# ========
# captured on: Tue Sep 22 15:09:20 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 = { 12 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# ========
#
# Samples: 54K of event 'cycles'
# Event count (approx.): 38945076804
#
# Overhead   Command                  Shared Object                                   Symbol
# ........  ........  .............................  .......................................
#
     8.80%  postgres  postgres                       [.] HeapTupleSatisfiesMVCC             
            |
            --- HeapTupleSatisfiesMVCC

     7.19%  postgres  postgres                       [.] varstr_cmp                         
            |
            --- varstr_cmp

     7.04%  postgres  postgres                       [.] slot_deform_tuple                  
            |
            --- slot_deform_tuple

     7.02%  postgres  postgres                       [.] bcTruelen                          
            |
            --- bcTruelen

     6.96%  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

     6.61%  postgres  postgres                       [.] hash_search_with_hash_value        
            |
            --- hash_search_with_hash_value
               |          
               |--0.87%-- 0x1d4108000000000
                --99.13%-- [...]

     5.07%  postgres  postgres                       [.] ExecMakeFunctionResultNoSets       
            |
            --- ExecMakeFunctionResultNoSets

     4.21%  postgres  postgres                       [.] bpchareq                           
            |
            --- bpchareq

     4.03%  postgres  postgres                       [.] slot_getattr                       
            |
            --- slot_getattr

     3.86%  postgres  postgres                       [.] heap_getnext                       
            |
            --- heap_getnext

     2.72%  postgres  postgres                       [.] bpcharle                           
            |
            --- bpcharle

     2.10%  postgres  postgres                       [.] ExecScan                           
            |
            --- ExecScan

     1.78%  postgres  postgres                       [.] ExecQual                           
            |
            --- ExecQual

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

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

     1.34%  postgres  postgres                       [.] ExecEvalConst                      
            |
            --- ExecEvalConst

     1.30%  postgres  postgres                       [.] LWLockAcquire                      
            |
            --- LWLockAcquire

     1.22%  postgres  postgres                       [.] heap_page_prune_opt                
            |
            --- heap_page_prune_opt

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

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

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

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

     0.88%  postgres  postgres                       [.] do_numeric_accum                   
            |
            --- do_numeric_accum
               |          
               |--94.13%-- 0x0
                --5.87%-- [...]

     0.80%  postgres  [kernel.kallsyms].vsyscall_fn  [.] vread_tsc                          
            |
            --- vread_tsc
               |          
               |--86.05%-- 0x7fff59744814
               |          0x7fff597448bc
               |          __gettimeofday
               |          
                --13.95%-- 0x7fff597448bc
                          __gettimeofday

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

     0.74%  postgres  postgres                       [.] check_stack_depth                  
            |
            --- check_stack_depth

     0.72%  postgres  postgres                       [.] add_abs                            
            |
            --- add_abs

     0.71%  postgres  [vdso]                         [.] 0x00007fff597448c0                 
            |          
            |--8.57%-- 0x7fff597448d4
            |          __gettimeofday
            |          
            |--7.79%-- 0x7fff5974482a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--7.79%-- 0x7fff5974481f
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--4.94%-- 0x7fff59744830
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--4.42%-- 0x7fff59744814
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.90%-- 0x7fff59744826
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.64%-- 0x7fff597448e9
            |          __gettimeofday
            |          
            |--3.38%-- 0x7fff5974483d
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.12%-- 0x7fff597448cd
            |          __gettimeofday
            |          
            |--3.12%-- 0x7fff597447d6
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--3.12%-- 0x7fff597448d8
            |          __gettimeofday
            |          
            |--3.12%-- 0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.60%-- 0x7fff597448db
            |          __gettimeofday
            |          
            |--2.60%-- 0x7fff597448a1
            |          __gettimeofday
            |          
            |--2.60%-- 0x7fff5974480a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.34%-- 0x7fff59744891
            |          
            |--2.34%-- 0x7fff59744803
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.34%-- 0x7fff597447ee
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.34%-- 0x7fff59744872
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--2.08%-- 0x7fff59744890
            |          
            |--2.08%-- 0x7fff597448a4
            |          __gettimeofday
            |          
            |--1.82%-- 0x7fff5974489b
            |          __gettimeofday
            |          
            |--1.82%-- 0x7fff597448c0
            |          __gettimeofday
            |          
            |--1.56%-- 0x7fff5974486a
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.56%-- 0x7fff597448b2
            |          __gettimeofday
            |          
            |--1.56%-- 0x7fff597448b0
            |          __gettimeofday
            |          
            |--1.56%-- 0x7fff597447d1
            |          __gettimeofday
            |          
            |--1.56%-- 0x7fff59744898
            |          
            |--1.30%-- 0x7fff597448df
            |          __gettimeofday
            |          
            |--1.30%-- 0x7fff59744806
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.30%-- 0x7fff597447fc
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.04%-- 0x7fff59744811
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--1.04%-- 0x7fff5974489d
            |          __gettimeofday
            |          
            |--0.78%-- 0x7fff59744873
            |          __gettimeofday
            |          
            |--0.52%-- 0x7fff597447e4
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.52%-- 0x7fff597448b7
            |          __gettimeofday
            |          
            |--0.52%-- 0x7fff597447d7
            |          0x7fff597448bc
            |          __gettimeofday
            |          
            |--0.52%-- 0x7fff597447d0
            |          __gettimeofday
             --1.56%-- [...]

