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Message-ID: <20190118084456.GA10690@shao2-debian>
Date: Fri, 18 Jan 2019 16:44:56 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Waiman Long <longman@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Alexey Dobriyan <adobriyan@...il.com>,
Luis Chamberlain <mcgrof@...nel.org>,
Kees Cook <keescook@...omium.org>,
Jonathan Corbet <corbet@....net>, linux-kernel@...r.kernel.org,
linux-doc@...r.kernel.org, linux-fsdevel@...r.kernel.org,
Davidlohr Bueso <dave@...olabs.net>,
Miklos Szeredi <miklos@...redi.hu>,
Daniel Colascione <dancol@...gle.com>,
Dave Chinner <david@...morbit.com>,
Randy Dunlap <rdunlap@...radead.org>,
Waiman Long <longman@...hat.com>, lkp@...org
Subject: [LKP] [/proc/stat] 3047027b34: reaim.jobs_per_min -4.8% regression
Greeting,
FYI, we noticed a -4.8% regression of reaim.jobs_per_min due to commit:
commit: 3047027b34b8c6404b509903058b89836093acc7 ("[PATCH 2/2] /proc/stat: Add sysctl parameter to control irq counts latency")
url: https://github.com/0day-ci/linux/commits/Waiman-Long/proc-stat-Reduce-irqs-counting-performance-overhead/20190108-104818
in testcase: reaim
on test machine: 56 threads Intel(R) Xeon(R) CPU E5-2695 v3 @ 2.30GHz with 256G memory
with following parameters:
runtime: 300s
nr_task: 5000
test: shared_memory
cpufreq_governor: performance
ucode: 0x3d
test-description: REAIM is an updated and improved version of AIM 7 benchmark.
test-url: https://sourceforge.net/projects/re-aim-7/
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_task/rootfs/runtime/tbox_group/test/testcase/ucode:
gcc-7/performance/x86_64-rhel-7.2/5000/debian-x86_64-2018-04-03.cgz/300s/lkp-hsw-ep5/shared_memory/reaim/0x3d
commit:
51e8bce392 ("/proc/stat: Extract irqs counting code into show_stat_irqs()")
3047027b34 ("/proc/stat: Add sysctl parameter to control irq counts latency")
51e8bce392dd2cc9 3047027b34b8c6404b50990305
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
1:4 -25% :4 kmsg.igb#:#:#:exceed_max#second
%stddev %change %stddev
\ | \
101.96 +7.5% 109.60 reaim.child_systime
33.32 -1.8% 32.73 reaim.child_utime
5534451 -4.8% 5271308 reaim.jobs_per_min
1106 -4.8% 1054 reaim.jobs_per_min_child
5800927 -4.9% 5517884 reaim.max_jobs_per_min
5.42 +5.0% 5.69 reaim.parent_time
1.51 +5.3% 1.59 reaim.std_dev_time
29374932 -2.8% 28558608 reaim.time.minor_page_faults
1681 +1.6% 1708 reaim.time.percent_of_cpu_this_job_got
3841 +4.5% 4012 reaim.time.system_time
1234 -4.4% 1180 reaim.time.user_time
18500000 -2.7% 18000000 reaim.workload
5495296 ± 9% -9.5% 4970496 meminfo.DirectMap2M
5142 ± 18% -43.2% 2920 ± 46% numa-vmstat.node0.nr_shmem
29.00 ± 32% +56.9% 45.50 ± 10% vmstat.procs.r
67175 ± 37% +66.6% 111910 ± 20% numa-meminfo.node0.AnonHugePages
20591 ± 18% -43.2% 11691 ± 46% numa-meminfo.node0.Shmem
64688 ± 6% -36.8% 40906 ± 19% slabinfo.kmalloc-8.active_objs
64691 ± 6% -36.8% 40908 ± 19% slabinfo.kmalloc-8.num_objs
37.36 ± 7% +11.1% 41.53 ± 4% boot-time.boot
29.15 ± 6% +14.3% 33.31 ± 3% boot-time.dhcp
847.73 ± 9% +12.9% 957.09 ± 4% boot-time.idle
202.50 ±100% +101.7% 408.50 proc-vmstat.nr_mlock
8018 ± 9% -12.3% 7034 ± 2% proc-vmstat.nr_shmem
29175944 -2.8% 28369676 proc-vmstat.numa_hit
29170351 -2.8% 28364111 proc-vmstat.numa_local
5439 ± 5% -18.7% 4423 ± 7% proc-vmstat.pgactivate
