |           --24.99%-- ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     __memcmp_sse4_1
               |          
                --33.33%-- trace_clock_local
                          rb_reserve_next_event
                          ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          ftrace_raw_event_id_softirq
                          |          
                          |--50.02%-- ftrace_raw_event_softirq_exit
                          |          __do_softirq
                          |          call_softirq
                          |          do_softirq
                          |          irq_exit
                          |          smp_apic_timer_interrupt
                          |          apic_timer_interrupt
                          |          init_var_from_num
                          |          
                           --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
                                     AllocSetAlloc

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

     0.01%  postgres  [kernel.kallsyms]              [k] __fsnotify_parent                
            |
            --- __fsnotify_parent
               |          
               |--66.66%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --33.34%-- sys_read
                          system_call
                          __GI___libc_read

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

     0.01%  postgres  [kernel.kallsyms]              [k] perf_event_task_tick             
            |
            --- perf_event_task_tick
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--16.70%-- varstr_cmp
               |          
               |--16.68%-- XidInMVCCSnapshot
               |          
               |--16.68%-- slot_getattr
               |          
               |--16.68%-- bcTruelen
               |          
               |--16.66%-- ExecScan
               |          
                --16.59%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.01%  postgres  [kernel.kallsyms]              [k] update_cfs_shares                
            |
            --- update_cfs_shares
               |          
               |--80.01%-- task_tick_fair
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--25.01%-- hash_search_with_hash_value
               |          |          
               |          |--25.01%-- FunctionCall2Coll
               |          |          
               |          |--25.01%-- HeapTupleSatisfiesMVCC
               |          |          
               |           --24.96%-- file_read_actor
               |                     generic_file_aio_read
               |                     do_sync_read
               |                     vfs_read
               |                     sys_read
               |                     system_call
               |                     __GI___libc_read
               |          
                --19.99%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          hash_search_with_hash_value

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

     0.01%  postgres  [kernel.kallsyms]              [k] account_user_time                
            |
            --- account_user_time
                account_process_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--20.02%-- slot_getattr
               |          
               |--20.02%-- bpchareq
               |          
               |--19.99%-- ExecQual
               |          
               |--19.98%-- check_stack_depth
               |          
                --19.98%-- 0x7fff597447fc

     0.01%  postgres  [kernel.kallsyms]              [k] __rb_reserve_next                
            |
            --- __rb_reserve_next
                rb_reserve_next_event
                ring_buffer_lock_reserve
                trace_buffer_lock_reserve
                trace_current_buffer_lock_reserve
                ftrace_raw_event_id_softirq
               |          
               |--40.01%-- ftrace_raw_event_softirq_raise
               |          raise_softirq
               |          |          
               |          |--50.04%-- rcu_check_callbacks
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          ExecQual
               |          |          
               |           --49.96%-- run_local_timers
               |                     update_process_times
               |                     tick_sched_timer
               |                     __run_hrtimer
               |                     hrtimer_interrupt
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     bpchareq
               |          
               |--40.00%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- slot_getattr
               |          |          
               |           --50.00%-- hash_search_with_hash_value
               |          
                --20.00%-- ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          bpchareq

     0.01%  postgres  [kernel.kallsyms]              [k] _spin_unlock_irqrestore          
            |
            --- _spin_unlock_irqrestore
               |          
               |--39.97%-- 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
               |          |          
               |          |--50.02%-- slot_deform_tuple
               |          |          
               |           --49.98%-- ExecClearTuple
               |          
               |--20.03%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bpchareq
               |          
               |--20.01%-- do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          HeapTupleSatisfiesMVCC
               |          
                --19.99%-- ntp_tick_length
                          do_timer
                          tick_do_update_jiffies64
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          InstrStartNode

     0.01%  postgres  [kernel.kallsyms]              [k] rcu_process_gp_end               
            |
            --- rcu_process_gp_end
               |          
               |--80.01%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--25.02%-- advance_aggregates
               |          |          
               |          |--25.00%-- varstr_cmp
               |          |          
               |          |--25.00%-- add_abs
               |          |          
               |           --24.98%-- slot_getattr
               |          
                --19.99%-- rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_getattr

     0.01%  postgres  [kernel.kallsyms]              [k] perf_adjust_freq_unthr_context   
            |
            --- perf_adjust_freq_unthr_context
               |          
               |--60.01%-- perf_event_task_tick
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.37%-- bcTruelen
               |          |          
               |          |--33.32%-- heap_getnext
               |          |          
               |           --33.31%-- ExecQual
               |          
                --39.99%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--50.00%-- HeapTupleSatisfiesMVCC
                          |          
                           --50.00%-- pgstat_end_function_usage

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

     0.01%  postgres  [kernel.kallsyms]              [k] update_cpu_load                  
            |
            --- update_cpu_load
               |          
               |--60.01%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.35%-- do_numeric_accum
               |          |          
               |          |--33.33%-- ExecMakeFunctionResultNoSets
               |          |          
               |           --33.32%-- ExecProject
               |          
                --39.99%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--50.03%-- bcTruelen
                          |          
                           --49.97%-- slot_deform_tuple

     0.01%  postgres  [kernel.kallsyms]              [k] inotify_dentry_parent_queue_event
            |
            --- inotify_dentry_parent_queue_event
               |          
               |--80.00%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --20.00%-- sys_read
                          system_call
                          __GI___libc_read

     0.01%  postgres  [kernel.kallsyms]              [k] auditsys                         
            |
            --- auditsys
                __GI___libc_read

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

     0.01%  postgres  [kernel.kallsyms]              [k] rb_insert_color                  
            |
            --- rb_insert_color
               |          
               |--75.01%-- enqueue_hrtimer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.36%-- LWLockAcquire
               |          |          
               |          |--33.33%-- file_read_actor
               |          |          generic_file_aio_read
               |          |          do_sync_read
               |          |          vfs_read
               |          |          sys_read
               |          |          system_call
               |          |          __GI___libc_read
               |          |          
               |           --33.31%-- slot_deform_tuple
               |          
                --24.99%-- enqueue_task_fair
                          enqueue_task
                          activate_task
                          try_to_wake_up
                          wake_up_process
                          hrtimer_wakeup
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          bpcharle

     0.01%  postgres  [kernel.kallsyms]              [k] do_timer                         
            |
            --- do_timer
                tick_do_update_jiffies64
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--25.04%-- HeapTupleSatisfiesMVCC
               |          
               |--25.00%-- advance_transition_function
               |          
               |--24.99%-- DirectFunctionCall1Coll
               |          
                --24.98%-- 0x7fff597448db

     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%-- hash_search_with_hash_value
               |          
               |--25.00%-- vread_tsc
               |          
               |--24.99%-- slot_deform_tuple
               |          
                --24.98%-- ExecMakeFunctionResultNoSets

     0.01%  postgres  [kernel.kallsyms]              [k] rb_end_commit                    
            |
            --- rb_end_commit
                ring_buffer_unlock_commit
                trace_nowake_buffer_unlock_commit
                ftrace_raw_event_id_softirq
               |          
               |--75.01%-- 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
               |          |          
               |          |--33.35%-- HeapTupleSatisfiesMVCC
               |          |          
               |          |--33.34%-- varstr_cmp
               |          |          
               |           --33.31%-- pgstat_end_function_usage
               |          
                --24.99%-- ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          hash_search_with_hash_value

     0.01%  postgres  [kernel.kallsyms]              [k] cap_file_permission              
            |
            --- cap_file_permission
               |          
               |--75.00%-- security_file_permission
               |          rw_verify_area
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --25.00%-- rw_verify_area
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.01%  postgres  [kernel.kallsyms]              [k] ktime_get_update_offsets         
            |
            --- ktime_get_update_offsets
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--25.01%-- AllocSetReset
               |          
               |--25.00%-- file_read_actor
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
               |--25.00%-- add_abs
               |          
                --24.99%-- bpchareq

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

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

     0.00%  postgres  libc-2.12.so                   [.] __memset_sse2                    
            |
            --- __memset_sse2

     0.00%  postgres  [kernel.kallsyms]              [k] rb_next                          
            |
            --- rb_next
               |          
               |--66.65%-- __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.06%-- bcTruelen
               |          |          
               |           --49.94%-- ExecQual
               |          
                --33.35%-- __remove_hrtimer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          hash_search_with_hash_value

     0.00%  postgres  [kernel.kallsyms]              [k] sched_clock_tick                 
            |
            --- sched_clock_tick
               |          
               |--66.69%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.01%-- MemoryContextReset
               |          |          
               |           --49.99%-- MemoryContextResetOnly
               |          
                --33.31%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          vread_tsc

     0.00%  postgres  [kernel.kallsyms]              [k] trace_clock_local                
            |
            --- trace_clock_local
               |          
               |--66.63%-- ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          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
               |          |          
               |          |--50.02%-- HeapTupleSatisfiesMVCC
               |          |          
               |           --49.98%-- bpchareq
               |          
                --33.37%-- rb_reserve_next_event
                          ring_buffer_lock_reserve
                          trace_buffer_lock_reserve
                          trace_current_buffer_lock_reserve
                          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
                          slot_getattr

     0.00%  postgres  [kernel.kallsyms]              [k] save_args                        
            |
            --- save_args
               |          
               |--33.35%-- make_result
               |          
               |--33.34%-- int64_to_numericvar
               |          
                --33.31%-- varstr_cmp

     0.00%  postgres  [kernel.kallsyms]              [k] ktime_get                        
            |
            --- ktime_get
               |          
               |--66.64%-- tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- pg_detoast_datum_packed
               |          |          
               |           --50.00%-- pgstat_end_function_usage
               |          
                --33.36%-- tick_dev_program_event
                          tick_program_event
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          StrategyGetBuffer

     0.00%  postgres  [kernel.kallsyms]              [k] do_softirq                       
            |
            --- do_softirq
               |          
               |--66.68%-- irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.03%-- hash_search_with_hash_value
               |          |          
               |           --49.97%-- FileRead
               |          
                --33.32%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          0x7fff59744826

     0.00%  postgres  [kernel.kallsyms]              [k] run_posix_cpu_timers             
            |
            --- run_posix_cpu_timers
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.36%-- bpchareq
               |          
               |--33.34%-- ExecAgg
               |          
                --33.31%-- ExecStoreTuple

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

     0.00%  postgres  [kernel.kallsyms]              [k] sysret_signal                    
            |
            --- sysret_signal
                __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] ret_from_sys_call                
            |
            --- ret_from_sys_call
                __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] dput                             
            |
            --- dput
               |          
               |--66.68%-- path_put
               |          __audit_syscall_exit
               |          sysret_audit
               |          __GI___libc_read
               |          
                --33.32%-- __audit_syscall_exit
                          sysret_audit
                          __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] enqueue_hrtimer                  
            |
            --- enqueue_hrtimer
               |          
               |--66.67%-- hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.00%-- AllocSetAlloc
               |          |          
               |           --50.00%-- hashbpchar
               |          
                --33.33%-- __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

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

     0.00%  postgres  [kernel.kallsyms]              [k] ring_buffer_unlock_commit        
            |
            --- ring_buffer_unlock_commit
               |          
               |--50.04%-- ftrace_raw_event_irq_handler_exit
               |          handle_IRQ_event
               |          handle_edge_irq
               |          handle_irq
               |          do_IRQ
               |          ret_from_intr
               |          ReadBuffer_common
               |          
                --49.96%-- ftrace_raw_event_id_softirq
                          ftrace_raw_event_softirq_raise
                          raise_softirq
                          run_local_timers
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          add_abs

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

     0.00%  postgres  [kernel.kallsyms]              [k] __run_hrtimer                    
            |
            --- __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.03%-- varstr_cmp
               |          
                --49.97%-- bpchareq

     0.00%  postgres  [kernel.kallsyms]              [k] check_for_new_grace_period       
            |
            --- check_for_new_grace_period
                __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.03%-- ExecQual
               |          
                --49.97%-- 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] rcu_process_callbacks            
            |
            --- rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.04%-- hash_search_with_hash_value
               |          
                --49.96%-- ExecMakeFunctionResultNoSets

     0.00%  postgres  [kernel.kallsyms]              [k] force_quiescent_state            
            |
            --- force_quiescent_state
               |          
               |--50.07%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          varstr_cmp
               |          
                --49.93%-- rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecScan

     0.00%  postgres  [kernel.kallsyms]              [k] account_process_tick             
            |
            --- account_process_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.02%-- bpchareq
               |          
                --49.98%-- init_var_from_num

     0.00%  postgres  [kernel.kallsyms]              [k] trace_nowake_buffer_unlock_commit
            |
            --- trace_nowake_buffer_unlock_commit
                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
               |          
               |--50.02%-- slot_deform_tuple
               |          
                --49.98%-- hash_search_with_hash_value

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_trace_userstack           
            |
            --- ftrace_trace_userstack
                trace_nowake_buffer_unlock_commit
                ftrace_raw_event_id_softirq
               |          
               |--50.03%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bcTruelen
               |          
                --49.97%-- 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
                          palloc

     0.00%  postgres  [kernel.kallsyms]              [k] perf_pmu_disable                 
            |
            --- perf_pmu_disable
               |          
               |--50.01%-- 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
               |          LWLockRelease
               |          
                --49.99%-- perf_event_task_tick
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

     0.00%  postgres  [kernel.kallsyms]              [k] update_process_times             
            |
            --- update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- ExecEvalConst
               |          
                --49.99%-- hash_search_with_hash_value

     0.00%  postgres  [ip_tables]                    [k] ipt_do_table                     
            |
            --- ipt_do_table
                ipt_local_out_hook
                nf_iterate
                nf_hook_slow
                __ip_local_out
                ip_local_out
                ip_queue_xmit
                tcp_transmit_skb
                tcp_send_ack
               |          
               |--50.02%-- tcp_delack_timer
               |          run_timer_softirq
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          do_numeric_accum
               |          
                --49.98%-- __tcp_ack_snd_check
                          tcp_rcv_established
                          tcp_v4_do_rcv
                          tcp_v4_rcv
                          ip_local_deliver_finish
                          ip_local_deliver
                          ip_rcv_finish
                          ip_rcv
                          __netif_receive_skb
                          process_backlog
                          net_rx_action
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          do_IRQ
                          ret_from_intr
                          hash_search_with_hash_value

     0.00%  postgres  [kernel.kallsyms]              [k] ring_buffer_event_data           
            |
            --- ring_buffer_event_data
               |          
               |--50.02%-- ftrace_raw_event_sched_stat_runtime
               |          update_curr
               |          task_tick_fair
               |          scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          ExecEvalScalarVarFast
               |          
                --49.98%-- 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
                          ExecEvalConst

     0.00%  postgres  [kernel.kallsyms]              [k] printk_tick                      
            |
            --- printk_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- hash_search_with_hash_value
               |          
                --49.99%-- __gettimeofday

     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
               |          
               |--50.01%-- hash_search_with_hash_value
               |          
                --49.99%-- slot_deform_tuple

     0.00%  postgres  [kernel.kallsyms]              [k] read_tsc                         
            |
            --- read_tsc
               |          
               |--50.00%-- ktime_get_update_offsets
               |          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
               |          
                --50.00%-- hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecEvalScalarVarFast

     0.00%  postgres  [kernel.kallsyms]              [k] tick_dev_program_event           
            |
            --- tick_dev_program_event
               |          
               |--50.01%-- tick_program_event
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          slot_deform_tuple
               |          
                --49.99%-- hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          pg_detoast_datum_packed

     0.00%  postgres  [kernel.kallsyms]              [k] hrtimer_interrupt                
            |
            --- hrtimer_interrupt
               |          
               |--50.00%-- apic_timer_interrupt
               |          bpchareq
               |          
                --50.00%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          LWLockAcquire

     0.00%  postgres  [kernel.kallsyms]              [k] tracing_generic_entry_update     
            |
            --- tracing_generic_entry_update
                trace_buffer_lock_reserve
                trace_current_buffer_lock_reserve
                ftrace_raw_event_id_softirq
               |          
               |--50.00%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bcTruelen
               |          
                --50.00%-- ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          bcTruelen

     0.00%  postgres  [kernel.kallsyms]              [k] hrtimer_run_queues               
            |
            --- hrtimer_run_queues
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.00%-- file_read_actor
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --50.00%-- bpchareq

     0.00%  postgres  [kernel.kallsyms]              [k] run_local_timers                 
            |
            --- run_local_timers
               |          
               |--50.01%-- tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          ExecMakeFunctionResultNoSets
               |          
                --49.99%-- update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          advance_aggregates

     0.00%  postgres  [kernel.kallsyms]              [k] __local_bh_enable                
            |
            --- __local_bh_enable
               |          
               |--50.01%-- call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          slot_deform_tuple
               |          
                --49.99%-- __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

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

     0.00%  postgres  [kernel.kallsyms]              [k] __percpu_counter_add             
            |
            --- __percpu_counter_add
               |          
               |--50.13%-- account_system_time
               |          account_process_tick
               |          update_process_times
               |          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
               |          
                --49.87%-- account_user_time
                          account_process_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          add_abs

     0.00%  postgres  postgres                       [.] base_yyparse                     
            |
            --- base_yyparse
                0x1cb6610

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

     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
                StrategyGetBuffer

     0.00%  postgres  [kernel.kallsyms]              [k] sched_avg_update                 
            |
            --- sched_avg_update
                scale_rt_power
                update_group_power
                find_busiest_group
                rebalance_domains
                run_rebalance_domains
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                bcTruelen

     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
                heap_getnext

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

     0.00%  postgres  [kernel.kallsyms]              [k] trace_current_buffer_lock_reserve
            |
            --- trace_current_buffer_lock_reserve
                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
                ReadBufferExtended

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] ntp_tick_length                  
            |
            --- ntp_tick_length
                do_timer
                tick_do_update_jiffies64
                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] task_rq_lock                     
            |
            --- task_rq_lock
                try_to_wake_up
                default_wake_function
                autoremove_wake_function
                receiver_wake_function
                __wake_up_common
                __wake_up_sync_key
                sock_def_readable
                sock_queue_rcv_skb
                raw_rcv_skb
                raw_rcv
                raw_local_deliver
                ip_local_deliver_finish
                ip_local_deliver
                ip_rcv_finish
                ip_rcv
                __netif_receive_skb
                process_backlog
                net_rx_action
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                do_IRQ
                ret_from_intr
                make_result

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

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

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] native_apic_mem_write            
            |
            --- native_apic_mem_write
                clockevents_program_event
                tick_dev_program_event
                tick_program_event
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                advance_aggregates

     0.00%  postgres  [kernel.kallsyms]              [k] fib_semantic_match               
            |
            --- fib_semantic_match
                fn_hash_lookup
                fib4_rule_action
                fib_rules_lookup
                fib_lookup
                fib_validate_source
                ip_route_input_slow
                ip_route_input
                ip_rcv_finish
                ip_rcv
                __netif_receive_skb
                netif_receive_skb
                napi_skb_finish
                napi_gro_receive
                ixgbe_poll
                net_rx_action
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                do_IRQ
                ret_from_intr
                CheckForSerializableConflictOut

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

     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
                hash_search_with_hash_value

     0.00%  postgres  [ipv6]                         [k] ipv6_rcv                         
            |
            --- ipv6_rcv
                __netif_receive_skb
                process_backlog
                net_rx_action
                __do_softirq
                call_softirq
                local_bh_enable
                dev_queue_xmit
                ip6_output_finish
                ip6_output2
                ip6_output
                ip6_local_out
                ip6_push_pending_frames
                udp_v6_push_pending_frames
                udpv6_sendmsg
                inet_sendmsg
                sock_sendmsg
                sys_sendto
                system_call
                __libc_send

     0.00%  postgres  [kernel.kallsyms]              [k] trace_buffer_lock_reserve        
            |
            --- trace_buffer_lock_reserve
                trace_current_buffer_lock_reserve
                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
                hashbpchar

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

     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
                LWLockAcquire

     0.00%  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
                bpchareq

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] task_of                          
            |
            --- task_of
                task_tick_fair
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] update_vsyscall                  
            |
            --- update_vsyscall
                timekeeping_update
                do_timer
                tick_do_update_jiffies64
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                do_numeric_accum

     0.00%  postgres  [ixgbe]                        [k] ixgbe_xmit_frame_ring            
            |
            --- ixgbe_xmit_frame_ring
                ixgbe_xmit_frame
                dev_hard_start_xmit
                sch_direct_xmit
                dev_queue_xmit
                0xffffffffa05a15bf
                dev_hard_start_xmit
                sch_direct_xmit
                dev_queue_xmit
                ip_finish_output
                ip_output
                ip_local_out
                ip_queue_xmit
                tcp_transmit_skb
                tcp_send_ack
                tcp_delack_timer
                run_timer_softirq
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
                vread_tsc

     0.00%  postgres  [xt_state]                     [k] cleanup_module                   
            |
            --- cleanup_module
                ipt_local_out_hook
                nf_iterate
                nf_hook_slow
                __ip_local_out
                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
                find_get_page
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

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

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_trace_stack               
            |
            --- ftrace_trace_stack
                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
                HeapTupleSatisfiesMVCC

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

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

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_implicit_dynticks_qs         
            |
            --- rcu_implicit_dynticks_qs
                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
                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] 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
                ExecMakeFunctionResultNoSets

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

     0.00%  postgres  [kernel.kallsyms]              [k] trace_recursive_unlock           
            |
            --- trace_recursive_unlock
                trace_nowake_buffer_unlock_commit
                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

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

     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
                element_alloc

     0.00%  postgres  [kernel.kallsyms]              [k] unix_poll                        
            |
            --- unix_poll
                sock_poll
                do_sys_poll
                sys_poll
                system_call
                __poll
                0x72c4479b242c

     0.00%  postgres  [kernel.kallsyms]              [k] perf_pmu_rotate_start            
            |
            --- perf_pmu_rotate_start
                __perf_event_task_sched_in
                finish_task_switch
                thread_return
                schedule_hrtimeout_range
                poll_schedule_timeout
                do_sys_poll
                sys_poll
                system_call
                __poll
                0x72c4479b242c



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