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

     0.60%  postgres  postgres                       [.] pgstat_end_function_usage          
            |
            --- pgstat_end_function_usage
               |          
               |--10.12%-- add_var
               |          
               |--1.53%-- 0xc27f000497ac1
               |          
               |--0.92%-- 0xc280400497ac1
               |          
               |--0.92%-- 0xc27eb00497ac1
               |          
               |--0.92%-- 0xc27e900497ac1
               |          
               |--0.61%-- 0xc280000497ac1
               |          
               |--0.61%-- 0xc27f100497ac1
               |          
               |--0.61%-- 0xc280200497ac1
               |          
               |--0.61%-- 0xc27f800497ac1
               |          
               |--0.61%-- 0xc27ff00497ac1
               |          
               |--0.61%-- 0xc27fb00497ac1
               |          
               |--0.61%-- 0xc27f700497ac1
               |          
               |--0.61%-- 0xc27e800497ac1
               |          
               |--0.61%-- 0xc27f400497ac1
               |          
               |--0.31%-- 0x13bf3800497ac1
               |          
               |--0.31%-- 0x12177d00497ac1
               |          
               |--0.31%-- 0x71f9800497ac1
               |          
               |--0.31%-- 0x11cec900497ac1
               |          
               |--0.31%-- 0x580fa00497ac1
               |          
               |--0.31%-- 0x16cc0e00497ac1
               |          
               |--0.31%-- 0x4f03d00497ac1
               |          
               |--0.31%-- 0x104a8d00497ac1
               |          
               |--0.31%-- 0x12546d00497ac1
               |          
               |--0.31%-- 0x1a02400497ac1
               |          
               |--0.31%-- 0x6415100497ac1
               |          
               |--0.31%-- 0xcd7cd00497ac1
               |          
               |--0.31%-- 0x20d4300497ac1
               |          
               |--0.31%-- 0x12a21d00497ac1
               |          
               |--0.31%-- 0x18e7a00497ac1
               |          
               |--0.31%-- 0xcda6100497ac1
               |          
               |--0.31%-- 0x8194200497ac1
               |          
               |--0.31%-- 0x42f6300497ac1
               |          
               |--0.31%-- 0x8d11b00497ac1
               |          
               |--0.31%-- 0x4f82500497ac1
               |          
               |--0.31%-- 0x19f3900497ac1
               |          
               |--0.31%-- 0xe11500497ac1
               |          
               |--0.31%-- 0x17676f00497ac1
               |          
               |--0.31%-- 0x945de00497ac1
               |          
               |--0.31%-- 0x8ec8300497ac1
               |          
               |--0.31%-- 0xa366500497ac1
               |          
               |--0.31%-- 0x5e66b00497ac1
               |          
               |--0.31%-- 0x143bb900497ac1
               |          
               |--0.31%-- 0xf2a8f00497ac1
               |          
               |--0.31%-- 0xe77d200497ac1
               |          
               |--0.31%-- 0x5c8fe00497ac1
               |          
               |--0.31%-- 0x9eb6100497ac1
               |          
               |--0.31%-- 0xc293800497ac1
               |          
               |--0.31%-- 0x88de600497ac1
               |          
               |--0.31%-- 0x3922400497ac1
               |          
               |--0.31%-- 0x13e83200497ac1
               |          
               |--0.31%-- 0xc4cd200497ac1
               |          
               |--0.31%-- 0xebfe700497ac1
               |          
               |--0.31%-- 0x4f4f300497ac1
               |          
               |--0.31%-- 0x46b6d00497ac1
               |          
               |--0.31%-- 0xa4a7300497ac1
               |          
               |--0.31%-- 0x15fd5400497ac1
               |          
               |--0.31%-- 0x5ade100497ac1
               |          
               |--0.31%-- 0x831ab00497ac1
               |          
               |--0.31%-- 0x3a2c800497ac1
               |          
               |--0.31%-- 0x542a00497ac1
               |          
               |--0.31%-- 0x8a13400497ac1
               |          
               |--0.31%-- 0x9b1f400497ac1
               |          
               |--0.31%-- 0x1f0fb00497ac1
               |          
               |--0.31%-- 0xb6e3900497ac1
               |          
               |--0.31%-- 0x105a7600497ac1
               |          
               |--0.31%-- 0x16e35100497ac1
               |          
               |--0.31%-- 0x1deb300497ac1
               |          
               |--0.31%-- 0x6e4ec00497ac1
               |          
               |--0.31%-- 0xcb21700497ac1
               |          
               |--0.31%-- 0xb7d3e00497ac1
               |          
               |--0.31%-- 0xb9f7200497ac1
               |          
               |--0.31%-- 0x6518800497ac1
               |          
               |--0.31%-- 0x17238a00497ac1
               |          
               |--0.31%-- 0x11adac00497ac1
               |          
               |--0.31%-- 0x97a7800497ac1
               |          
               |--0.31%-- 0xd8c7000497ac1
               |          
               |--0.31%-- 0xb67ab00497ac1
               |          
               |--0.31%-- 0x2de7f00497ac1
               |          
               |--0.31%-- 0x14827100497ac1
               |          
               |--0.31%-- 0xdef5f00497ac1
               |          
               |--0.31%-- 0x14664600497ac1
               |          
               |--0.31%-- 0x6ed7400497ac1
               |          
               |--0.31%-- 0x1378fb00497ac1
               |          
               |--0.31%-- 0xe975800497ac1
               |          
               |--0.31%-- 0x2c2ae00497ac1
               |          
               |--0.31%-- 0x16615300497ac1
               |          
               |--0.31%-- 0xad6d200497ac1
               |          
               |--0.31%-- 0x122bf200497ac1
               |          
               |--0.31%-- 0xc1ada00497ac1
               |          
               |--0.31%-- 0x12c04c00497ac1
               |          
               |--0.31%-- 0x8c0cf00497ac1
               |          
               |--0.31%-- 0x14a81500497ac1
               |          
               |--0.31%-- 0xbc58700497ac1
               |          
               |--0.31%-- 0xf200d00497ac1
               |          
               |--0.31%-- 0x9412b00497ac1
               |          
               |--0.31%-- 0xc27e600497ac1
               |          
               |--0.31%-- 0x1198e900497ac1
               |          
               |--0.31%-- 0x3ee400497ac1
               |          
               |--0.31%-- 0xd21b00497ac1
               |          
               |--0.31%-- 0x3557700497ac1
               |          
               |--0.31%-- 0xb578800497ac1
               |          
               |--0.31%-- 0xd82c400497ac1
               |          
               |--0.31%-- 0xc27fd00497ac1
               |          
               |--0.31%-- 0xc27ec00497ac1
               |          
               |--0.31%-- 0xc27f500497ac1
               |          
               |--0.31%-- 0xc27f600497ac1
               |          
               |--0.31%-- 0xc27fe00497ac1
               |          
               |--0.31%-- 0xc280500497ac1
               |          
               |--0.31%-- 0xc27f900497ac1
               |          
               |--0.31%-- 0x13c17500497ac1
               |          
               |--0.31%-- 0xc280100497ac1
               |          
               |--0.31%-- 0xc27f200497ac1
               |          
               |--0.31%-- 0xc280300497ac1
               |          
               |--0.31%-- 0xc27f300497ac1
               |          
               |--0.31%-- 0xc27fa00497ac1
               |          
               |--0.31%-- 0xc27fc00497ac1
                --48.78%-- [...]