30220220 -2.8% 29374906 proc-vmstat.pgalloc_normal
30182224 -2.7% 29368266 proc-vmstat.pgfault
30186671 -2.8% 29341792 proc-vmstat.pgfree
69510 ± 12% -34.2% 45759 ± 33% sched_debug.cfs_rq:/.load.avg
30.21 ± 24% -33.6% 20.05 ± 20% sched_debug.cfs_rq:/.runnable_load_avg.avg
66447 ± 12% -37.6% 41460 ± 37% sched_debug.cfs_rq:/.runnable_weight.avg
12.35 ± 4% +88.0% 23.22 ± 15% sched_debug.cpu.clock.stddev
12.35 ± 4% +88.0% 23.22 ± 15% sched_debug.cpu.clock_task.stddev
30.06 ± 12% -26.5% 22.10 ± 13% sched_debug.cpu.cpu_load[0].avg
29.37 ± 9% -22.6% 22.72 ± 13% sched_debug.cpu.cpu_load[1].avg
28.71 ± 6% -21.1% 22.66 ± 16% sched_debug.cpu.cpu_load[2].avg
17985 -12.0% 15823 ± 2% sched_debug.cpu.curr->pid.max
67478 ± 6% -32.5% 45531 ± 24% sched_debug.cpu.load.avg
10369 ± 49% -100.0% 0.00 sched_debug.cpu.load.min
0.21 ± 34% -100.0% 0.00 sched_debug.cpu.nr_running.min
12.98 -16.3% 10.86 ± 11% perf-stat.i.MPKI
5.712e+09 -3.8% 5.492e+09 perf-stat.i.branch-instructions
1.024e+08 -3.7% 98557208 perf-stat.i.branch-misses
8.17 +0.4 8.58 ± 2% perf-stat.i.cache-miss-rate%
7839589 +10.5% 8659798 perf-stat.i.cache-misses
86324420 +3.8% 89595898 ± 2% perf-stat.i.cache-references
1.55 ± 2% -4.0% 1.49 perf-stat.i.cpi
2290 -1.9% 2246 perf-stat.i.cpu-migrations
4667 -10.9% 4160 perf-stat.i.cycles-between-cache-misses
8.749e+09 -3.9% 8.409e+09 perf-stat.i.dTLB-loads
527660 ± 3% -15.0% 448539 ± 5% perf-stat.i.dTLB-store-misses
5.747e+09 -4.3% 5.499e+09 perf-stat.i.dTLB-stores
53047071 -3.5% 51190942 perf-stat.i.iTLB-load-misses
20576112 -13.7% 17759009 ± 2% perf-stat.i.iTLB-loads
3.207e+10 -3.9% 3.083e+10 perf-stat.i.instructions
0.77 -2.3% 0.75 perf-stat.i.ipc
99933 -3.8% 96127 perf-stat.i.minor-faults
4325719 +5.6% 4568226 perf-stat.i.node-load-misses
52.39 -2.0 50.36 perf-stat.i.node-store-miss-rate%
1411700 +20.9% 1706321 perf-stat.i.node-store-misses
883790 +34.1% 1184836 perf-stat.i.node-stores
99933 -3.8% 96127 perf-stat.i.page-faults
2.69 +7.9% 2.91 perf-stat.overall.MPKI
9.08 +0.6 9.67 ± 2% perf-stat.overall.cache-miss-rate%
1.13 +5.0% 1.19 perf-stat.overall.cpi
4633 -8.6% 4233 perf-stat.overall.cycles-between-cache-misses
0.01 ± 2% -0.0 0.01 ± 4% perf-stat.overall.dTLB-store-miss-rate%
72.05 +2.2 74.24 perf-stat.overall.iTLB-load-miss-rate%
0.88 -4.8% 0.84 perf-stat.overall.ipc
78.12 +1.4 79.52 perf-stat.overall.node-load-miss-rate%
61.49 -2.5 59.01 perf-stat.overall.node-store-miss-rate%
5.688e+09 -3.8% 5.471e+09 perf-stat.ps.branch-instructions
1.02e+08 -3.7% 98177745 perf-stat.ps.branch-misses
7807912 +10.5% 8626353 perf-stat.ps.cache-misses
85999504 +3.8% 89266688 ± 2% perf-stat.ps.cache-references
2282 -1.9% 2239 perf-stat.ps.cpu-migrations
8.713e+09 -3.9% 8.376e+09 perf-stat.ps.dTLB-loads
525761 ± 3% -15.0% 446967 ± 5% perf-stat.ps.dTLB-store-misses
5.723e+09 -4.3% 5.478e+09 perf-stat.ps.dTLB-stores
52823322 -3.5% 50990190 perf-stat.ps.iTLB-load-misses
20490261 -13.7% 17689923 ± 2% perf-stat.ps.iTLB-loads
3.193e+10 -3.8% 3.071e+10 perf-stat.ps.instructions
99560 -3.8% 95786 perf-stat.ps.minor-faults
4308031 +5.6% 4550453 perf-stat.ps.node-load-misses
1405805 +20.9% 1699670 perf-stat.ps.node-store-misses
880319 +34.1% 1180378 perf-stat.ps.node-stores
99560 -3.8% 95786 perf-stat.ps.page-faults
9.664e+12 -2.8% 9.397e+12 perf-stat.total.instructions
