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hbvuYwW/hVqPLJ84qjgZjdqNl0DoC+g9AsWf/YYp53eybH4WfRHJRH5q0Fry8fcyoT8TBCYD9ee2xacj0DUF3Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR11MB6439 X-OriginatorOrg: intel.com Hello, kernel test robot noticed a 90.7% regression of stress-ng.tee.ops_per_sec on: commit: 601dc4addd9d6b950a1fafb99343222e7a2b5070 ("mm: avoid leaving partial pfn mappings around in error case") https://github.com/bytedance/kernel.git 6.6-velinux testcase: stress-ng config: x86_64-bytedance-6.6-velinux compiler: gcc-12 test machine: 240 threads 1 sockets Genuine Intel(R) 0000 (Granite Rapids) with 192G memory parameters: nr_threads: 100% testtime: 60s test: tee 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/202502251335.2e185aeb-lkp@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250225/202502251335.2e185aeb-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: gcc-12/performance/x86_64-bytedance-6.6-velinux/100%/debian-12-x86_64-20240206.cgz/lkp-gnr-1ap1/tee/stress-ng/60s commit: 68c53b7070 ("x86/hyperv: fix kexec crash due to VP assist page corruption") 601dc4addd ("mm: avoid leaving partial pfn mappings around in error case") 68c53b70704664d1 601dc4addd9d6b950a1fafb9934 ---------------- --------------------------- %stddev %change %stddev \ | \ 14.03 -4.4 9.61 ± 2% mpstat.cpu.all.usr% 156684 ± 11% -43.7% 88139 ± 10% sched_debug.cpu.nr_switches.stddev 83575265 ± 2% +11.6% 93230318 ± 2% vmstat.system.cs 1.022e+08 ± 2% -32.7% 68732152 proc-vmstat.numa_hit 1.022e+08 ± 2% -32.7% 68731319 proc-vmstat.numa_local 1.022e+08 ± 2% -32.7% 68782633 proc-vmstat.pgalloc_normal 99183980 ± 2% -33.5% 65953617 proc-vmstat.pgfree 1.846e+08 ± 3% -90.7% 17252255 ± 4% stress-ng.tee.ops 3076269 ± 3% -90.7% 287532 ± 4% stress-ng.tee.ops_per_sec 2.62e+09 ± 2% +11.8% 2.93e+09 ± 2% stress-ng.time.involuntary_context_switches 12426 +5.5% 13113 stress-ng.time.system_time 1923 -35.9% 1233 ± 2% stress-ng.time.user_time 2.652e+09 ± 2% +11.3% 2.951e+09 ± 2% stress-ng.time.voluntary_context_switches 0.08 ± 34% +325.9% 0.33 ± 10% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64 0.15 ± 33% +410.0% 0.76 ± 11% perf-sched.sch_delay.avg.ms.pipe_wait_readable.ipipe_prep.part.0.do_tee 0.04 ± 37% +104.6% 0.08 ± 7% perf-sched.sch_delay.avg.ms.pipe_wait_writable.opipe_prep.part.0.do_tee 0.37 ± 34% +203.1% 1.11 ± 14% perf-sched.sch_delay.avg.ms.pipe_write.vfs_write.ksys_write.do_syscall_64 902.70 ± 37% +105.1% 1851 ± 14% perf-sched.sch_delay.max.ms.pipe_wait_writable.opipe_prep.part.0.do_tee 974.89 ± 33% +56.8% 1529 ± 14% perf-sched.sch_delay.max.ms.pipe_write.vfs_write.ksys_write.do_syscall_64 0.28 ± 34% +156.7% 0.71 ± 9% perf-sched.wait_and_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64 0.32 ± 33% +426.5% 1.69 ± 11% perf-sched.wait_and_delay.avg.ms.pipe_wait_readable.ipipe_prep.part.0.do_tee 0.10 ± 36% +100.8% 0.19 ± 7% perf-sched.wait_and_delay.avg.ms.pipe_wait_writable.opipe_prep.part.0.do_tee 0.78 ± 34% +1141.5% 9.64 ± 8% perf-sched.wait_and_delay.avg.ms.pipe_write.vfs_write.ksys_write.do_syscall_64 199732 ± 36% +2534.5% 5262015 ± 6% perf-sched.wait_and_delay.count.pipe_wait_writable.opipe_prep.part.0.do_tee 1805 ± 37% +105.1% 3702 ± 14% perf-sched.wait_and_delay.max.ms.pipe_wait_writable.opipe_prep.part.0.do_tee 1949 ± 33% +56.8% 3058 ± 14% perf-sched.wait_and_delay.max.ms.pipe_write.vfs_write.ksys_write.do_syscall_64 0.20 ± 34% +92.6% 0.39 ± 8% perf-sched.wait_time.