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

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

     0.53%  postgres  postgres                       [.] make_result                        
            |
            --- make_result

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

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

     0.43%  postgres  postgres                       [.] ExecClearTuple                     
            |
            --- ExecClearTuple

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

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

     0.35%  postgres  postgres                       [.] int64_to_numericvar                
            |
            --- int64_to_numericvar

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

     0.34%  postgres  [kernel.kallsyms]              [k] put_page                           
            |
            --- put_page
               |          
               |--97.25%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --2.75%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

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

     0.32%  postgres  postgres                       [.] UnpinBuffer.clone.0                
            |
            --- UnpinBuffer.clone.0

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

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

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

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

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

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

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

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

     0.25%  postgres  postgres                       [.] init_var_from_num                  
            |
            --- init_var_from_num
               |          
               |--63.25%-- 0x0
               |          
                --36.75%-- slot_getsomeattrs

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

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

     0.24%  postgres  [kernel.kallsyms]              [k] find_get_page                      
            |
            --- find_get_page
               |          
               |--96.12%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --3.88%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

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

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

     0.23%  postgres  postgres                       [.] int8_avg_accum                     
            |
            --- int8_avg_accum

     0.21%  postgres  postgres                       [.] TupleHashTableHash                 
            |
            --- TupleHashTableHash
               |          
               |--25.66%-- 0x1d72000
                --74.34%-- [...]

     0.21%  postgres  [kernel.kallsyms]              [k] radix_tree_lookup_slot             
            |
            --- radix_tree_lookup_slot
               |          
               |--91.15%-- find_get_page
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --8.85%-- generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.19%  postgres  postgres                       [.] int4_sum                           
            |
            --- int4_sum

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

     0.19%  postgres  [kernel.kallsyms]              [k] generic_file_aio_read              
            |
            --- generic_file_aio_read
               |          
               |--97.06%-- do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --2.94%-- vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.17%  postgres  postgres                       [.] FunctionCall2Coll                  
            |
            --- FunctionCall2Coll

     0.16%  postgres  [kernel.kallsyms]              [k] system_call                        
            |
            --- system_call
               |          
               |--98.84%-- __GI___libc_read
               |          
                --1.16%-- HeapTupleSatisfiesMVCC

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

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

     0.14%  postgres  postgres                       [.] DirectFunctionCall1Coll            
            |
            --- DirectFunctionCall1Coll

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

     0.12%  postgres  libc-2.12.so                   [.] __gettimeofday                     
            |
            --- __gettimeofday

     0.12%  postgres  postgres                       [.] int8_numeric                       
            |
            --- int8_numeric

     0.12%  postgres  postgres                       [.] add_var                            
            |
            --- add_var
               |          
               |--58.47%-- 0x0
                --41.53%-- [...]

     0.12%  postgres  [kernel.kallsyms]              [k] vfs_read                           
            |
            --- vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.11%  postgres  [kernel.kallsyms]              [k] __audit_syscall_exit               
            |
            --- __audit_syscall_exit
               |          
               |--95.08%-- sysret_audit
               |          __GI___libc_read
               |          
                --4.92%-- __GI___libc_read

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

     0.10%  postgres  [kernel.kallsyms]              [k] file_read_actor                    
            |
            --- file_read_actor
               |          
               |--94.54%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --5.46%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.10%  postgres  postgres                       [.] FunctionCall1Coll                  
            |
            --- FunctionCall1Coll

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

     0.09%  postgres  libc-2.12.so                   [.] __GI___libc_read                   
            |
            --- __GI___libc_read

     0.08%  postgres  [kernel.kallsyms]              [k] sys_read                           
            |
            --- sys_read
               |          
               |--82.22%-- system_call
               |          __GI___libc_read
               |          
                --17.78%-- __GI___libc_read

     0.08%  postgres  postgres                       [.] LookupTupleHashEntry               
            |
            --- LookupTupleHashEntry
               |          
               |--79.55%-- 0x1d4108000000000
                --20.45%-- [...]

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

     0.07%  postgres  postgres                       [.] StartBufferIO                      
            |
            --- StartBufferIO

     0.07%  postgres  postgres                       [.] TupleHashTableMatch                
            |
            --- TupleHashTableMatch

     0.07%  postgres  postgres                       [.] fetch_input_tuple                  
            |
            --- fetch_input_tuple

     0.07%  postgres  [kernel.kallsyms]              [k] rw_verify_area                     
            |
            --- rw_verify_area
                vfs_read
                sys_read
                system_call
                __GI___libc_read

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

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

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

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

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

     0.06%  postgres  [kernel.kallsyms]              [k] generic_segment_checks             
            |
            --- generic_segment_checks
               |          
               |--88.24%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --11.76%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.06%  postgres  libc-2.12.so                   [.] __memcmp_sse4_1                    
            |
            --- __memcmp_sse4_1

     0.06%  postgres  postgres                       [.] hash_search                        
            |
            --- hash_search
               |          
               |--75.00%-- 0x1d72000
               |          
                --25.00%-- 0x1d4108000000000

     0.06%  postgres  [kernel.kallsyms]              [k] touch_atime                        
            |
            --- touch_atime
               |          
               |--96.87%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --3.13%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.06%  postgres  [kernel.kallsyms]              [k] audit_syscall_entry                
            |
            --- audit_syscall_entry
               |          
               |--96.77%-- auditsys
               |          __GI___libc_read
               |          
                --3.23%-- __GI___libc_read

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

     0.05%  postgres  [kernel.kallsyms]              [k] fget_light                         
            |
            --- fget_light
               |          
               |--92.00%-- sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --8.00%-- system_call
                          __GI___libc_read

