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Date: Fri, 4 Feb 2022 22:19:41 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Vincent Guittot <vincent.guittot@...aro.org>
Cc: Peter Zijlstra <peterz@...radead.org>,
Dietmar Eggemann <dietmar.eggemann@....com>,
Sachin Sant <sachinp@...ux.ibm.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
zhengjun.xing@...ux.intel.com, fengwei.yin@...el.com,
aubrey.li@...ux.intel.com, yu.c.chen@...el.com
Subject: [sched/pelt] 2d02fa8cc2: stress-ng.pipeherd.ops_per_sec -9.7%
regression
Greeting,
FYI, we noticed a -9.7% regression of stress-ng.pipeherd.ops_per_sec due to commit:
commit: 2d02fa8cc21a93da35cfba462bf8ab87bf2db651 ("sched/pelt: Relax the sync of load_sum with load_avg")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: stress-ng
on test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz with 128G memory
with following parameters:
nr_threads: 100%
testtime: 60s
class: memory
test: pipeherd
cpufreq_governor: performance
ucode: 0xd000280
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
=========================================================================================
class/compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
memory/gcc-9/performance/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/lkp-icl-2sp6/pipeherd/stress-ng/60s/0xd000280
commit:
95246d1ec8 ("sched/pelt: Relax the sync of runnable_sum with runnable_avg")
2d02fa8cc2 ("sched/pelt: Relax the sync of load_sum with load_avg")
95246d1ec80b8d19 2d02fa8cc21a93da35cfba462bf
---------------- ---------------------------
%stddev %change %stddev
\ | \
0.21 +11.0% 0.24 ± 2% stress-ng.pipeherd.context_switches_per_bogo_op
3.869e+09 -9.7% 3.494e+09 stress-ng.pipeherd.ops
64412021 -9.7% 58171101 stress-ng.pipeherd.ops_per_sec
442.37 -7.2% 410.54 stress-ng.time.user_time
5.49 ± 2% -0.5 4.94 ± 4% mpstat.cpu.all.usr%
80705 ± 7% +26.7% 102266 ± 17% numa-meminfo.node1.Active
80705 ± 7% +26.7% 102266 ± 17% numa-meminfo.node1.Active(anon)
12324 ± 3% -22.1% 9603 ± 25% softirqs.CPU106.RCU
12703 ± 4% -23.1% 9769 ± 24% softirqs.CPU27.RCU
4.814e+10 -7.8% 4.438e+10 ± 4% perf-stat.i.branch-instructions
1.58 +10.6% 1.75 ± 6% perf-stat.i.cpi
7.485e+10 -8.2% 6.869e+10 ± 4% perf-stat.i.dTLB-loads
4.451e+10 -8.7% 4.062e+10 ± 4% perf-stat.i.dTLB-stores
2.475e+11 -7.9% 2.28e+11 ± 4% perf-stat.i.instructions
0.64 -7.8% 0.59 ± 2% perf-stat.i.ipc
1305 -9.3% 1184 ± 5% perf-stat.i.metric.M/sec
0.57 +0.0 0.61 perf-stat.overall.branch-miss-rate%
1.58 +6.0% 1.67 perf-stat.overall.cpi
0.05 ± 2% +0.0 0.05 ± 8% perf-stat.overall.dTLB-load-miss-rate%
0.00 ± 18% +0.0 0.00 ± 8% perf-stat.overall.dTLB-store-miss-rate%
0.63 -5.7% 0.60 perf-stat.overall.ipc
4.719e+10 -7.3% 4.373e+10 ± 3% perf-stat.ps.branch-instructions
7.341e+10 -7.8% 6.77e+10 ± 3% perf-stat.ps.dTLB-loads
4.366e+10 -8.3% 4.004e+10 ± 3% perf-stat.ps.dTLB-stores
2.426e+11 -7.4% 2.247e+11 ± 3% perf-stat.ps.instructions
1.557e+13 -5.0% 1.479e+13 perf-stat.total.instructions
