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46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 1eGYPcgsHkJUyOzagCpEDWJWbCRfEx8Biw8/aoWFvBnfvz7qftNyzaHNL8GO6RlTAS9ntqhX4A0bEiWqTKOwYw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR11MB6256 X-OriginatorOrg: intel.com Hello, kernel test robot noticed a 2.3% regression of will-it-scale.per_process_ops on: commit: efcf26d77a358557d9d847fdca09ccd0690e6831 ("[PATCH v8 4/4] sched: Fix cgroup irq time for CONFIG_IRQ_TIME_ACCOUNTING") url: https://github.com/intel-lab-lkp/linux/commits/Yafang-Shao/sched-Define-sched_clock_irqtime-as-static-key/20250103-102726 base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git 7c8cd569ff66755f17b0c0c03a9d8df1b6f3e9ed patch link: https://lore.kernel.org/all/20250103022409.2544-5-laoar.shao@gmail.com/ patch subject: [PATCH v8 4/4] sched: Fix cgroup irq time for CONFIG_IRQ_TIME_ACCOUNTING testcase: will-it-scale config: x86_64-rhel-9.4 compiler: gcc-12 test machine: 104 threads 2 sockets (Skylake) with 192G memory parameters: nr_task: 100% mode: process test: context_switch1 cpufreq_governor: performance If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202501101033.b66070d2-lkp@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250110/202501101033.b66070d2-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase: gcc-12/performance/x86_64-rhel-9.4/process/100%/debian-12-x86_64-20240206.cgz/lkp-skl-fpga01/context_switch1/will-it-scale commit: 278e29c10e ("sched, psi: Don't account irq time if sched_clock_irqtime is disabled") efcf26d77a ("sched: Fix cgroup irq time for CONFIG_IRQ_TIME_ACCOUNTING") 278e29c10e4553fa efcf26d77a358557d9d847fdca0 ---------------- --------------------------- %stddev %change %stddev \ | \ 0.01 ± 5% +20.0% 0.01 ± 8% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.pipe_read.vfs_read.ksys_read 20608395 -2.4% 20105294 vmstat.system.cs 20905845 -2.3% 20428184 will-it-scale.104.processes 201017 -2.3% 196424 will-it-scale.per_process_ops 20905845 -2.3% 20428184 will-it-scale.workload 1.42 -0.0 1.39 perf-stat.i.branch-miss-rate% 3.348e+08 -3.3% 3.237e+08 perf-stat.i.branch-misses 20793493 -2.5% 20282595 perf-stat.i.context-switches 199.94 -2.5% 195.03 perf-stat.i.metric.K/sec 1.40 -0.0 1.37 perf-stat.overall.branch-miss-rate% 1728376 +1.9% 1761726 perf-stat.overall.path-length 3.336e+08 -3.3% 3.226e+08 perf-stat.ps.branch-misses 20722198 -2.5% 20214311 perf-stat.ps.context-switches 2.55 -0.4 2.12 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_safe_stack.read 8.10 -0.4 7.70 perf-profile.calltrace.cycles-pp.__wake_up_sync_key.pipe_write.vfs_write.ksys_write.do_syscall_64 7.35 -0.3 7.00 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.pipe_write.vfs_write 7.60 -0.3 7.25 perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_sync_key.pipe_write.vfs_write.ksys_write 6.96 -0.3 6.63 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_sync_key.pipe_write 2.68 -0.3 2.35 perf-profile.calltrace.cycles-pp.wakeup_preempt.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_sync_key 2.29 -0.3 2.00 perf-profile.calltrace.cycles-pp.check_preempt_wakeup_fair.wakeup_preempt.try_to_wake_up.autoremove_wake_function.