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

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

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

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

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

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

     0.04%  postgres  [kernel.kallsyms]              [k] kfree                              
            |
            --- kfree
               |          
               |--52.64%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___libc_read
               |          
                --47.36%-- sysret_audit
                          __GI___libc_read

     0.04%  postgres  [kernel.kallsyms]              [k] do_sync_read                       
            |
            --- do_sync_read
               |          
               |--89.48%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --10.52%-- sys_read
                          system_call
                          __GI___libc_read

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

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

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

     0.02%  postgres  [kernel.kallsyms]              [k] _spin_lock                         
            |
            --- _spin_lock
               |          
               |--46.16%-- do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.32%-- slot_getattr
               |          |          
               |          |--16.68%-- slot_deform_tuple
               |          |          
               |          |--16.68%-- HeapTupleSatisfiesMVCC
               |          |          
               |          |--16.67%-- heap_page_prune_opt
               |          |          
               |           --16.65%-- ExecStoreTuple
               |          
               |--15.39%-- tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.02%-- varstr_cmp
               |          |          
               |           --49.98%-- ExecMakeFunctionResultNoSets
               |          
               |--15.38%-- scheduler_tick
               |          update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.03%-- bpchareq
               |          |          
               |           --49.97%-- ExecProject
               |          
               |--15.38%-- 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%-- bpchareq
               |          |          
               |           --49.96%-- file_read_actor
               |                     generic_file_aio_read
               |                     do_sync_read
               |                     vfs_read
               |                     sys_read
               |                     system_call
               |                     __GI___libc_read
               |          
                --7.69%-- hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

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

     0.02%  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
               |          
               |--25.00%-- ExecMakeFunctionResultNoSets
               |          
               |--8.34%-- pg_detoast_datum_packed
               |          
               |--8.34%-- hash_search_with_hash_value
               |          
               |--8.34%-- bcTruelen
               |          
               |--8.33%-- hash_any
               |          
               |--8.33%-- ExecProject
               |          
               |--8.33%-- bpchareq
               |          
               |--8.33%-- bpcharle
               |          
               |--8.33%-- varstr_cmp
               |          
                --8.32%-- generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

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

     0.02%  postgres  [kernel.kallsyms]              [k] apic_timer_interrupt               
            |
            --- apic_timer_interrupt
               |          
               |--20.01%-- bpchareq
               |          
               |--20.00%-- HeapTupleSatisfiesMVCC
               |          
               |--19.98%-- file_read_actor
               |          generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
               |--10.01%-- check_stack_depth
               |          
               |--10.01%-- varstr_cmp
               |          
               |--10.00%-- ExecAgg
               |          
                --10.00%-- hash_any

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

     0.02%  postgres  [kernel.kallsyms]              [k] rcu_process_gp_end                 
            |
            --- rcu_process_gp_end
               |          
               |--90.00%-- __rcu_process_callbacks
               |          rcu_process_callbacks
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--22.24%-- HeapTupleSatisfiesMVCC
               |          |          
               |          |--22.22%-- slot_deform_tuple
               |          |          
               |          |--11.13%-- check_stack_depth
               |          |          
               |          |--11.11%-- slot_getattr
               |          |          
               |          |--11.11%-- varstr_cmp
               |          |          
               |          |--11.10%-- file_read_actor
               |          |          generic_file_aio_read
               |          |          do_sync_read
               |          |          vfs_read
               |          |          sys_read
               |          |          system_call
               |          |          __GI___libc_read
               |          |          
               |           --11.10%-- LWLockAcquire
               |          
                --10.00%-- 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

     0.02%  postgres  [kernel.kallsyms]              [k] unroll_tree_refs                   
            |
            --- unroll_tree_refs
               |          
               |--80.00%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___libc_read
               |          
                --20.00%-- sysret_audit
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] inotify_dentry_parent_queue_event  
            |
            --- inotify_dentry_parent_queue_event
               |          
               |--50.01%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --49.99%-- sys_read
                          system_call
                          __GI___libc_read

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

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

     0.02%  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
               |          
               |--88.88%-- ftrace_raw_event_id_softirq
               |          |          
               |          |--50.00%-- ftrace_raw_event_softirq_exit
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          |          
               |          |          |--25.03%-- hash_search_with_hash_value
               |          |          |          
               |          |          |--25.01%-- slot_deform_tuple
               |          |          |          
               |          |          |--25.00%-- add_abs
               |          |          |          
               |          |           --24.96%-- file_read_actor
               |          |                     generic_file_aio_read
               |          |                     do_sync_read
               |          |                     vfs_read
               |          |                     sys_read
               |          |                     system_call
               |          |                     __GI___libc_read
               |          |          
               |          |--37.48%-- ftrace_raw_event_softirq_entry
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          |          
               |          |          |--33.38%-- bpchareq
               |          |          |          
               |          |          |--33.31%-- hash_search_with_hash_value
               |          |          |          
               |          |           --33.31%-- file_read_actor
               |          |                     generic_file_aio_read
               |          |                     do_sync_read
               |          |                     vfs_read
               |          |                     sys_read
               |          |                     system_call
               |          |                     __GI___libc_read
               |          |          
               |           --12.51%-- 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
               |                     hash_search_with_hash_value
               |          
                --11.12%-- ftrace_raw_event_sched_stat_runtime
                          update_curr
                          task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