2.96 ± 2% -0.3 2.68 perf-profile.calltrace.cycles-pp.copy_page_to_iter.pipe_read.new_sync_read.vfs_read.ksys_read
2.80 -0.2 2.56 perf-profile.calltrace.cycles-pp.copy_page_from_iter.pipe_write.new_sync_write.vfs_write.ksys_write
1.81 -0.2 1.63 perf-profile.calltrace.cycles-pp.__entry_text_start.read
1.80 -0.2 1.65 perf-profile.calltrace.cycles-pp.__entry_text_start.write
1.93 -0.1 1.80 ± 2% perf-profile.calltrace.cycles-pp.mutex_lock.pipe_read.new_sync_read.vfs_read.ksys_read
0.94 ± 2% -0.1 0.82 ± 2% perf-profile.calltrace.cycles-pp.security_file_permission.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.37 -0.1 1.25 ± 2% perf-profile.calltrace.cycles-pp.mutex_lock.pipe_write.new_sync_write.vfs_write.ksys_write
1.23 ± 2% -0.1 1.12 ± 2% perf-profile.calltrace.cycles-pp.copyin.copy_page_from_iter.pipe_write.new_sync_write.vfs_write
1.46 ± 3% -0.1 1.36 ± 3% perf-profile.calltrace.cycles-pp.copyout.copy_page_to_iter.pipe_read.new_sync_read.vfs_read
1.40 -0.1 1.30 ± 2% perf-profile.calltrace.cycles-pp.__mutex_unlock_slowpath.pipe_read.new_sync_read.vfs_read.ksys_read
1.04 ± 2% -0.1 0.95 ± 3% perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyin.copy_page_from_iter.pipe_write.new_sync_write
1.03 ± 2% -0.1 0.94 ± 2% perf-profile.calltrace.cycles-pp.__mutex_unlock_slowpath.pipe_write.new_sync_write.vfs_write.ksys_write
1.27 ± 3% -0.1 1.18 ± 3% perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyout.copy_page_to_iter.pipe_read.new_sync_read
0.92 -0.1 0.83 perf-profile.calltrace.cycles-pp.touch_atime.pipe_read.new_sync_read.vfs_read.ksys_read
1.07 ± 2% -0.1 0.98 perf-profile.calltrace.cycles-pp.security_file_permission.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.78 -0.1 0.70 perf-profile.calltrace.cycles-pp.atime_needs_update.touch_atime.pipe_read.new_sync_read.vfs_read
0.72 ± 2% -0.1 0.64 perf-profile.calltrace.cycles-pp.file_update_time.pipe_write.new_sync_write.vfs_write.ksys_write
0.60 ± 3% -0.1 0.52 ± 2% perf-profile.calltrace.cycles-pp.common_file_perm.security_file_permission.vfs_read.ksys_read.do_syscall_64
2.60 -0.1 2.54 perf-profile.calltrace.cycles-pp.select_idle_sibling.select_task_rq_fair.try_to_wake_up.autoremove_wake_function.__wake_up_common
0.68 -0.1 0.62 perf-profile.calltrace.cycles-pp.ttwu_do_wakeup.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
0.64 -0.1 0.58 ± 2% perf-profile.calltrace.cycles-pp.check_preempt_curr.ttwu_do_wakeup.try_to_wake_up.autoremove_wake_function.__wake_up_common
0.73 ± 2% -0.1 0.68 perf-profile.calltrace.cycles-pp.common_file_perm.security_file_permission.vfs_write.ksys_write.do_syscall_64
0.64 ± 3% -0.0 0.59 perf-profile.calltrace.cycles-pp.__fdget_pos.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
0.59 ± 2% -0.0 0.54 ± 2% perf-profile.calltrace.cycles-pp.wake_up_q.__mutex_unlock_slowpath.pipe_read.new_sync_read.vfs_read
0.60 -0.0 0.56 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.new_sync_write.vfs_write