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64 0.17 ± 33% +440.2% 0.93 ± 10% perf-sched.wait_time.avg.ms.pipe_wait_readable.ipipe_prep.part.0.do_tee 0.05 ± 35% +98.0% 0.11 ± 7% perf-sched.wait_time.avg.ms.pipe_wait_writable.opipe_prep.part.0.do_tee 0.41 ± 34% +1976.8% 8.53 ± 9% perf-sched.wait_time.avg.ms.pipe_write.vfs_write.ksys_write.do_syscall_64 933.44 ± 35% +99.6% 1863 ± 13% perf-sched.wait_time.max.ms.pipe_wait_writable.opipe_prep.part.0.do_tee 1008 ± 34% +79.6% 1810 ± 14% perf-sched.wait_time.max.ms.pipe_write.vfs_write.ksys_write.do_syscall_64 2.369e+11 -12.0% 2.084e+11 perf-stat.i.branch-instructions 0.25 ± 2% +0.1 0.30 perf-stat.i.branch-miss-rate% 5.15 ± 5% -1.5 3.65 ± 4% perf-stat.i.cache-miss-rate% 1.588e+08 ± 3% +32.5% 2.104e+08 ± 2% perf-stat.i.cache-references 85428822 ± 2% +11.6% 95373015 ± 2% perf-stat.i.context-switches 0.66 +20.2% 0.80 ± 2% perf-stat.i.cpi 7.385e+11 +5.4% 7.786e+11 perf-stat.i.cpu-cycles 4550 ± 30% -40.2% 2722 ± 8% perf-stat.i.cpu-migrations 1553149 ± 7% +24.7% 1937185 ± 4% perf-stat.i.cycles-between-cache-misses 1.122e+12 -12.0% 9.875e+11 perf-stat.i.instructions 1.51 -16.5% 1.27 ± 2% perf-stat.i.ipc 355.97 ± 2% +11.7% 397.57 ± 2% perf-stat.i.metric.K/sec 0.24 ± 2% +0.1 0.29 perf-stat.overall.branch-miss-rate% 5.94 ± 10% -2.1 3.87 ± 6% perf-stat.overall.cache-miss-rate% 0.66 +19.8% 0.79 ± 2% perf-stat.overall.cpi 79456 ± 10% +21.1% 96217 ± 7% perf-stat.overall.cycles-between-cache-misses 1.52 -16.5% 1.27 ± 2% perf-stat.overall.ipc 2.325e+11 -11.9% 2.047e+11 perf-stat.ps.branch-instructions 1.556e+08 ± 3% +33.1% 2.071e+08 ± 2% perf-stat.ps.cache-references 84795990 ± 2% +11.7% 94711692 ± 2% perf-stat.ps.context-switches 7.263e+11 +5.6% 7.669e+11 perf-stat.ps.cpu-cycles 4161 ± 29% -38.5% 2559 ± 7% perf-stat.ps.cpu-migrations 1.101e+12 -11.9% 9.703e+11 perf-stat.ps.instructions 6.744e+13 -12.3% 5.915e+13 perf-stat.total.instructions 28.45 ± 2% -10.8 17.64 perf-profile.calltrace.cycles-pp.write 22.33 ± 2% -8.6 13.69 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write 21.08 ± 2% -8.2 12.90 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 17.00 ± 2% -6.3 10.73 perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 14.82 ± 2% -5.5 9.34 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 11.37 ± 2% -4.3 7.12 perf-profile.calltrace.cycles-pp.pipe_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe 8.09 ± 2% -2.6 5.49 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.read 7.55 ± 2% -2.6 4.97 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.write 3.62 ± 2% -1.2 2.37 perf-profile.calltrace.cycles-pp.copy_page_from_iter.pipe_write.vfs_write.ksys_write.do_syscall_64 3.94 ± 2% -1.2 2.76 perf-profile.calltrace.cycles-pp.copy_page_to_iter.pipe_read.vfs_read.ksys_read.do_syscall_64 