     0.02%  postgres  [kernel.kallsyms]              [k] native_read_tsc                    
            |
            --- native_read_tsc
               |          
               |--55.54%-- native_sched_clock
               |          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
               |          |          
               |          |--59.97%-- ftrace_raw_event_softirq_raise
               |          |          raise_softirq
               |          |          |          
               |          |          |--66.61%-- 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
               |          |          |          
               |          |           --33.39%-- run_local_timers
               |          |                     update_process_times
               |          |                     tick_sched_timer
               |          |                     __run_hrtimer
               |          |                     hrtimer_interrupt
               |          |                     smp_apic_timer_interrupt
               |          |                     apic_timer_interrupt
               |          |                     add_abs
               |          |          
               |           --40.03%-- ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     |          
               |                     |--50.05%-- heap_page_prune_opt
               |                     |          
               |                      --49.95%-- LWLockAcquire
               |          
                --44.46%-- read_tsc
                          |          
                          |--50.03%-- ktime_get_update_offsets
                          |          hrtimer_interrupt
                          |          smp_apic_timer_interrupt
                          |          apic_timer_interrupt
                          |          |          
                          |          |--50.00%-- slot_getattr
                          |          |          
                          |           --50.00%-- LWLockAcquire
                          |          
                           --49.97%-- ktime_get
                                     |          
                                     |--50.05%-- tick_sched_timer
                                     |          __run_hrtimer
                                     |          hrtimer_interrupt
                                     |          smp_apic_timer_interrupt
                                     |          apic_timer_interrupt
                                     |          varstr_cmp
                                     |          
                                      --49.95%-- tick_dev_program_event
                                                tick_program_event
                                                hrtimer_interrupt
                                                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

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

     0.02%  postgres  [kernel.kallsyms]              [k] fsnotify                           
            |
            --- fsnotify
               |          
               |--77.78%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --22.22%-- sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] mark_page_accessed                 
            |
            --- mark_page_accessed
               |          
               |--55.56%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --44.44%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] inotify_inode_queue_event          
            |
            --- inotify_inode_queue_event
               |          
               |--77.77%-- vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --22.23%-- sys_read
                          system_call
                          __GI___libc_read

     0.02%  postgres  [kernel.kallsyms]              [k] current_kernel_time                
            |
            --- current_kernel_time
               |          
               |--66.66%-- auditsys
               |          __GI___libc_read
               |          
                --33.34%-- audit_syscall_entry
                          auditsys
                          __GI___libc_read

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

     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
               |          
               |--25.02%-- heap_getnext
               |          
               |--24.97%-- slot_getattr
               |          
               |--12.51%-- HeapTupleSatisfiesMVCC
               |          
               |--12.50%-- ExecMakeFunctionResultNoSets
               |          
               |--12.50%-- advance_aggregates
               |          
                --12.49%-- hash_search_with_hash_value

     0.01%  postgres  [kernel.kallsyms]              [k] __do_softirq                       
            |
            --- __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--12.52%-- slot_deform_tuple
               |          
               |--12.51%-- bpchareq
               |          
               |--12.51%-- heapgetpage
               |          
               |--12.50%-- heap_getnext
               |          
               |--12.49%-- PageIsVerified
               |          
               |--12.49%-- varstr_cmp
               |          
               |--12.49%-- hash_search_with_hash_value
               |          
                --12.49%-- vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

     0.01%  postgres  [kernel.kallsyms]              [k] rb_end_commit                      
            |
            --- rb_end_commit
               |          
               |--85.71%-- ring_buffer_unlock_commit
               |          trace_nowake_buffer_unlock_commit
               |          ftrace_raw_event_id_softirq
               |          |          
               |          |--66.66%-- 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
               |          |          |          
               |          |          |--25.03%-- bcTruelen
               |          |          |          
               |          |          |--25.00%-- ExecStoreTuple
               |          |          |          
               |          |          |--24.99%-- int8_avg_accum
               |          |          |          
               |          |           --24.99%-- slot_deform_tuple
               |          |          
               |           --33.34%-- ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     |          
               |                     |--50.00%-- LWLockAcquire
               |                     |          
               |                      --50.00%-- bcTruelen
               |          
                --14.29%-- trace_nowake_buffer_unlock_commit
                          ftrace_raw_event_sched_stat_runtime
                          update_curr
                          task_tick_fair
                          scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_getattr

     0.01%  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
                ftrace_raw_event_id_softirq
               |          
               |--57.17%-- ftrace_raw_event_softirq_raise
               |          raise_softirq
               |          |          
               |          |--50.02%-- rcu_check_callbacks
               |          |          update_process_times
               |          |          tick_sched_timer
               |          |          __run_hrtimer
               |          |          hrtimer_interrupt
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          |          
               |          |          |--50.01%-- MemoryContextReset
               |          |          |          
               |          |           --49.99%-- bcTruelen
               |          |          
               |           --49.98%-- run_local_timers
               |                     update_process_times
               |                     tick_sched_timer
               |                     __run_hrtimer
               |                     hrtimer_interrupt
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     |          
               |                     |--50.03%-- slot_getattr
               |                     |          
               |                      --49.97%-- slot_deform_tuple
               |          
                --42.83%-- ftrace_raw_event_softirq_entry
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--33.37%-- HeapTupleSatisfiesMVCC
                          |          
                          |--33.32%-- slot_deform_tuple
                          |          
                           --33.31%-- pgstat_init_function_usage

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] rcu_process_callbacks              
            |
            --- rcu_process_callbacks
               |          
               |--66.66%-- call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--25.04%-- HeapTupleSatisfiesMVCC
               |          |          
               |          |--25.00%-- LWLockRelease
               |          |          
               |          |--24.99%-- file_read_actor
               |          |          generic_file_aio_read
               |          |          do_sync_read
               |          |          vfs_read
               |          |          sys_read
               |          |          system_call
               |          |          __GI___libc_read
               |          |          
               |           --24.98%-- sysret_audit
               |                     __GI___libc_read
               |          
                --33.34%-- __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          |          
                          |--50.02%-- HeapTupleSatisfiesMVCC
                          |          
                           --49.98%-- slot_deform_tuple

     0.01%  postgres  [kernel.kallsyms]              [k] native_write_msr_safe              
            |
            --- native_write_msr_safe
               |          
               |--83.30%-- 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
               |          |          
               |          |--20.02%-- bpchareq
               |          |          
               |          |--20.01%-- AllocSetAlloc
               |          |          
               |          |--19.99%-- ExecClearTuple
               |          |          
               |          |--19.99%-- hash_search_with_hash_value
               |          |          
               |           --19.99%-- lc_collate_is_c
               |          
                --16.70%-- intel_pmu_enable_all
                          x86_pmu_enable
                          perf_pmu_enable
                          |          
                          |--99.73%-- 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
                          |          slot_deform_tuple
                           --0.27%-- [...]