0.73 ± 3% -0.0 0.69 ± 3% perf-profile.calltrace.cycles-pp.update_rq_clock.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
0.57 ± 3% -0.0 0.53 perf-profile.calltrace.cycles-pp.__fget_light.__fdget_pos.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.82 ± 3% +0.1 0.89 perf-profile.calltrace.cycles-pp.update_load_avg.dequeue_entity.dequeue_task_fair.__schedule.schedule
0.58 ± 2% +0.1 0.64 perf-profile.calltrace.cycles-pp.update_load_avg.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function
0.67 ± 2% +0.1 0.78 ± 3% perf-profile.calltrace.cycles-pp.update_load_avg.enqueue_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up
40.69 +0.2 40.87 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
40.28 +0.2 40.52 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
50.44 +0.3 50.71 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
49.94 +0.3 50.23 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
39.38 +0.3 39.69 perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
1.02 ± 15% +0.3 1.33 ± 14% perf-profile.calltrace.cycles-pp.set_task_cpu.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
48.24 +0.4 48.60 perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
38.39 +0.4 38.78 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
47.40 +0.4 47.83 perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
13.88 +0.5 14.42 perf-profile.calltrace.cycles-pp.schedule.pipe_read.new_sync_read.vfs_read.ksys_read
36.68 +0.5 37.22 perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
13.70 +0.5 14.25 perf-profile.calltrace.cycles-pp.__schedule.schedule.pipe_read.new_sync_read.vfs_read
45.72 +0.6 46.31 perf-profile.calltrace.cycles-pp.new_sync_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
35.80 +0.6 36.42 perf-profile.calltrace.cycles-pp.pipe_write.new_sync_write.vfs_write.ksys_write.do_syscall_64
44.85 +0.7 45.51 perf-profile.calltrace.cycles-pp.pipe_read.new_sync_read.vfs_read.ksys_read.do_syscall_64
6.15 +0.7 6.84 ± 2% perf-profile.calltrace.cycles-pp.dequeue_task_fair.__schedule.schedule.pipe_read.new_sync_read
1.98 ± 9% +0.7 2.70 ± 9% perf-profile.calltrace.cycles-pp.update_cfs_group.dequeue_task_fair.__schedule.schedule.pipe_read
2.03 ± 8% +0.7 2.78 ± 9% perf-profile.calltrace.cycles-pp.update_cfs_group.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function
15.96 +1.0 16.95 perf-profile.calltrace.cycles-pp.prepare_to_wait_event.pipe_read.new_sync_read.vfs_read.ksys_read
6.67 +1.0 7.68 ± 2% perf-profile.calltrace.cycles-pp.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common
6.77 +1.0 7.79 ± 2% perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
14.46 +1.0 15.48 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.new_sync_read.vfs_read
13.73 +1.1 14.79 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.prepare_to_wait_event.pipe_read.new_sync_read
26.95 +1.4 28.34 perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_write.new_sync_write.vfs_write.ksys_write