33.09 ± 7% -25.0 8.10 ± 45% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
32.21 ± 7% -24.3 7.92 ± 45% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
22.36 ± 7% -17.1 5.24 ± 49% perf-profile.calltrace.cycles-pp.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
10.57 ± 5% -8.3 2.31 ± 48% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64
9.60 ± 4% -7.6 2.03 ± 49% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret
3.68 ± 8% -3.3 0.43 ±102% perf-profile.calltrace.cycles-pp.security_ipc_permission.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.37 ± 9% -2.8 1.60 ± 50% perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.30 ± 2% -1.9 0.44 ±102% perf-profile.calltrace.cycles-pp.security_sem_semop.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.10 ± 3% -1.6 3.46 ± 10% perf-profile.calltrace.cycles-pp.ipc_has_perm.security_ipc_permission.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.20 -1.3 1.95 ± 23% perf-profile.calltrace.cycles-pp.avc_has_perm.ipc_has_perm.security_ipc_permission.do_semtimedop.do_syscall_64
2.12 ± 3% -0.4 1.76 ± 4% perf-profile.calltrace.cycles-pp.avc_has_perm.ipc_has_perm.security_sem_semop.do_semtimedop.do_syscall_64
1.03 ± 2% -0.1 0.94 ± 3% perf-profile.calltrace.cycles-pp.__do_page_fault.do_page_fault.page_fault
1.06 ± 2% -0.1 0.97 ± 3% perf-profile.calltrace.cycles-pp.do_page_fault.page_fault
1.06 ± 2% -0.1 0.98 ± 3% perf-profile.calltrace.cycles-pp.page_fault
0.91 ± 3% -0.1 0.82 ± 3% perf-profile.calltrace.cycles-pp.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
0.86 ± 3% -0.1 0.78 ± 3% perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.__do_page_fault.do_page_fault.page_fault
0.61 ± 12% +0.2 0.79 ± 12% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry
0.61 ± 10% +0.2 0.79 ± 10% perf-profile.calltrace.cycles-pp.shm_close.remove_vma.__do_munmap.ksys_shmdt.do_syscall_64
0.67 ± 11% +0.2 0.86 ± 10% perf-profile.calltrace.cycles-pp.apic_timer_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
0.40 ± 57% +0.2 0.62 ± 8% perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.do_shmat.__x64_sys_shmat.do_syscall_64
0.40 ± 57% +0.2 0.62 ± 7% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.do_shmat.__x64_sys_shmat
0.43 ± 57% +0.2 0.66 ± 7% perf-profile.calltrace.cycles-pp.down_write.do_shmat.__x64_sys_shmat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.41 ± 57% +0.3 0.67 ± 9% perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.shm_close.remove_vma.__do_munmap
0.40 ± 57% +0.3 0.66 ± 7% perf-profile.calltrace.cycles-pp.down_write.ipcget.__x64_sys_shmget.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.41 ± 57% +0.3 0.67 ± 9% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.shm_close.remove_vma
0.44 ± 57% +0.3 0.71 ± 9% perf-profile.calltrace.cycles-pp.down_write.shm_close.remove_vma.__do_munmap.ksys_shmdt
0.26 ±100% +0.4 0.67 ± 8% perf-profile.calltrace.cycles-pp.dput.__fput.task_work_run.exit_to_usermode_loop.do_syscall_64
0.28 ±100% +0.4 0.71 ± 7% perf-profile.calltrace.cycles-pp.__might_fault._copy_from_user.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.58 ± 10% +0.4 1.03 ± 6% perf-profile.calltrace.cycles-pp.shmctl_down.ksys_shmctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmctl
0.59 ± 10% +0.5 1.05 ± 6% perf-profile.calltrace.cycles-pp.ksys_shmctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmctl
0.13 ±173% +0.5 0.62 ± 7% perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.ipcget.__x64_sys_shmget.do_syscall_64
0.13 ±173% +0.5 0.62 ± 7% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.ipcget.__x64_sys_shmget
0.12 ±173% +0.5 0.66 ± 8% perf-profile.calltrace.cycles-pp.dentry_kill.dput.__fput.task_work_run.exit_to_usermode_loop
0.00 +0.6 0.58 ± 7% perf-profile.calltrace.cycles-pp.copy_user_generic_unrolled._copy_from_user.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.6 0.60 ± 7% perf-profile.calltrace.cycles-pp.unmap_region.__do_munmap.ksys_shmdt.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.6 0.61 ± 7% perf-profile.calltrace.cycles-pp.wait_consider_task.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.00 +0.6 0.62 ± 4% perf-profile.calltrace.cycles-pp.semctl_down.ksys_semctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.semctl
0.75 ± 8% +0.6 1.38 ± 8% perf-profile.calltrace.cycles-pp.__x64_sys_semop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
0.00 +0.6 0.65 ± 9% perf-profile.calltrace.cycles-pp.ipcperms.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
0.00 +0.6 0.65 ± 8% perf-profile.calltrace.cycles-pp.__dentry_kill.dentry_kill.dput.__fput.task_work_run
0.89 ± 11% +0.7 1.57 ± 8% perf-profile.calltrace.cycles-pp.do_shmat.__x64_sys_shmat.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmat
0.90 ± 11% +0.7 1.58 ± 8% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmat
0.90 ± 10% +0.7 1.58 ± 8% perf-profile.calltrace.cycles-pp.__x64_sys_shmat.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmat
0.00 +0.7 0.68 ± 5% perf-profile.calltrace.cycles-pp.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.7 0.69 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.wait
0.00 +0.7 0.69 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait
0.00 +0.7 0.69 ± 6% perf-profile.calltrace.cycles-pp.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait
0.00 +0.7 0.69 ± 6% perf-profile.calltrace.cycles-pp.kernel_wait4.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait
0.90 ± 11% +0.7 1.59 ± 8% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.shmat
0.00 +0.7 0.69 ± 5% perf-profile.calltrace.cycles-pp.wait
0.27 ±100% +0.7 0.99 ± 7% perf-profile.calltrace.cycles-pp.perform_atomic_semop.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
0.95 ± 11% +0.7 1.67 ± 8% perf-profile.calltrace.cycles-pp.shmat
0.00 +0.7 0.73 ± 6% perf-profile.calltrace.cycles-pp.ipcget.ksys_semget.do_syscall_64.entry_SYSCALL_64_after_hwframe.semget
0.00 +0.7 0.74 ± 8% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmctl
0.72 ± 9% +0.7 1.46 ± 7% perf-profile.calltrace.cycles-pp._raw_spin_lock.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
0.00 +0.8 0.75 ± 5% perf-profile.calltrace.cycles-pp.ksys_semget.do_syscall_64.entry_SYSCALL_64_after_hwframe.semget
0.00 +0.8 0.76 ± 8% perf-profile.calltrace.cycles-pp.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmctl
0.89 ± 9% +0.8 1.65 ± 9% perf-profile.calltrace.cycles-pp.__do_munmap.ksys_shmdt.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmdt
0.00 +0.8 0.76 ± 5% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.semget
0.00 +0.8 0.76 ± 5% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.semget