__wake_up_common 7.85 -0.3 7.56 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.read 14.42 -0.2 14.19 perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 1.99 -0.2 1.78 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_safe_stack.write 13.40 -0.2 13.20 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 1.34 -0.2 1.17 perf-profile.calltrace.cycles-pp.update_curr.check_preempt_wakeup_fair.wakeup_preempt.try_to_wake_up.autoremove_wake_function 1.42 -0.2 1.27 perf-profile.calltrace.cycles-pp.update_curr.dequeue_entity.dequeue_entities.dequeue_task_fair.try_to_block_task 2.49 -0.1 2.37 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.read 2.30 -0.1 2.20 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.write 0.80 -0.1 0.72 perf-profile.calltrace.cycles-pp.mutex_lock.pipe_read.vfs_read.ksys_read.do_syscall_64 1.94 -0.0 1.90 perf-profile.calltrace.cycles-pp.switch_mm_irqs_off.__schedule.schedule.pipe_read.vfs_read 0.89 -0.0 0.85 perf-profile.calltrace.cycles-pp.prepare_to_wait_event.pipe_read.vfs_read.ksys_read.do_syscall_64 0.99 -0.0 0.96 perf-profile.calltrace.cycles-pp.copy_page_to_iter.pipe_read.vfs_read.ksys_read.do_syscall_64 0.79 -0.0 0.76 perf-profile.calltrace.cycles-pp._copy_to_iter.copy_page_to_iter.pipe_read.vfs_read.ksys_read 0.71 -0.0 0.69 perf-profile.calltrace.cycles-pp.fdget_pos.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 0.72 -0.0 0.70 perf-profile.calltrace.cycles-pp.__switch_to_asm.read 0.70 ± 2% +0.0 0.73 ± 2% perf-profile.calltrace.cycles-pp.inode_needs_update_time.file_update_time.pipe_write.vfs_write.ksys_write 0.80 +0.0 0.84 perf-profile.calltrace.cycles-pp.file_update_time.pipe_write.vfs_write.ksys_write.do_syscall_64 0.62 +0.1 0.69 perf-profile.calltrace.cycles-pp.update_load_avg.dequeue_entity.dequeue_entities.dequeue_task_fair.try_to_block_task 1.48 +0.1 1.57 perf-profile.calltrace.cycles-pp.set_next_entity.pick_next_task_fair.__pick_next_task.__schedule.schedule 1.29 +0.1 1.40 perf-profile.calltrace.cycles-pp.touch_atime.pipe_read.vfs_read.ksys_read.do_syscall_64 1.05 +0.1 1.17 perf-profile.calltrace.cycles-pp.atime_needs_update.touch_atime.pipe_read.vfs_read.ksys_read 2.19 +0.1 2.32 perf-profile.calltrace.cycles-pp.put_prev_entity.pick_next_task_fair.__pick_next_task.__schedule.schedule 3.22 +0.1 3.34 perf-profile.calltrace.cycles-pp.pick_next_task_fair.__pick_next_task.__schedule.schedule.syscall_exit_to_user_mode 3.37 +0.1 3.51 perf-profile.calltrace.cycles-pp.__pick_next_task.__schedule.schedule.syscall_exit_to_user_mode.do_syscall_64 0.34 ± 70% +0.2 0.55 ± 3% perf-profile.calltrace.cycles-pp.update_load_avg.requeue_delayed_entity.enqueue_task.try_to_wake_up.autoremove_wake_function 3.82 +0.2 4.03 perf-profile.calltrace.cycles-pp.pick_next_task_fair.__pick_next_task.__schedule.schedule.pipe_read 4.01 +0.2 4.23 perf-profile.calltrace.cycles-pp.__pick_next_task.__schedule.schedule.pipe_read.vfs_read 48.03 +0.2 48.27 perf-profile.calltrace.cycles-pp.write 25.66 +0.4 26.03 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 30.22 +0.4 30.60 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read 29.31 +0.4 29.69 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write 26.54 +0.4 26.92 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 0.17 ±141% +0.4 0.61 perf-profile.calltrace.cycles-pp.current_time.atime_needs_update.touch_atime.pipe_read.vfs_read 19.76 +0.5 20.22 perf-profile.calltrace.cycles-pp.pipe_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe 22.07 +0.5 22.57 perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 20.96 +0.5 21.46 perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 0.00 +0.5 0.52 ± 2% perf-profile.calltrace.cycles-pp.current_time.inode_needs_update_time.file_update_time.pipe_write.vfs_write 7.25 +0.5 7.77 perf-profile.calltrace.cycles-pp.schedule.