1.93 ± 3% -1.1 0.82 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 3.01 ± 2% -1.0 1.96 perf-profile.calltrace.cycles-pp._copy_from_iter.copy_page_from_iter.pipe_write.vfs_write.ksys_write 3.31 ± 2% -1.0 2.32 perf-profile.calltrace.cycles-pp._copy_to_iter.copy_page_to_iter.pipe_read.vfs_read.ksys_read 2.22 ± 2% -0.9 1.36 ± 2% perf-profile.calltrace.cycles-pp.file_update_time.pipe_write.vfs_write.ksys_write.do_syscall_64 2.08 ± 2% -0.7 1.36 perf-profile.calltrace.cycles-pp.copyin._copy_from_iter.copy_page_from_iter.pipe_write.vfs_write 1.78 ± 2% -0.7 1.07 ± 2% perf-profile.calltrace.cycles-pp.inode_needs_update_time.file_update_time.pipe_write.vfs_write.ksys_write 2.39 ± 2% -0.7 1.68 perf-profile.calltrace.cycles-pp.copyout._copy_to_iter.copy_page_to_iter.pipe_read.vfs_read 1.56 -0.5 1.06 perf-profile.calltrace.cycles-pp.mutex_lock.pipe_read.vfs_read.ksys_read.do_syscall_64 1.52 ± 2% -0.5 1.04 perf-profile.calltrace.cycles-pp.mutex_lock.pipe_write.vfs_write.ksys_write.do_syscall_64 0.99 ± 2% -0.4 0.63 perf-profile.calltrace.cycles-pp.__fdget_pos.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write 1.23 ± 2% -0.3 0.90 perf-profile.calltrace.cycles-pp.current_time.atime_needs_update.touch_atime.pipe_read.vfs_read 1.00 ± 2% -0.3 0.69 perf-profile.calltrace.cycles-pp.__fdget_pos.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 0.86 -0.3 0.58 perf-profile.calltrace.cycles-pp.mutex_unlock.pipe_read.vfs_read.ksys_read.do_syscall_64 0.79 ± 2% -0.3 0.54 perf-profile.calltrace.cycles-pp.x64_sys_call.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 0.74 ± 2% -0.2 0.55 perf-profile.calltrace.cycles-pp.mutex_unlock.pipe_write.vfs_write.ksys_write.do_syscall_64 0.62 -0.2 0.43 ± 50% perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.read 0.88 ± 3% -0.1 0.77 ± 4% perf-profile.calltrace.cycles-pp.stress_tee_pipe_read 0.63 ± 3% +0.1 0.69 ± 4% perf-profile.calltrace.cycles-pp.__switch_to_asm.read 0.78 ± 4% +0.1 0.85 ± 4% perf-profile.calltrace.cycles-pp.rseq_ip_fixup.__rseq_handle_notify_resume.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 0.66 ± 4% +0.1 0.74 ± 4% perf-profile.calltrace.cycles-pp.os_xsave.read 0.54 ± 5% +0.1 0.65 ± 4% perf-profile.calltrace.cycles-pp.select_task_rq.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock 1.13 ± 4% +0.1 1.26 ± 5% perf-profile.calltrace.cycles-pp.pick_next_task_fair.__schedule.schedule.pipe_wait_writable.opipe_prep 0.64 ± 5% +0.1 0.77 ± 4% perf-profile.calltrace.cycles-pp.perf_trace_sched_wakeup_template.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock 1.34 ± 4% +0.1 1.47 ± 4% perf-profile.calltrace.cycles-pp.__rseq_handle_notify_resume.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 0.60 ± 4% +0.1 0.72 ± 4% perf-profile.calltrace.cycles-pp.prepare_task_switch.__schedule.schedule.pipe_wait_writable.opipe_prep 0.67 ± 4% +0.1 0.81 ± 5% perf-profile.calltrace.cycles-pp.check_preempt_curr.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common 1.29 ± 4% +0.3 1.55 ± 5% perf-profile.calltrace.cycles-pp.psi_group_change.psi_task_change.activate_task.ttwu_do_activate.try_to_wake_up 1.21 ± 4% +0.3 1.49 ± 3% perf-profile.calltrace.cycles-pp.dequeue_entity.dequeue_task_fair.__schedule.schedule.pipe_wait_writable 0.37 ± 65% +0.3 0.65 ± 4% perf-profile.calltrace.cycles-pp.prepare_task_switch.__schedule.schedule.exit_to_user_mode_loop.exit_to_user_mode_prepare 1.35 ± 4% +0.3 1.64 ± 4% perf-profile.calltrace.cycles-pp.psi_group_change.psi_task_switch.__schedule.schedule.pipe_wait_writable 0.31 ± 81% +0.3 0.60 ± 4% perf-profile.calltrace.cycles-pp.prepare_to_wait_event.pipe_wait_writable.opipe_prep.do_tee.__x64_sys_tee 1.42 ± 5% +0.3 1.71 ± 4% perf-profile.calltrace.cycles-pp.enqueue_entity.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up 0.27 ±100% +0.3 0.61 ± 5% perf-profile.calltrace.cycles-pp.update_curr.enqueue_entity.enqueue_task_fair.activate_task.ttwu_do_activate 1.71 ± 5% +0.4 2.06 ± 4% perf-profile.calltrace.cycles-pp.psi_task_change.activate_task.ttwu_do_activate.try_to_wake_up.autoremove_wake_function 1.72 ± 4% +0.4 2.07 ± 4% perf-profile.calltrace.cycles-pp.switch_mm_irqs_off.__schedule.schedule.pipe_wait_writable.opipe_prep 1.70 ± 4% +0.4 2.07 ± 4% perf-profile.calltrace.cycles-pp.switch_mm_irqs_off.__schedule.schedule.exit_to_user_mode_loop.exit_to_user_mode_prepare 1.85 ± 5% +0.4 2.24 ± 4% perf-profile.calltrace.cycles-pp.psi_task_switch.__schedule.schedule.pipe_wait_writable.opipe_prep 0.00 +0.5 0.55 ± 3% perf-profile.calltrace.cycles-pp.update_curr.dequeue_entity.dequeue_task_fair.__schedule.schedule 0.00 +0.7 0.74 ± 4% perf-profile.calltrace.cycles-pp.reweight_entity.dequeue_task_fair.__schedule.schedule.pipe_wait_writable 0.00 +0.7 0.75 ± 4% perf-profile.calltrace.cycles-pp.reweight_entity.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up 6.14 ± 4% +1.0 7.09 ± 4% perf-profile.calltrace.cycles-pp.__schedule.schedule.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode 6.57 ± 4% +1.0 7.54 ± 4% perf-profile.calltrace.cycles-pp.schedule.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64 10.26 ± 3% +1.0 11.22 ± 4% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 2.18 ± 5% +1.0 3.21 ± 4% perf-profile.calltrace.cycles-pp.dequeue_task_fair.__schedule.schedule.pipe_wait_writable.opipe_prep 9.59 ± 4% +1.1 10.67 ± 4% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 2.39 ± 5% +1.1 3.48 ± 4% perf-profile.calltrace.cycles-pp.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up.autoremove_wake_function 4.28 ± 5% +1.5 5.75 ± 4% perf-profile.calltrace.cycles-pp.activate_task.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common 5.02 ± 5% +1.6 6.65 ± 4% perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock 7.07 ± 5% +2.0 9.11 ± 4% perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_read 7.18 ± 5% +2.1 9.25 ± 4% perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_read.vfs_read 7.78 ± 4% +2.1 9.85 ± 4% perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_read.vfs_read.ksys_read.do_syscall_64 7.35 ± 5% +2.1 9.41 ± 4% perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.pipe_read.vfs_read.ksys_read 9.72 ± 4% +2.5 12.17 ± 4% perf-profile.calltrace.cycles-pp.__schedule.schedule.pipe_wait_writable.opipe_prep.do_tee 10.11 ± 4% +2.5 12.64 ± 4% perf-profile.calltrace.cycles-pp.schedule.pipe_wait_writable.opipe_prep.do_tee.__x64_sys_tee 10.76 ± 4% +2.6 13.41 ± 4% perf-profile.calltrace.cycles-pp.pipe_wait_writable.opipe_prep.do_tee.__x64_sys_tee.do_syscall_64 10.80 ± 4% +2.7 13.46 ± 4% perf-profile.calltrace.cycles-pp.opipe_prep.do_tee.__x64_sys_tee.do_syscall_64.entry_SYSCALL_64_after_hwframe 50.54 +12.7 63.20 perf-profile.calltrace.cycles-pp.read 42.26 +14.2 56.41 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read 28.07 +14.2 42.30 ± 4% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 40.80 +14.5 55.32 ± 2% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 25.97 +14.9 40.85 ± 4% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read 22.18 +16.1 38.23 ± 4% perf-profile.calltrace.cycles-pp.pipe_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe 4.91 +17.4 22.32 ± 10% perf-profile.calltrace.cycles-pp.touch_atime.pipe_read.vfs_read.ksys_read.do_syscall_64 4.46 ± 2% +17.6 22.02 ± 10% perf-profile.calltrace.cycles-pp.atime_needs_update.touch_atime.pipe_read.vfs_read.ksys_read 30.08 ± 2% -11.3 18.76 perf-profile.children.cycles-pp.write 17.39 ± 2% -6.4 11.02 perf-profile.children.cycles-pp.ksys_write 15.39 ± 2% -5.6 9.75 perf-profile.children.cycles-pp.vfs_write 11.81 ± 2% -4.4 7.41 perf-profile.children.cycles-pp.pipe_write 9.06 ± 2% -3.1 5.96 ± 2% perf-profile.children.cycles-pp.entry_SYSCALL_64 3.98 ± 2% -1.4 2.62 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack 3.71 ± 2% -1.3 2.43 perf-profile.children.cycles-pp.copy_page_from_iter 4.08 ± 2% -1.2 2.86 perf-profile.children.cycles-pp.copy_page_to_iter 3.37 ± 2% -1.1 2.25 perf-profile.children.cycles-pp.mutex_lock 13.75 -1.1 12.63 ± 3% perf-profile.children.cycles-pp.syscall_exit_to_user_mode 3.12 ± 2% -1.1 2.04 perf-profile.children.cycles-pp._copy_from_iter 3.46 ± 2% -1.0 2.43 perf-profile.children.cycles-pp._copy_to_iter 2.46 ± 2% -1.0 1.50 ± 2% perf-profile.children.cycles-pp.file_update_time 2.08 ± 2% -0.8 1.26 ± 2% perf-profile.children.cycles-pp.inode_needs_update_time 2.31 ± 2% -0.8 1.53 perf-profile.children.cycles-pp.copyin 2.32 ± 2% -0.8 1.54 perf-profile.children.cycles-pp.__fdget_pos 2.58 ± 2% -0.8 1.81 perf-profile.children.cycles-pp.copyout 11.99 ± 2% -0.6 11.38 ± 3% perf-profile.children.cycles-pp.exit_to_user_mode_prepare 1.70 ± 2% -0.6 1.10 perf-profile.children.cycles-pp.x64_sys_call 1.56 ± 2% -0.5 1.01 perf-profile.children.cycles-pp.__fget_light 1.73 ± 2% -0.5 1.19 perf-profile.children.cycles-pp.mutex_unlock 1.35 ± 2% -0.5 0.87 ± 2% perf-profile.children.cycles-pp.syscall_enter_from_user_mode 1.23 -0.4 0.80 perf-profile.children.cycles-pp.__cond_resched 1.18 ± 2% -0.4 0.79 perf-profile.children.cycles-pp.__get_task_ioprio 1.37 ± 2% -0.4 1.00 perf-profile.children.cycles-pp.current_time 0.45 ± 6% -0.4 0.10 ± 6% perf-profile.children.cycles-pp.splice 0.96 ± 2% -0.3 0.63 perf-profile.children.cycles-pp.security_file_permission 0.90 ± 2% -0.3 0.58 ± 2% perf-profile.children.cycles-pp.rw_verify_area 1.17 -0.3 0.85 ± 2% perf-profile.children.cycles-pp.syscall_return_via_sysret 0.74 ± 2% -0.3 0.44 ± 3% perf-profile.children.cycles-pp.timestamp_truncate 0.90 ± 2% -0.3 0.62 ± 2% perf-profile.children.cycles-pp.ktime_get_coarse_real_ts64 0.31 ± 6% -0.2 0.07 perf-profile.children.cycles-pp.__x64_sys_splice 0.65 ± 2% -0.2 0.42 perf-profile.children.cycles-pp.rcu_all_qs 0.70 ± 2% -0.2 0.47 perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare 0.48 -0.2 0.26 ± 6% perf-profile.children.cycles-pp.switch_fpu_return 0.76 -0.2 0.54 perf-profile.children.cycles-pp.fpregs_assert_state_consistent 0.27 ± 5% -0.2 0.07 ± 5% perf-profile.children.cycles-pp.do_splice 0.62 ± 2% -0.2 0.43 ± 2% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack 0.51 ± 2% -0.2 0.33 ± 2% perf-profile.children.cycles-pp.kill_fasync 0.53 -0.2 0.37 perf-profile.children.cycles-pp.fsnotify_perm 1.04 ± 2% -0.2 0.88 ± 4% perf-profile.children.cycles-pp.stress_tee_pipe_read 0.21 ± 6% -0.1 0.06 ± 6% perf-profile.children.cycles-pp.splice_from_pipe 0.17 ± 6% -0.1 0.06 perf-profile.children.cycles-pp.__splice_from_pipe 0.46 -0.1 0.36 perf-profile.children.cycles-pp.amd_clear_divider 0.24 ± 3% -0.1 0.15 ± 2% perf-profile.children.cycles-pp.__x64_sys_write 0.30 -0.1 0.21 perf-profile.children.cycles-pp.make_vfsgid 0.31 ± 2% -0.1 0.23 ± 2% perf-profile.children.cycles-pp.make_vfsuid 0.24 ± 3% -0.1 0.16 perf-profile.children.cycles-pp.__x64_sys_read 0.23 ± 3% -0.1 0.15 ± 6% perf-profile.children.cycles-pp.read@plt 0.47 ± 3% -0.1 0.40 perf-profile.children.cycles-pp.stress_tee_pipe_write 0.75 ± 4% -0.1 0.68 ± 4% perf-profile.children.cycles-pp.put_prev_entity 0.19 ± 3% -0.1 0.12 ± 3% perf-profile.children.cycles-pp.write@plt 0.13 ± 4% -0.1 0.08 ± 5% perf-profile.children.cycles-pp.__alloc_pages 0.69 -0.0 0.64 ± 3% perf-profile.children.cycles-pp.__raw_spin_lock_irqsave 0.11 ± 4% -0.0 0.07 ± 8% perf-profile.children.cycles-pp.__rb_insert_augmented 0.26 ± 4% -0.0 0.23 ± 5% perf-profile.children.cycles-pp.__enqueue_entity 0.18 ± 3% -0.0 0.14 ± 3% perf-profile.children.cycles-pp.__mem_cgroup_uncharge 0.18 ± 3% -0.0 0.15 ± 4% perf-profile.children.cycles-pp.__folio_put 0.16 ± 3% -0.0 0.14 ± 3% perf-profile.children.cycles-pp.uncharge_batch 0.23 -0.0 0.20 ± 5% perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore 0.11 ± 4% -0.0 0.09 ± 6% perf-profile.children.cycles-pp.page_counter_uncharge 0.10 ± 4% +0.0 0.12 ± 6% perf-profile.children.cycles-pp.check_cfs_rq_runtime 0.30 ± 5% +0.0 0.34 ± 3% perf-profile.children.cycles-pp.place_entity 0.29 ± 4% +0.1 0.34 ± 4% perf-profile.children.cycles-pp.entity_eligible 0.23 ± 4% +0.1 0.29 ± 5% perf-profile.children.cycles-pp.__calc_delta 0.73 ± 3% +0.1 0.82 ± 4% perf-profile.children.cycles-pp.pick_next_entity 0.46 ± 6% +0.1 0.57 ± 5% perf-profile.children.cycles-pp.update_min_vruntime 0.38 ± 8% +0.1 0.50 ± 9% perf-profile.children.cycles-pp.update_cfs_group 0.36 ± 5% +0.2 0.57 ± 4% perf-profile.children.cycles-pp.avg_vruntime 2.00 ± 3% +0.2 2.25 ± 4% perf-profile.children.cycles-pp.update_curr 2.60 ± 3% +0.7 3.29 ± 4% perf-profile.children.cycles-pp.dequeue_task_fair 2.80 ± 3% +0.7 3.54 ± 4% perf-profile.children.cycles-pp.enqueue_task_fair 4.96 ± 3% +0.9 5.83 ± 4% perf-profile.children.cycles-pp.activate_task 5.81 ± 3% +0.9 6.73 ± 4% perf-profile.children.cycles-pp.ttwu_do_activate 8.99 ± 3% +1.0 9.98 ± 4% perf-profile.children.cycles-pp.