0.90 ± 9% +0.8 1.68 ± 9% perf-profile.calltrace.cycles-pp.ksys_shmdt.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmdt
0.00 +0.8 0.78 ± 6% perf-profile.calltrace.cycles-pp.ksys_semctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.semctl
0.00 +0.8 0.80 ± 5% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.semctl
0.00 +0.8 0.80 ± 5% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.semctl
0.00 +0.8 0.85 ± 5% perf-profile.calltrace.cycles-pp.semget
0.97 ± 9% +0.8 1.82 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmctl
0.97 ± 9% +0.8 1.82 ± 7% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.shmctl
0.94 ± 10% +0.9 1.79 ± 6% perf-profile.calltrace.cycles-pp._copy_from_user.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
1.04 ± 9% +0.9 1.91 ± 6% perf-profile.calltrace.cycles-pp.ipcget.__x64_sys_shmget.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmget
1.05 ± 9% +0.9 1.92 ± 5% perf-profile.calltrace.cycles-pp.__x64_sys_shmget.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmget
1.05 ± 9% +0.9 1.93 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.shmget
1.05 ± 9% +0.9 1.93 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmget
1.02 ± 9% +0.9 1.92 ± 7% perf-profile.calltrace.cycles-pp.shmctl
1.00 ± 9% +0.9 1.93 ± 9% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.shmdt
1.00 ± 8% +0.9 1.94 ± 9% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.shmdt
1.13 ± 8% +0.9 2.08 ± 6% perf-profile.calltrace.cycles-pp.shmget
0.00 +1.0 0.97 ± 5% perf-profile.calltrace.cycles-pp.semctl
1.03 ± 9% +1.0 1.99 ± 5% perf-profile.calltrace.cycles-pp.do_smart_update.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
1.04 ± 8% +1.0 2.03 ± 9% perf-profile.calltrace.cycles-pp.shmdt
2.61 ± 9% +1.3 3.89 ± 14% perf-profile.calltrace.cycles-pp.security_ipc_permission.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
1.65 ± 13% +2.0 3.65 ± 7% perf-profile.calltrace.cycles-pp.security_sem_semop.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
1.61 ± 6% +5.3 6.89 ± 2% perf-profile.calltrace.cycles-pp.idr_find.ipc_obtain_object_check.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.45 ± 9% +6.2 12.63 ± 6% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.semop
2.92 ± 5% +8.0 10.88 ± 7% perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
9.07 ± 8% +8.8 17.85 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.semop
15.56 ± 8% +18.8 34.38 ± 6% perf-profile.calltrace.cycles-pp.do_semtimedop.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
17.40 ± 8% +20.4 37.82 ± 6% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.semop
17.99 ± 8% +21.0 39.00 ± 6% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.semop
33.85 ± 8% +36.1 69.98 ± 6% perf-profile.calltrace.cycles-pp.semop
reaim.time.percent_of_cpu_this_job_got
1800 +-+------------------------------------------------------------------+
| O |
1780 +-OO O O O |
1760 O-+ O O OO |
| |
1740 +-+ |
| |
1720 +-+ O .+. |
| O O + + |
1700 +-+ O .+ : |
1680 +-+ .+ .+. .+ .+.+ .+ : +. .+.++.|
|.++.+.++ : .++ ++.+ + +.+.++.++ +.+.++.+.+ ++ |
1660 +-+ : + |
| + |
1640 +-+------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Rong Chen
View attachment "config-5.0.0-rc1-00003-g3047027" of type "text/plain" (169078 bytes)
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