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 7.04 +0.5 7.58 perf-profile.calltrace.cycles-pp.__schedule.schedule.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe 12.97 +0.6 13.56 perf-profile.calltrace.cycles-pp.schedule.pipe_read.vfs_read.ksys_read.do_syscall_64 10.18 +0.6 10.78 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 12.68 +0.6 13.29 perf-profile.calltrace.cycles-pp.__schedule.schedule.pipe_read.vfs_read.ksys_read 6.83 -0.5 6.29 perf-profile.children.cycles-pp.entry_SYSCALL_64 8.12 -0.4 7.71 perf-profile.children.cycles-pp.__wake_up_sync_key 7.36 -0.4 7.00 perf-profile.children.cycles-pp.autoremove_wake_function 7.08 -0.4 6.73 perf-profile.children.cycles-pp.try_to_wake_up 7.62 -0.4 7.27 perf-profile.children.cycles-pp.__wake_up_common 15.19 -0.3 14.86 perf-profile.children.cycles-pp.syscall_return_via_sysret 2.72 -0.3 2.39 perf-profile.children.cycles-pp.wakeup_preempt 4.36 -0.3 4.04 perf-profile.children.cycles-pp.update_curr 2.51 -0.3 2.19 perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack 2.33 -0.3 2.04 perf-profile.children.cycles-pp.check_preempt_wakeup_fair 14.46 -0.2 14.22 perf-profile.children.cycles-pp.ksys_write 13.44 -0.2 13.24 perf-profile.children.cycles-pp.vfs_write 51.15 -0.2 50.96 perf-profile.children.cycles-pp.read 0.44 -0.1 0.35 ± 24% perf-profile.children.cycles-pp.reader__read_event 1.22 -0.1 1.14 perf-profile.children.cycles-pp.mutex_lock 1.09 -0.1 1.02 perf-profile.children.cycles-pp._raw_spin_lock_irqsave 1.16 -0.1 1.09 perf-profile.children.cycles-pp.pick_eevdf 0.49 ± 3% -0.1 0.42 ± 2% perf-profile.children.cycles-pp.update_curr_dl_se 3.47 -0.1 3.41 perf-profile.children.cycles-pp.switch_mm_irqs_off 1.00 -0.1 0.94 perf-profile.children.cycles-pp.__switch_to 0.74 -0.1 0.68 perf-profile.children.cycles-pp.__enqueue_entity 0.50 -0.0 0.46 perf-profile.children.cycles-pp.anon_pipe_buf_release 0.90 -0.0 0.86 perf-profile.children.cycles-pp.prepare_to_wait_event 0.13 ± 2% -0.0 0.09 ± 5% perf-profile.children.cycles-pp.__x64_sys_read 1.00 -0.0 0.97 perf-profile.children.cycles-pp.copy_page_to_iter 0.38 -0.0 0.34 perf-profile.children.cycles-pp.testcase 0.65 -0.0 0.61 perf-profile.children.cycles-pp.mutex_unlock 0.49 -0.0 0.46 ± 3% perf-profile.children.cycles-pp.rep_movs_alternative 0.85 -0.0 0.82 perf-profile.children.cycles-pp._copy_to_iter 1.38 -0.0 1.35 perf-profile.children.cycles-pp.__switch_to_asm 0.06 -0.0 0.03 ± 70% perf-profile.children.cycles-pp.psi_account_irqtime 0.63 -0.0 0.60 perf-profile.children.cycles-pp.___perf_sw_event 0.15 ± 2% -0.0 0.12 ± 3% perf-profile.children.cycles-pp.__resched_curr 0.56 -0.0 0.54 perf-profile.children.cycles-pp.__cond_resched 0.44 -0.0 0.42 perf-profile.children.cycles-pp.finish_task_switch 0.37 -0.0 0.35 perf-profile.children.cycles-pp.__wrgsbase_inactive 0.36 -0.0 0.34 ± 2% perf-profile.children.cycles-pp.child 0.09 ± 4% -0.0 0.07 ± 6% perf-profile.children.cycles-pp.mm_cid_get 0.22 ± 2% -0.0 0.20 ± 3% perf-profile.children.cycles-pp.dl_scaled_delta_exec 0.08 ± 6% +0.0 0.09 perf-profile.children.cycles-pp.