     0.01%  postgres  [kernel.kallsyms]              [k] trace_clock_local                  
            |
            --- trace_clock_local
               |          
               |--83.35%-- rb_reserve_next_event
               |          ring_buffer_lock_reserve
               |          trace_buffer_lock_reserve
               |          trace_current_buffer_lock_reserve
               |          ftrace_raw_event_id_softirq
               |          |          
               |          |--40.02%-- ftrace_raw_event_softirq_entry
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          slot_deform_tuple
               |          |          
               |          |--40.01%-- ftrace_raw_event_softirq_exit
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          HeapTupleSatisfiesMVCC
               |          |          
               |           --19.98%-- ftrace_raw_event_softirq_raise
               |                     raise_softirq
               |                     rcu_check_callbacks
               |                     update_process_times
               |                     tick_sched_timer
               |                     __run_hrtimer
               |                     hrtimer_interrupt
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     slot_getattr
               |          
                --16.65%-- 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
                          find_get_page
                          generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] path_put                           
            |
            --- path_put
               |          
               |--50.00%-- __audit_syscall_exit
               |          sysret_audit
               |          __GI___libc_read
               |          
                --50.00%-- sysret_audit
                          __GI___libc_read

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

     0.01%  postgres  [kernel.kallsyms]              [k] __rcu_process_callbacks            
            |
            --- __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--20.01%-- hash_search_with_hash_value
               |          
               |--20.01%-- ExecScan
               |          
               |--20.01%-- bcTruelen
               |          
               |--19.99%-- execTuplesMatch
               |          
                --19.99%-- slot_deform_tuple

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

     0.01%  postgres  [kernel.kallsyms]              [k] update_cfs_shares                  
            |
            --- update_cfs_shares
                task_tick_fair
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--20.02%-- 0x7fff597448a4
               |          
               |--20.01%-- ExecStoreMinimalTuple
               |          
               |--20.00%-- ExecMakeFunctionResultNoSets
               |          
               |--19.99%-- 0x7fff597448d4
               |          
                --19.98%-- add_abs

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

     0.01%  postgres  [kernel.kallsyms]              [k] __fsnotify_parent                  
            |
            --- __fsnotify_parent
               |          
               |--59.99%-- sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --40.01%-- vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] _cond_resched                      
            |
            --- _cond_resched
               |          
               |--79.99%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --20.01%-- do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

     0.01%  postgres  [kernel.kallsyms]              [k] check_for_new_grace_period         
            |
            --- check_for_new_grace_period
                __rcu_process_callbacks
                rcu_process_callbacks
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--25.02%-- slot_deform_tuple
               |          
               |--25.01%-- HeapTupleSatisfiesMVCC
               |          
               |--24.99%-- heapgetpage
               |          
                --24.98%-- slot_getattr

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

     0.01%  postgres  [kernel.kallsyms]              [k] tracing_generic_entry_update       
            |
            --- tracing_generic_entry_update
               |          
               |--74.99%-- trace_current_buffer_lock_reserve
               |          ftrace_raw_event_id_softirq
               |          |          
               |          |--66.64%-- 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%-- heapgetpage
               |          |          |          
               |          |           --49.98%-- heap_getnext
               |          |          
               |           --33.36%-- ftrace_raw_event_softirq_entry
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     check_stack_depth
               |          
                --25.01%-- 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
                          HeapTupleSatisfiesMVCC

     0.01%  postgres  [kernel.kallsyms]              [k] run_timer_softirq                  
            |
            --- run_timer_softirq
               |          
               |--75.01%-- __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.36%-- heap_getnext
               |          |          
               |          |--33.32%-- slot_deform_tuple
               |          |          
               |           --33.31%-- int64_to_numericvar
               |          
                --24.99%-- call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

     0.01%  postgres  [kernel.kallsyms]              [k] ring_buffer_lock_reserve           
            |
            --- ring_buffer_lock_reserve
                trace_buffer_lock_reserve
                trace_current_buffer_lock_reserve
                ftrace_raw_event_id_softirq
               |          
               |--74.97%-- 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
               |          |          
               |          |--33.36%-- varstr_cmp
               |          |          
               |          |--33.32%-- ExecMakeFunctionResultNoSets
               |          |          
               |           --33.32%-- hash_search_with_hash_value
               |          
                --25.03%-- ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecMakeFunctionResultNoSets

     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
               |          
               |--25.01%-- hash_search_with_hash_value
               |          
               |--25.01%-- HeapTupleSatisfiesMVCC
               |          
               |--25.00%-- bcTruelen
               |          
                --24.97%-- slot_deform_tuple

     0.01%  postgres  [kernel.kallsyms]              [k] _spin_unlock_irqrestore            
            |
            --- _spin_unlock_irqrestore
               |          
               |--75.00%-- ntp_tick_length
               |          do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.36%-- varstr_cmp
               |          |          
               |          |--33.32%-- HeapTupleSatisfiesMVCC
               |          |          
               |           --33.32%-- ExecProject
               |          
                --25.00%-- __rcu_process_callbacks
                          rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          bcTruelen

     0.01%  postgres  [kernel.kallsyms]              [k] _spin_lock_irqsave                 
            |
            --- _spin_lock_irqsave
               |          
               |--74.97%-- ntp_tick_length
               |          do_timer
               |          tick_do_update_jiffies64
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--33.35%-- bpchareq
               |          |          
               |          |--33.32%-- file_read_actor
               |          |          generic_file_aio_read
               |          |          do_sync_read
               |          |          vfs_read
               |          |          sys_read
               |          |          system_call
               |          |          __GI___libc_read
               |          |          
               |           --33.32%-- varstr_cmp
               |          
                --25.03%-- __rcu_process_callbacks
                          rcu_process_callbacks
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          slot_deform_tuple

     0.01%  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
               |          
               |--25.03%-- slot_deform_tuple
               |          
               |--25.00%-- HeapTupleSatisfiesMVCC
               |          
               |--24.99%-- varstr_cmp
               |          
                --24.99%-- ExecScan