__wake_up_common_lock 0.52 ± 2% +1.0 1.55 ± 4% perf-profile.children.cycles-pp.reweight_entity 8.46 ± 3% +1.0 9.50 ± 4% perf-profile.children.cycles-pp.__wake_up_common 8.21 ± 3% +1.0 9.25 ± 4% perf-profile.children.cycles-pp.try_to_wake_up 8.28 ± 3% +1.0 9.33 ± 4% perf-profile.children.cycles-pp.autoremove_wake_function 10.80 ± 4% +2.7 13.46 ± 4% perf-profile.children.cycles-pp.pipe_wait_writable 10.80 ± 4% +2.7 13.46 ± 4% perf-profile.children.cycles-pp.opipe_prep 78.70 +5.3 84.02 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe 76.54 +6.0 82.56 perf-profile.children.cycles-pp.do_syscall_64 52.48 +12.0 64.52 perf-profile.children.cycles-pp.read 28.30 +14.2 42.46 ± 4% perf-profile.children.cycles-pp.ksys_read 26.31 +14.8 41.08 ± 4% perf-profile.children.cycles-pp.vfs_read 22.64 +15.9 38.55 ± 4% perf-profile.children.cycles-pp.pipe_read 5.05 +17.4 22.42 ± 10% perf-profile.children.cycles-pp.touch_atime 4.76 +17.5 22.22 ± 10% perf-profile.children.cycles-pp.atime_needs_update 3.86 ± 2% -1.3 2.54 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack 3.95 -1.2 2.70 ± 2% perf-profile.self.cycles-pp.read 3.53 ± 2% -1.2 2.32 perf-profile.self.cycles-pp.write 2.45 ± 2% -0.8 1.60 perf-profile.self.cycles-pp.pipe_write 2.24 ± 2% -0.8 1.44 ± 2% perf-profile.self.cycles-pp.vfs_write 2.26 ± 2% -0.8 1.49 perf-profile.self.cycles-pp.copyin 2.28 -0.7 1.54 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe 2.48 ± 2% -0.7 1.74 perf-profile.self.cycles-pp.copyout 2.11 ± 2% -0.7 1.43 perf-profile.self.cycles-pp.entry_SYSCALL_64 2.08 ± 2% -0.7 1.41 perf-profile.self.cycles-pp.mutex_lock 2.02 ± 2% -0.6 1.38 perf-profile.self.cycles-pp.pipe_read 2.00 -0.6 1.39 perf-profile.self.cycles-pp.vfs_read 1.59 ± 2% -0.5 1.10 perf-profile.self.cycles-pp.mutex_unlock 1.37 ± 2% -0.5 0.88 perf-profile.self.cycles-pp.x64_sys_call 1.38 ± 2% -0.5 0.90 perf-profile.self.cycles-pp.__fget_light 1.57 -0.5 1.09 ± 2% perf-profile.self.cycles-pp.do_syscall_64 1.16 ± 2% -0.4 0.75 perf-profile.self.cycles-pp.syscall_enter_from_user_mode 0.98 ± 2% -0.4 0.60 ± 2% perf-profile.self.cycles-pp.inode_needs_update_time 1.04 ± 2% -0.3 0.70 perf-profile.self.cycles-pp.__get_task_ioprio 0.91 ± 2% -0.3 0.58 ± 2% perf-profile.self.cycles-pp.ksys_write 1.16 -0.3 0.85 ± 2% perf-profile.self.cycles-pp.syscall_return_via_sysret 0.85 ± 2% -0.3 0.54 ± 2% perf-profile.self.cycles-pp._copy_from_iter 1.08 -0.3 0.79 ± 2% perf-profile.self.cycles-pp.syscall_exit_to_user_mode 0.91 ± 2% -0.3 0.63 perf-profile.self.cycles-pp.ksys_read 0.80 ± 2% -0.3 0.52 perf-profile.self.cycles-pp.security_file_permission 0.81 ± 2% -0.3 0.54 perf-profile.self.cycles-pp.__fdget_pos 0.91 ± 2% -0.3 0.64 perf-profile.self.cycles-pp.current_time 0.87 -0.3 0.61 perf-profile.self.cycles-pp._copy_to_iter 0.71 ± 2% -0.2 0.46 perf-profile.self.cycles-pp.__cond_resched 0.58 ± 2% -0.2 0.35 ± 3% perf-profile.self.cycles-pp.timestamp_truncate 0.66 ± 2% -0.2 0.43 ± 2% perf-profile.self.cycles-pp.rw_verify_area 0.94 -0.2 0.71 ± 2% perf-profile.self.cycles-pp.exit_to_user_mode_prepare 0.76 ± 3% -0.2 0.53 ± 3% perf-profile.self.cycles-pp.ktime_get_coarse_real_ts64 0.65 -0.2 0.46 perf-profile.self.cycles-pp.copy_page_to_iter 0.58 ± 2% -0.2 0.40 perf-profile.self.cycles-pp.copy_page_from_iter 0.61 ± 2% -0.2 0.43 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack 0.46 ± 2% -0.2 0.28 ± 2% perf-profile.self.cycles-pp.file_update_time 0.63 ± 2% -0.2 0.45 perf-profile.self.cycles-pp.fpregs_assert_state_consistent 0.86 ± 3% -0.1 0.72 ± 5% perf-profile.self.cycles-pp.stress_tee_pipe_read 0.42 ± 2% -0.1 0.28 perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare 0.39 -0.1 0.26 perf-profile.self.cycles-pp.rcu_all_qs 0.45 ± 2% -0.1 0.32 perf-profile.self.cycles-pp.fsnotify_perm 0.31 ± 2% -0.1 0.19 ± 3% perf-profile.self.cycles-pp.kill_fasync 0.30 ± 3% -0.1 0.20 ± 2% perf-profile.self.cycles-pp.touch_atime 0.25 ± 2% -0.1 0.18 perf-profile.self.cycles-pp.amd_clear_divider 0.39 ± 3% -0.1 0.33 perf-profile.self.cycles-pp.stress_tee_pipe_write 0.22 ± 2% -0.1 0.16 perf-profile.self.cycles-pp.make_vfsgid 0.16 ± 3% -0.1 0.10 ± 3% perf-profile.self.cycles-pp.__x64_sys_write 0.24 ± 2% -0.1 0.18 ± 2% perf-profile.self.cycles-pp.make_vfsuid 0.16 ± 3% -0.0 0.11 ± 4% perf-profile.self.cycles-pp.__x64_sys_read 0.66 -0.0 0.61 ± 3% perf-profile.self.cycles-pp.__raw_spin_lock_irqsave 0.24 ± 4% -0.0 0.20 ± 5% perf-profile.self.cycles-pp.__enqueue_entity 0.09 ± 4% -0.0 0.06 ± 5% perf-profile.self.cycles-pp.__rb_insert_augmented 0.18 ± 2% -0.0 0.16 ± 5% perf-profile.self.cycles-pp.__wake_up_common_lock 0.17 ± 2% -0.0 0.14 ± 4% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore 0.33 ± 2% -0.0 0.31 ± 4% perf-profile.self.cycles-pp.prepare_to_wait_event 0.10 ± 4% -0.0 0.09 ± 5% perf-profile.self.cycles-pp.page_counter_uncharge 0.07 ± 6% +0.0 0.08 perf-profile.self.cycles-pp.perf_swevent_get_recursion_context 0.11 ± 4% +0.0 0.13 ± 5% perf-profile.self.cycles-pp.check_preempt_curr 0.10 ± 9% +0.0 0.12 ± 7% perf-profile.self.cycles-pp.__cgroup_account_cputime 0.15 ± 5% +0.0 0.18 ± 7% perf-profile.self.cycles-pp.resched_curr 0.17 ± 5% +0.0 0.21 ± 4% perf-profile.self.cycles-pp.pipe_wait_writable 0.40 ± 3% +0.0 0.44 ± 4% perf-profile.self.cycles-pp.___perf_sw_event 0.26 ± 4% +0.1 0.31 ± 4% perf-profile.self.cycles-pp.entity_eligible 0.21 ± 4% +0.1 0.27 ± 5% perf-profile.self.cycles-pp.__calc_delta 0.41 ± 6% +0.1 0.51 ± 5% perf-profile.self.cycles-pp.update_min_vruntime 0.90 ± 3% +0.1 1.01 ± 4% perf-profile.self.cycles-pp.update_curr 0.35 ± 8% +0.1 0.46 ± 9% perf-profile.self.cycles-pp.update_cfs_group 0.33 ± 5% +0.2 0.53 ± 4% perf-profile.self.cycles-pp.avg_vruntime 0.22 ± 2% +0.4 0.66 ± 4% perf-profile.self.cycles-pp.reweight_entity 2.93 ± 3% +17.9 20.82 ± 11% perf-profile.self.cycles-pp.atime_needs_update 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