25.85 +1.5 27.32 perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.pipe_write.new_sync_write.vfs_write
25.18 +1.5 26.69 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write.new_sync_write
24.61 +1.5 26.14 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write
3.12 ± 2% -0.3 2.82 perf-profile.children.cycles-pp.copy_page_to_iter
2.98 -0.3 2.71 perf-profile.children.cycles-pp.copy_page_from_iter
3.47 -0.3 3.21 ± 2% perf-profile.children.cycles-pp.mutex_lock
2.25 -0.2 2.04 perf-profile.children.cycles-pp.syscall_return_via_sysret
2.10 ± 2% -0.2 1.89 perf-profile.children.cycles-pp.security_file_permission
2.60 ± 2% -0.2 2.40 ± 2% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
2.48 -0.2 2.29 ± 2% perf-profile.children.cycles-pp.__mutex_unlock_slowpath
2.08 -0.2 1.90 perf-profile.children.cycles-pp.__entry_text_start
1.86 -0.2 1.71 perf-profile.children.cycles-pp.__might_resched
1.45 ± 2% -0.1 1.31 ± 2% perf-profile.children.cycles-pp.common_file_perm
1.28 ± 2% -0.1 1.17 ± 2% perf-profile.children.cycles-pp.copyin
1.51 ± 3% -0.1 1.40 ± 3% perf-profile.children.cycles-pp.copyout
1.21 ± 2% -0.1 1.11 perf-profile.children.cycles-pp.__fdget_pos
1.07 ± 2% -0.1 0.96 ± 2% perf-profile.children.cycles-pp.__might_sleep
0.99 -0.1 0.89 perf-profile.children.cycles-pp.touch_atime
0.95 ± 2% -0.1 0.86 ± 2% perf-profile.children.cycles-pp.current_time
1.04 ± 2% -0.1 0.96 perf-profile.children.cycles-pp.__fget_light
0.83 -0.1 0.74 perf-profile.children.cycles-pp.atime_needs_update
0.90 -0.1 0.81 ± 2% perf-profile.children.cycles-pp.__cond_resched
1.00 ± 2% -0.1 0.91 ± 2% perf-profile.children.cycles-pp.wake_up_q
0.81 -0.1 0.73 ± 2% perf-profile.children.cycles-pp.__might_fault
0.78 ± 2% -0.1 0.71 ± 2% perf-profile.children.cycles-pp.file_update_time
1.24 -0.1 1.17 ± 2% perf-profile.children.cycles-pp.mutex_unlock
2.68 -0.1 2.61 perf-profile.children.cycles-pp.select_idle_sibling
1.81 ± 2% -0.1 1.74 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.66 -0.1 0.60 perf-profile.children.cycles-pp.check_preempt_curr
1.15 -0.1 1.09 perf-profile.children.cycles-pp.available_idle_cpu
0.69 -0.1 0.63 perf-profile.children.cycles-pp.ttwu_do_wakeup
0.50 -0.1 0.44 ± 2% perf-profile.children.cycles-pp.check_preempt_wakeup
0.50 ± 3% -0.0 0.45 ± 11% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.58 ± 2% -0.0 0.53 ± 2% perf-profile.children.cycles-pp.wake_q_add
0.45 ± 2% -0.0 0.40 ± 2% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.47 ± 3% -0.0 0.42 ± 2% perf-profile.children.cycles-pp.aa_file_perm
0.46 ± 3% -0.0 0.42 ± 3% perf-profile.children.cycles-pp.kill_fasync
1.82 -0.0 1.78 perf-profile.children.cycles-pp.select_idle_cpu
0.38 ± 2% -0.0 0.34 ± 2% perf-profile.children.cycles-pp.rcu_all_qs
0.35 ± 2% -0.0 0.32 ± 2% perf-profile.children.cycles-pp.timestamp_truncate
0.24 ± 2% -0.0 0.22 ± 2% perf-profile.children.cycles-pp.rw_verify_area
0.21 -0.0 0.19 perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.19 ± 3% -0.0 0.16 ± 3% perf-profile.children.cycles-pp.iov_iter_init
0.23 -0.0 0.21 ± 3% perf-profile.children.cycles-pp.anon_pipe_buf_release
0.13 -0.0 0.12 ± 4% perf-profile.children.cycles-pp.apparmor_file_permission
0.15 -0.0 0.14 ± 2% perf-profile.children.cycles-pp.pick_next_entity
3.25 +0.2 3.49 perf-profile.children.cycles-pp.update_load_avg
39.46 +0.3 39.77 perf-profile.children.cycles-pp.ksys_write
1.03 ± 15% +0.3 1.35 ± 14% perf-profile.children.cycles-pp.set_task_cpu
48.31 +0.4 48.66 perf-profile.children.cycles-pp.ksys_read
38.52 +0.4 38.90 perf-profile.children.cycles-pp.vfs_write
47.48 +0.4 47.90 perf-profile.children.cycles-pp.vfs_read
91.24 +0.5 91.69 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
90.53 +0.5 91.04 perf-profile.children.cycles-pp.do_syscall_64
13.98 +0.5 14.51 perf-profile.children.cycles-pp.schedule
36.77 +0.5 37.30 perf-profile.children.cycles-pp.new_sync_write
13.88 +0.5 14.42 perf-profile.children.cycles-pp.__schedule
45.80 +0.6 46.39 perf-profile.children.cycles-pp.new_sync_read
36.10 +0.6 36.70 perf-profile.children.cycles-pp.pipe_write
45.16 +0.6 45.81 perf-profile.children.cycles-pp.pipe_read
6.21 +0.7 6.90 ± 2% perf-profile.children.cycles-pp.dequeue_task_fair
16.24 +1.0 17.22 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
16.02 +1.0 17.01 perf-profile.children.cycles-pp.prepare_to_wait_event
6.74 +1.0 7.76 ± 2% perf-profile.children.cycles-pp.enqueue_task_fair
6.83 +1.0 7.86 ± 2% perf-profile.children.cycles-pp.ttwu_do_activate
15.12 +1.1 16.22 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
27.07 +1.4 28.44 perf-profile.children.cycles-pp.__wake_up_common_lock
25.88 +1.5 27.35 perf-profile.children.cycles-pp.__wake_up_common
25.48 +1.5 26.96 perf-profile.children.cycles-pp.try_to_wake_up
4.24 ± 8% +1.5 5.73 ± 9% perf-profile.children.cycles-pp.update_cfs_group
25.19 +1.5 26.71 perf-profile.children.cycles-pp.autoremove_wake_function
2.24 -0.2 2.04 perf-profile.self.cycles-pp.syscall_return_via_sysret
2.54 ± 2% -0.2 2.34 ± 3% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
2.15 ± 2% -0.1 2.01 ± 3% perf-profile.self.cycles-pp.mutex_lock
1.70 -0.1 1.57 perf-profile.self.cycles-pp.__might_resched
1.44 -0.1 1.30 perf-profile.self.cycles-pp.pipe_write
2.08 -0.1 1.95 ± 2% perf-profile.self.cycles-pp.pipe_read
1.54 -0.1 1.44 ± 3% perf-profile.self.cycles-pp._raw_spin_lock_irq
1.02 ± 2% -0.1 0.91 ± 2% perf-profile.self.cycles-pp.common_file_perm
0.79 ± 2% -0.1 0.69 perf-profile.self.cycles-pp.copy_page_to_iter
2.24 -0.1 2.15 ± 3% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.99 ± 2% -0.1 0.91 perf-profile.self.cycles-pp.__fget_light
0.87 ± 2% -0.1 0.79 ± 2% perf-profile.self.cycles-pp.__might_sleep
0.78 -0.1 0.70 ± 3% perf-profile.self.cycles-pp.copy_page_from_iter
0.92 ± 2% -0.1 0.84 ± 3% perf-profile.self.cycles-pp.write
0.76 ± 2% -0.1 0.70 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
1.17 -0.1 1.10 ± 2% perf-profile.self.cycles-pp.mutex_unlock
0.59 ± 2% -0.1 0.53 perf-profile.self.cycles-pp.vfs_write