__x64_sys_write 0.09 ± 4% +0.0 0.11 ± 4% perf-profile.children.cycles-pp.read@plt 0.66 +0.0 0.68 perf-profile.children.cycles-pp.update_rq_clock 0.22 ± 2% +0.0 0.25 perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore 0.16 ± 3% +0.0 0.18 ± 3% perf-profile.children.cycles-pp.dequeue_task 0.21 +0.0 0.24 ± 2% perf-profile.children.cycles-pp.__calc_delta 0.11 ± 6% +0.0 0.13 ± 3% perf-profile.children.cycles-pp.blkcg_maybe_throttle_current 0.32 +0.0 0.34 ± 2% perf-profile.children.cycles-pp.x64_sys_call 0.71 ± 2% +0.0 0.74 perf-profile.children.cycles-pp.vruntime_eligible 0.70 ± 2% +0.0 0.74 ± 2% perf-profile.children.cycles-pp.inode_needs_update_time 0.82 +0.0 0.86 perf-profile.children.cycles-pp.file_update_time 0.08 ± 4% +0.1 0.14 ± 3% perf-profile.children.cycles-pp.sched_update_worker 0.00 +0.1 0.07 ± 7% perf-profile.children.cycles-pp.arch_scale_cpu_capacity 0.07 +0.1 0.14 ± 2% perf-profile.children.cycles-pp.__set_next_task_fair 0.82 +0.1 0.89 perf-profile.children.cycles-pp.__update_load_avg_cfs_rq 0.00 +0.1 0.08 ± 13% perf-profile.children.cycles-pp.cpuacct_account_field 1.54 +0.1 1.64 perf-profile.children.cycles-pp.set_next_entity 2.35 +0.1 2.46 perf-profile.children.cycles-pp.put_prev_entity 1.30 +0.1 1.41 perf-profile.children.cycles-pp.touch_atime 1.08 +0.1 1.19 perf-profile.children.cycles-pp.atime_needs_update 0.58 +0.1 0.70 ± 2% perf-profile.children.cycles-pp.ktime_get_coarse_real_ts64_mg 0.27 ± 8% +0.1 0.40 ± 5% perf-profile.children.cycles-pp.__cgroup_account_cputime 0.07 ± 11% +0.1 0.21 ± 5% perf-profile.children.cycles-pp.cgroup_rstat_updated 0.26 ± 6% +0.2 0.41 ± 8% perf-profile.children.cycles-pp.cpuacct_charge 1.01 +0.2 1.16 perf-profile.children.cycles-pp.current_time 3.00 +0.2 3.17 perf-profile.children.cycles-pp.update_load_avg 0.00 +0.2 0.19 ± 4% perf-profile.children.cycles-pp.__cgroup_account_cputime_field 48.50 +0.2 48.74 perf-profile.children.cycles-pp.write 7.40 +0.3 7.75 perf-profile.children.cycles-pp.__pick_next_task 7.20 +0.4 7.55 perf-profile.children.cycles-pp.pick_next_task_fair 19.93 +0.5 20.39 perf-profile.children.cycles-pp.pipe_read 22.09 +0.5 22.59 perf-profile.children.cycles-pp.ksys_read 20.98 +0.5 21.49 perf-profile.children.cycles-pp.vfs_read 13.69 +0.6 14.25 perf-profile.children.cycles-pp.syscall_exit_to_user_mode 52.30 +0.8 53.06 perf-profile.children.cycles-pp.do_syscall_64 60.19 +0.8 60.96 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 0.00 +0.8 0.78 perf-profile.children.cycles-pp.account_irqtime 20.22 +1.1 21.35 perf-profile.children.cycles-pp.schedule 19.84 +1.1 20.98 perf-profile.children.cycles-pp.__schedule 6.15 -0.5 5.64 perf-profile.self.cycles-pp.entry_SYSCALL_64 14.70 -0.3 14.36 perf-profile.self.cycles-pp.syscall_return_via_sysret 1.98 -0.2 1.78 perf-profile.self.cycles-pp.update_curr 0.54 -0.1 0.43 perf-profile.self.cycles-pp.check_preempt_wakeup_fair 1.68 -0.1 1.59 perf-profile.self.cycles-pp.pipe_read 1.45 -0.1 1.37 perf-profile.self.cycles-pp.do_syscall_64 1.06 -0.1 0.99 perf-profile.self.cycles-pp._raw_spin_lock_irqsave 0.72 -0.1 0.64 perf-profile.self.cycles-pp.pick_eevdf 0.61 ± 2% -0.1 0.55 perf-profile.self.cycles-pp.try_to_wake_up 3.45 -0.1 3.38 perf-profile.self.cycles-pp.switch_mm_irqs_off 0.28 ± 3% -0.0 0.23 ± 2% perf-profile.self.cycles-pp.update_curr_dl_se 0.09 -0.0 0.04 ± 44% perf-profile.self.cycles-pp.__x64_sys_read 0.92 -0.0 0.87 perf-profile.self.cycles-pp.__switch_to 0.49 -0.0 0.44 perf-profile.self.cycles-pp.anon_pipe_buf_release 0.50 -0.0 0.46 perf-profile.self.cycles-pp.prepare_to_wait_event 0.53 -0.0 0.50 perf-profile.self.cycles-pp.update_rq_clock_task 0.69 -0.0 0.66 perf-profile.self.cycles-pp.