     0.01%  postgres  [kernel.kallsyms]              [k] ring_buffer_event_data             
            |
            --- ring_buffer_event_data
               |          
               |--25.02%-- 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
               |          slot_deform_tuple
               |          
               |--25.00%-- trace_current_buffer_lock_reserve
               |          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
               |          hash_search_with_hash_value
               |          
               |--25.00%-- 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
               |          CheckForSerializableConflictOut
               |          
                --24.97%-- 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
                          hash_search_with_hash_value

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] copy_user_generic                  
            |
            --- copy_user_generic
               |          
               |--50.02%-- generic_file_aio_read
               |          do_sync_read
               |          vfs_read
               |          sys_read
               |          system_call
               |          __GI___libc_read
               |          
                --49.98%-- file_read_actor
                          generic_file_aio_read
                          do_sync_read
                          vfs_read
                          sys_read
                          system_call
                          __GI___libc_read

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] ktime_get_update_offsets           
            |
            --- ktime_get_update_offsets
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.36%-- ExecMakeFunctionResultNoSets
               |          
               |--33.34%-- ExecEvalConst
               |          
                --33.30%-- vread_tsc

     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
               |          
               |--33.34%-- varstr_cmp
               |          
               |--33.34%-- ExecScan
               |          
                --33.31%-- ExecQual

     0.01%  postgres  [kernel.kallsyms]              [k] ktime_get                          
            |
            --- ktime_get
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.36%-- XidInMVCCSnapshot
               |          
               |--33.34%-- HeapTupleSatisfiesMVCC
               |          
                --33.30%-- ExecScan

     0.01%  postgres  [kernel.kallsyms]              [k] __rcu_pending                      
            |
            --- __rcu_pending
                rcu_check_callbacks
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.35%-- ExecScan
               |          
               |--33.33%-- ExecQual
               |          
                --33.32%-- check_stack_depth

     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
               |          
               |--33.36%-- heap_getnext
               |          
               |--33.33%-- CheckForSerializableConflictOut
               |          
                --33.30%-- hash_search_with_hash_value

     0.01%  postgres  [kernel.kallsyms]              [k] save_args                          
            |
            --- save_args
               |          
               |--33.37%-- varstr_cmp
               |          
               |--33.34%-- ExecProject
               |          
                --33.29%-- ExecQual

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

     0.01%  postgres  [kernel.kallsyms]              [k] trace_nowake_buffer_unlock_commit  
            |
            --- trace_nowake_buffer_unlock_commit
                ftrace_raw_event_id_softirq
               |          
               |--66.63%-- ftrace_raw_event_softirq_entry
               |          __do_softirq
               |          call_softirq
               |          do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          |          
               |          |--50.03%-- int8_numeric
               |          |          
               |           --49.97%-- varstr_cmp
               |          
                --33.37%-- ftrace_raw_event_softirq_exit
                          __do_softirq
                          call_softirq
                          do_softirq
                          irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          bcTruelen

     0.01%  postgres  [kernel.kallsyms]              [k] account_process_tick               
            |
            --- account_process_tick
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--33.37%-- add_abs
               |          
               |--33.31%-- vread_tsc
               |          
                --33.31%-- hash_search_with_hash_value

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

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

     0.01%  postgres  [kernel.kallsyms]              [k] filter_current_check_discard       
            |
            --- filter_current_check_discard
               |          
               |--66.67%-- ftrace_raw_event_id_softirq
               |          |          
               |          |--50.04%-- 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
               |          |          slot_deform_tuple
               |          |          
               |           --49.96%-- ftrace_raw_event_softirq_exit
               |                     __do_softirq
               |                     call_softirq
               |                     do_softirq
               |                     irq_exit
               |                     smp_apic_timer_interrupt
               |                     apic_timer_interrupt
               |                     slot_getattr
               |          
                --33.33%-- 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
                          varstr_cmp

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

     0.01%  postgres  [kernel.kallsyms]              [k] ftrace_trace_userstack             
            |
            --- ftrace_trace_userstack
               |          
               |--66.68%-- trace_nowake_buffer_unlock_commit
               |          ftrace_raw_event_id_softirq
               |          |          
               |          |--50.02%-- ftrace_raw_event_softirq_entry
               |          |          __do_softirq
               |          |          call_softirq
               |          |          do_softirq
               |          |          irq_exit
               |          |          smp_apic_timer_interrupt
               |          |          apic_timer_interrupt
               |          |          HeapTupleSatisfiesMVCC
               |          |          
               |           --49.98%-- 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
               |          
                --33.32%-- 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
                          bpcharle

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

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_softirq_exit      
            |
            --- ftrace_raw_event_softirq_exit
                call_softirq
                do_softirq
                irq_exit
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- heap_getnext
               |          
                --49.99%-- bpcharle

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

     0.00%  postgres  [kernel.kallsyms]              [k] smp_apic_timer_interrupt           
            |
            --- smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.01%-- SeqNext
               |          
                --49.99%-- HeapTupleSatisfiesMVCC

     0.00%  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
               |          
               |--50.03%-- varstr_cmp
               |          
                --49.97%-- ExecQual

     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
               |          
               |--50.03%-- HeapTupleSatisfiesMVCC
               |          
                --49.97%-- advance_transition_function

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

     0.00%  postgres  [kernel.kallsyms]              [k] enqueue_hrtimer                    
            |
            --- enqueue_hrtimer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.02%-- bpcharle
               |          
                --49.98%-- ExecScan

     0.00%  postgres  [kernel.kallsyms]              [k] irq_exit                           
            |
            --- irq_exit
               |          
               |--50.02%-- apic_timer_interrupt
               |          ExecMakeFunctionResultNoSets
               |          
                --49.98%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          heap_page_prune_opt

     0.00%  postgres  [kernel.kallsyms]              [k] rb_erase                           
            |
            --- rb_erase
                __remove_hrtimer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.05%-- bcTruelen
               |          
                --49.95%-- 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] hrtimer_run_queues                 
            |
            --- hrtimer_run_queues
                run_local_timers
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.04%-- HeapTupleSatisfiesMVCC
               |          
                --49.96%-- 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] call_softirq                       
            |
            --- call_softirq
               |          
               |--50.00%-- do_softirq
               |          irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          bpchareq
               |          
                --50.00%-- irq_exit
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          bcTruelen

     0.00%  postgres  [kernel.kallsyms]              [k] cap_file_permission                
            |
            --- cap_file_permission
                rw_verify_area
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] update_cpu_load                    
            |
            --- update_cpu_load
               |          
               |--50.04%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          InstrStartNode
               |          
                --49.96%-- scheduler_tick
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecStoreMinimalTuple

     0.00%  postgres  [kernel.kallsyms]              [k] do_softirq                         
            |
            --- do_softirq
               |          
               |--50.05%-- irq_exit
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          ReadBuffer_common
               |          
                --49.95%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecStoreTuple

     0.00%  postgres  [kernel.kallsyms]              [k] dput                               
            |
            --- dput
               |          
               |--50.00%-- path_put
               |          __audit_syscall_exit
               |          sysret_audit
               |          __GI___libc_read
               |          
                --50.00%-- __audit_syscall_exit
                          sysret_audit
                          __GI___libc_read

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

     0.00%  postgres  [kernel.kallsyms]              [k] raise_softirq                      
            |
            --- raise_softirq
               |          
               |--50.00%-- update_process_times
               |          tick_sched_timer
               |          __run_hrtimer
               |          hrtimer_interrupt
               |          smp_apic_timer_interrupt
               |          apic_timer_interrupt
               |          execTuplesMatch
               |          
                --50.00%-- run_local_timers
                          update_process_times
                          tick_sched_timer
                          __run_hrtimer
                          hrtimer_interrupt
                          smp_apic_timer_interrupt
                          apic_timer_interrupt
                          sysret_audit
                          __GI___libc_read

     0.00%  postgres  [kernel.kallsyms]              [k] native_sched_clock                 
            |
            --- native_sched_clock
               |          
               |--50.01%-- 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
               |          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
               |          slot_deform_tuple
               |          
                --49.99%-- 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
                          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
                          hash_search_with_hash_value

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

     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
               |          
               |--50.00%-- ExecQual
               |          
                --50.00%-- ExecScan

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

     0.00%  postgres  [kernel.kallsyms]              [k] hrtimer_interrupt                  
            |
            --- hrtimer_interrupt
               |          
               |--50.17%-- apic_timer_interrupt
               |          bcTruelen
               |          
                --49.83%-- smp_apic_timer_interrupt
                          apic_timer_interrupt
                          ExecEvalScalarVarFast

     0.00%  postgres  [kernel.kallsyms]              [k] __run_hrtimer                      
            |
            --- __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--50.15%-- heapgetpage
               |          
                --49.85%-- lc_collate_is_c

     0.00%  postgres  [kernel.kallsyms]              [k] __percpu_counter_add               
            |
            --- __percpu_counter_add
                account_user_time
                account_process_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
               |          
               |--51.11%-- hash_search
               |          
                --48.89%-- heap_getnext

     0.00%  postgres  [kernel.kallsyms]              [k] __do_page_fault                    
            |
            --- __do_page_fault
                do_page_fault
                page_fault
                element_alloc

     0.00%  postgres  [kernel.kallsyms]              [k] __list_add                         
            |
            --- __list_add
                account_entity_enqueue
                enqueue_entity
                enqueue_task_fair
                enqueue_task
                activate_task
                try_to_wake_up
                default_wake_function
                autoremove_wake_function
                __wake_up_common
                __wake_up
                0xffffffffa00ebad7
                0xffffffffa016c4eb
                ExecMakeFunctionResultNoSets

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

     0.00%  postgres  [kernel.kallsyms]              [k] read_tsc                           
            |
            --- read_tsc
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                int64_to_numericvar

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

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

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

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

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

     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
                slot_getattr

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

     0.00%  postgres  [kernel.kallsyms]              [k] perf_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
                heap_getnext

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

     0.00%  postgres  [kernel.kallsyms]              [k] rcu_irq_enter                      
            |
            --- rcu_irq_enter
                irq_enter
                smp_apic_timer_interrupt
                apic_timer_interrupt
                slot_getattr

     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
                slot_getattr

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

     0.00%  postgres  [nf_defrag_ipv4]               [k] ipv4_conntrack_defrag              
            |
            --- ipv4_conntrack_defrag
                nf_iterate
                nf_hook_slow
                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
                hash_search_with_hash_value

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

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_id_softirq        
            |
            --- 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
                varstr_cmp

     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
                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] run_local_timers                   
            |
            --- run_local_timers
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                ExecEvalScalarVarFast

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

     0.00%  postgres  [kernel.kallsyms]              [k] ring_buffer_unlock_commit          
            |
            --- ring_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
                advance_aggregates

     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
                find_get_page
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

     0.00%  postgres  [nf_conntrack_ipv4]            [k] icmp_pkt_to_tuple                  
            |
            --- icmp_pkt_to_tuple
                nf_ct_get_tuple
                nf_conntrack_in
                ipv4_conntrack_in
                nf_iterate
                nf_hook_slow
                ip_rcv
                __netif_receive_skb
                process_backlog
                net_rx_action
                __do_softirq
                call_softirq
                do_softirq
                irq_exit
                do_IRQ
                ret_from_intr
                palloc

     0.00%  postgres  [kernel.kallsyms]              [k] update_cfs_load                    
            |
            --- update_cfs_load
                task_tick_fair
                scheduler_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

     0.00%  postgres  [kernel.kallsyms]              [k] ftrace_raw_event_sched_stat_runtime
            |
            --- ftrace_raw_event_sched_stat_runtime
                update_curr
                task_tick_fair
                scheduler_tick
                update_process_times
                tick_sched_timer
                __run_hrtimer
                hrtimer_interrupt
                smp_apic_timer_interrupt
                apic_timer_interrupt
                make_result

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

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

     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
                file_read_actor
                generic_file_aio_read
                do_sync_read
                vfs_read
                sys_read
                system_call
                __GI___libc_read

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

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

     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
                ExecQual

     0.00%  postgres  [kernel.kallsyms]              [k] alloc_pages_vma                    
            |
            --- alloc_pages_vma
                handle_pte_fault
                handle_mm_fault
                __do_page_fault
                do_page_fault
                page_fault
                palloc0

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

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

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

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

     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)
#