1.02 -0.1 0.96 ± 2% perf-profile.self.cycles-pp._raw_spin_lock
1.10 -0.1 1.05 perf-profile.self.cycles-pp.available_idle_cpu
0.57 -0.1 0.52 perf-profile.self.cycles-pp.new_sync_write
0.89 ± 2% -0.1 0.83 ± 3% perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
0.38 ± 2% -0.1 0.33 ± 2% perf-profile.self.cycles-pp.check_preempt_wakeup
0.59 ± 3% -0.1 0.53 perf-profile.self.cycles-pp.new_sync_read
0.57 ± 2% -0.1 0.51 perf-profile.self.cycles-pp.security_file_permission
0.66 -0.1 0.61 ± 2% perf-profile.self.cycles-pp.__mutex_unlock_slowpath
0.55 ± 2% -0.0 0.50 perf-profile.self.cycles-pp.__entry_text_start
0.53 ± 2% -0.0 0.49 ± 2% perf-profile.self.cycles-pp.do_syscall_64
0.47 -0.0 0.43 perf-profile.self.cycles-pp.__cond_resched
0.63 ± 2% -0.0 0.60 perf-profile.self.cycles-pp.vfs_read
0.55 ± 2% -0.0 0.51 ± 3% perf-profile.self.cycles-pp.wake_q_add
0.37 ± 4% -0.0 0.33 ± 5% perf-profile.self.cycles-pp.kill_fasync
0.39 ± 2% -0.0 0.36 ± 2% perf-profile.self.cycles-pp.aa_file_perm
0.38 ± 2% -0.0 0.35 ± 2% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.34 ± 2% -0.0 0.30 ± 2% perf-profile.self.cycles-pp.atime_needs_update
0.36 ± 3% -0.0 0.32 ± 2% perf-profile.self.cycles-pp.current_time
0.31 ± 2% -0.0 0.28 ± 2% perf-profile.self.cycles-pp.timestamp_truncate
0.36 ± 3% -0.0 0.33 ± 2% perf-profile.self.cycles-pp.exit_to_user_mode_prepare
0.34 ± 2% -0.0 0.32 ± 2% perf-profile.self.cycles-pp.__wake_up_common_lock
0.30 -0.0 0.28 perf-profile.self.cycles-pp.file_update_time
0.37 ± 3% -0.0 0.34 ± 3% perf-profile.self.cycles-pp.enqueue_entity
0.33 ± 2% -0.0 0.31 ± 2% perf-profile.self.cycles-pp.wake_up_q
0.26 ± 2% -0.0 0.24 perf-profile.self.cycles-pp.rcu_all_qs
0.28 -0.0 0.26 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.30 ± 2% -0.0 0.27 ± 2% perf-profile.self.cycles-pp.ksys_write
0.18 ± 2% -0.0 0.16 ± 2% perf-profile.self.cycles-pp.__fdget_pos
0.53 -0.0 0.51 perf-profile.self.cycles-pp.select_idle_sibling
0.18 ± 2% -0.0 0.16 ± 3% perf-profile.self.cycles-pp.rw_verify_area
0.18 ± 2% -0.0 0.16 ± 2% perf-profile.self.cycles-pp.touch_atime
0.20 ± 2% -0.0 0.18 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.14 ± 4% -0.0 0.12 ± 3% perf-profile.self.cycles-pp.iov_iter_init
0.15 ± 4% -0.0 0.13 ± 4% perf-profile.self.cycles-pp.__might_fault
0.10 ± 5% -0.0 0.08 ± 4% perf-profile.self.cycles-pp.copyout
0.10 ± 5% -0.0 0.08 ± 4% perf-profile.self.cycles-pp.copyin
0.36 ± 2% +0.2 0.53 ± 2% perf-profile.self.cycles-pp.enqueue_task_fair
1.43 ± 2% +0.3 1.69 ± 2% perf-profile.self.cycles-pp.update_load_avg
0.85 ± 18% +0.3 1.17 ± 16% perf-profile.self.cycles-pp.set_task_cpu
9.31 ± 2% +0.5 9.81 perf-profile.self.cycles-pp.try_to_wake_up
15.10 +1.1 16.21 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
4.21 ± 8% +1.5 5.71 ± 9% perf-profile.self.cycles-pp.update_cfs_group
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.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
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