__enqueue_entity 0.62 -0.0 0.58 perf-profile.self.cycles-pp.mutex_unlock 0.28 -0.0 0.25 ± 2% perf-profile.self.cycles-pp.testcase 1.37 -0.0 1.34 perf-profile.self.cycles-pp.__switch_to_asm 0.76 -0.0 0.73 perf-profile.self.cycles-pp.mutex_lock 0.39 -0.0 0.37 ± 3% perf-profile.self.cycles-pp.rep_movs_alternative 0.37 -0.0 0.35 perf-profile.self.cycles-pp.__cond_resched 0.14 ± 3% -0.0 0.12 ± 5% perf-profile.self.cycles-pp.__resched_curr 0.32 ± 2% -0.0 0.29 perf-profile.self.cycles-pp.finish_task_switch 0.50 -0.0 0.48 perf-profile.self.cycles-pp.__get_user_8 0.09 ± 4% -0.0 0.07 ± 5% perf-profile.self.cycles-pp.mm_cid_get 0.37 -0.0 0.35 perf-profile.self.cycles-pp.__wrgsbase_inactive 0.21 -0.0 0.20 perf-profile.self.cycles-pp.wakeup_preempt 0.30 -0.0 0.28 perf-profile.self.cycles-pp.dequeue_task_fair 0.08 +0.0 0.09 perf-profile.self.cycles-pp.kill_fasync 0.14 ± 3% +0.0 0.16 ± 3% perf-profile.self.cycles-pp.update_rq_clock 0.08 ± 4% +0.0 0.10 ± 5% perf-profile.self.cycles-pp.read@plt 0.09 +0.0 0.10 ± 4% perf-profile.self.cycles-pp.raw_spin_rq_unlock 0.19 +0.0 0.22 ± 2% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore 0.09 ± 7% +0.0 0.12 ± 4% perf-profile.self.cycles-pp.blkcg_maybe_throttle_current 0.14 ± 3% +0.0 0.17 ± 2% perf-profile.self.cycles-pp.dequeue_task 0.30 +0.0 0.32 ± 2% perf-profile.self.cycles-pp.x64_sys_call 0.32 +0.0 0.34 perf-profile.self.cycles-pp.copy_page_from_iter 0.12 ± 7% +0.0 0.15 ± 3% perf-profile.self.cycles-pp.enqueue_task 0.22 +0.0 0.25 perf-profile.self.cycles-pp.rseq_ip_fixup 0.20 +0.0 0.23 ± 2% perf-profile.self.cycles-pp.__calc_delta 0.24 ± 2% +0.0 0.27 ± 7% perf-profile.self.cycles-pp.perf_tp_event 0.66 +0.0 0.69 perf-profile.self.cycles-pp.vruntime_eligible 0.42 ± 2% +0.0 0.46 perf-profile.self.cycles-pp.current_time 0.42 ± 3% +0.0 0.46 ± 2% perf-profile.self.cycles-pp.dequeue_entity 0.00 +0.1 0.05 ± 8% perf-profile.self.cycles-pp.cpuacct_account_field 0.63 ± 3% +0.1 0.69 ± 2% perf-profile.self.cycles-pp.pick_task_fair 0.05 ± 7% +0.1 0.12 ± 4% perf-profile.self.cycles-pp.__set_next_task_fair 0.00 +0.1 0.06 ± 7% perf-profile.self.cycles-pp.__x64_sys_write 0.00 +0.1 0.06 ± 7% perf-profile.self.cycles-pp.arch_scale_cpu_capacity 0.08 ± 6% +0.1 0.14 ± 2% perf-profile.self.cycles-pp.sched_update_worker 0.65 +0.1 0.71 perf-profile.self.cycles-pp.vfs_read 0.76 +0.1 0.83 perf-profile.self.cycles-pp.__update_load_avg_cfs_rq 0.29 +0.1 0.36 perf-profile.self.cycles-pp.set_next_entity 1.25 ± 2% +0.1 1.33 ± 2% perf-profile.self.cycles-pp.update_load_avg 0.20 ± 8% +0.1 0.28 ± 6% perf-profile.self.cycles-pp.__cgroup_account_cputime 0.36 ± 2% +0.1 0.44 perf-profile.self.cycles-pp.put_prev_entity 0.77 +0.1 0.87 perf-profile.self.cycles-pp.pick_next_task_fair 0.00 +0.1 0.11 ± 18% perf-profile.self.cycles-pp.__cgroup_account_cputime_field 0.56 ± 2% +0.1 0.68 ± 2% perf-profile.self.cycles-pp.ktime_get_coarse_real_ts64_mg 1.24 ± 3% +0.1 1.36 ± 3% perf-profile.self.cycles-pp.write 0.07 ± 11% +0.1 0.20 ± 4% perf-profile.self.cycles-pp.cgroup_rstat_updated 1.56 +0.1 1.70 perf-profile.self.cycles-pp.pipe_write 0.25 ± 6% +0.1 0.39 ± 8% perf-profile.self.cycles-pp.cpuacct_charge 0.00 +0.4 0.38 ± 3% perf-profile.self.cycles-pp.account_irqtime 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. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki