Hello,
kernel test robot noticed a 50.1% improvement of will-it-scale.per_thread_ops on:
commit: 249608ee47132cab3b1adacd9e463548f57bd316 ("mm: respect mmap hint address when aligning for THP")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
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: thread
test: brk1
cpufreq_governor: performance
In addition to that, the commit also has significant impact on the following tests:
+------------------+---------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_thread_ops 51.6% improvement |
| test machine | 104 threads 2 sockets (Skylake) with 192G memory |
| test parameters | cpufreq_governor=performance |
| | mode=thread |
| | nr_task=100% |
| | test=brk2 |
+------------------+---------------------------------------------------------------+
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241212/202412122346.ea54d461-lkp@xxxxxxxxx
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-9.4/thread/100%/debian-12-x86_64-20240206.cgz/lkp-skl-fpga01/brk1/will-it-scale
commit:
89dd878282 ("mm: memcg: declare do_memsw_account inline")
249608ee47 ("mm: respect mmap hint address when aligning for THP")
89dd878282881306 249608ee47132cab3b1adacd9e4
---------------- ---------------------------
%stddev %change %stddev
\ | \
3.271e+09 ± 11% -23.6% 2.499e+09 ± 4% cpuidle..time
534782 ± 3% -9.8% 482625 meminfo.Shmem
7292 ± 10% -16.8% 6068 uptime.idle
117230 +3.0% 120705 vmstat.system.in
10.21 ± 10% -2.5 7.74 ± 4% mpstat.cpu.all.idle%
0.10 -0.0 0.08 mpstat.cpu.all.soft%
0.30 ± 8% +0.1 0.38 ± 2% mpstat.cpu.all.usr%
1562083 ± 5% -28.9% 1111214 ± 6% numa-numastat.node0.local_node
1600171 ± 5% -27.1% 1165935 ± 5% numa-numastat.node0.numa_hit
2469533 ± 5% -36.7% 1562269 ± 7% numa-numastat.node1.local_node
2538689 ± 5% -36.4% 1615104 ± 7% numa-numastat.node1.numa_hit
1599764 ± 5% -27.2% 1165290 ± 5% numa-vmstat.node0.numa_hit
1561676 ± 5% -28.9% 1110570 ± 6% numa-vmstat.node0.numa_local
2537854 ± 5% -36.4% 1613883 ± 7% numa-vmstat.node1.numa_hit
2468697 ± 5% -36.8% 1561112 ± 7% numa-vmstat.node1.numa_local
517.00 ± 6% +44.8% 748.67 ± 5% perf-c2c.DRAM.local
5599 ± 3% +22.8% 6877 ± 3% perf-c2c.DRAM.remote
5356 ± 2% +17.2% 6277 ± 4% perf-c2c.HITM.local
3995 ± 3% +12.9% 4512 ± 2% perf-c2c.HITM.remote
207757 ± 3% +50.1% 311758 ± 4% will-it-scale.104.threads
9.27 ± 4% -19.6% 7.45 ± 4% will-it-scale.104.threads_idle
1997 ± 3% +50.1% 2997 ± 4% will-it-scale.per_thread_ops
207757 ± 3% +50.1% 311758 ± 4% will-it-scale.workload
20771245 ± 7% +19.8% 24875862 ± 5% sched_debug.cfs_rq:/.avg_vruntime.avg
6013540 ± 9% +29.6% 7795227 ± 15% sched_debug.cfs_rq:/.avg_vruntime.stddev
20771245 ± 7% +19.8% 24875862 ± 5% sched_debug.cfs_rq:/.min_vruntime.avg
6013540 ± 9% +29.6% 7795227 ± 15% sched_debug.cfs_rq:/.min_vruntime.stddev
5286 ± 5% -32.3% 3580 ± 9% sched_debug.cpu.avg_idle.min
304791 -4.4% 291399 proc-vmstat.nr_active_anon
1009858 -1.3% 996889 proc-vmstat.nr_file_pages
23935 -4.3% 22912 proc-vmstat.nr_mapped
133626 ± 3% -9.7% 120653 proc-vmstat.nr_shmem
108257 -1.7% 106463 proc-vmstat.nr_slab_unreclaimable
304791 -4.4% 291399 proc-vmstat.nr_zone_active_anon
4140560 -32.8% 2781620 ± 2% proc-vmstat.numa_hit
4033316 -33.7% 2674065 ± 2% proc-vmstat.numa_local
7314624 ± 2% -37.7% 4554492 ± 3% proc-vmstat.pgalloc_normal
1102175 -2.4% 1075842 proc-vmstat.pgfault
7136742 ± 2% -38.5% 4391328 ± 3% proc-vmstat.pgfree
0.49 ± 6% +23.1% 0.60 ± 6% perf-stat.i.MPKI
37.67 +4.2 41.92 perf-stat.i.cache-miss-rate%
13495545 ± 3% +26.4% 17064915 ± 6% perf-stat.i.cache-misses
36075782 ± 2% +14.0% 41135363 ± 5% perf-stat.i.cache-references
9.29 +2.5% 9.52 perf-stat.i.cpi
2.621e+11 +2.5% 2.685e+11 perf-stat.i.cpu-cycles
212.81 -1.4% 209.80 perf-stat.i.cpu-migrations
19736 ± 4% -19.1% 15958 ± 7% perf-stat.i.cycles-between-cache-misses
0.11 ± 2% -3.3% 0.11 perf-stat.i.ipc
0.48 ± 4% +25.9% 0.60 ± 6% perf-stat.overall.MPKI
37.35 +4.0 41.40 perf-stat.overall.cache-miss-rate%
9.33 +2.0% 9.52 perf-stat.overall.cpi
19440 ± 3% -18.7% 15809 ± 7% perf-stat.overall.cycles-between-cache-misses
0.11 -2.0% 0.11 perf-stat.overall.ipc
40994713 ± 3% -33.4% 27301203 ± 4% perf-stat.overall.path-length
13453027 ± 3% +26.4% 17009626 ± 6% perf-stat.ps.cache-misses
36008186 ± 2% +14.0% 41056969 ± 5% perf-stat.ps.cache-references
2.612e+11 +2.5% 2.676e+11 perf-stat.ps.cpu-cycles
212.16 -1.4% 209.13 perf-stat.ps.cpu-migrations
0.00 ±143% +614.3% 0.01 ± 38% perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.00 ±223% +12311.1% 0.19 ±115% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
0.00 +2575.0% 0.05 ± 92% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.vms_gather_munmap_vmas
0.04 ±175% +275.8% 0.15 ± 89% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.02 ±120% +669.0% 0.15 ± 89% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.01 ± 32% +657.1% 0.07 ± 51% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.15 ±114% +559.8% 1.00 ± 19% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
0.00 ± 55% +229.2% 0.01 ± 22% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.04 ± 61% +378.2% 0.19 ± 15% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range.do_poll.constprop.0.do_sys_poll
0.01 ± 15% +160.3% 0.03 ±109% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.01 ± 30% +216.1% 0.02 ± 12% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
0.03 ±163% +448.7% 0.18 ± 24% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 30% +96.7% 0.02 ± 11% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 ± 86% +234.6% 0.05 ± 60% perf-sched.sch_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.00 ±143% +700.0% 0.01 ± 33% perf-sched.sch_delay.max.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.00 ±223% +50788.9% 0.76 ±137% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
1.05 ±141% +326.0% 4.46 ± 67% perf-sched.sch_delay.max.ms.__cond_resched.down_write.vma_expand.vma_merge_new_range.do_brk_flags
0.60 ±186% +271.1% 2.25 ± 74% perf-sched.sch_delay.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.02 ± 97% +14710.9% 2.72 ± 47% perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.vms_gather_munmap_vmas
0.17 ±208% +228.7% 0.54 ± 80% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.10 ±150% +2829.8% 2.93 ± 34% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.73 ± 99% +137.5% 4.10 ± 5% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
0.05 ±162% +3038.5% 1.62 ± 72% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown]
0.18 ±174% +1759.9% 3.30 ± 41% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown]
2.19 ± 69% +74.8% 3.82 ± 6% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range.do_poll.constprop.0.do_sys_poll
1.16 ± 95% +211.8% 3.61 ± 8% perf-sched.sch_delay.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.01 ± 25% +200.0% 0.02 ± 11% perf-sched.total_sch_delay.average.ms
5.20 ± 7% +55.1% 8.06 ± 7% perf-sched.total_wait_and_delay.average.ms
338197 ± 7% -43.5% 190977 ± 7% perf-sched.total_wait_and_delay.count.ms
5.19 ± 7% +54.9% 8.04 ± 7% perf-sched.total_wait_time.average.ms
6.72 ± 6% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
70.88 ±162% +311.9% 292.00 ± 22% perf-sched.wait_and_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.91 ± 15% -43.6% 0.51 ± 3% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
279.25 ± 11% +24.7% 348.09 ± 5% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
607.00 ± 6% -100.0% 0.00 perf-sched.wait_and_delay.count.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
328796 ± 8% -45.0% 180683 ± 7% perf-sched.wait_and_delay.count.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
3211 ± 6% -20.9% 2541 ± 7% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
1001 -100.0% 0.00 perf-sched.wait_and_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.00 ±223% +52555.6% 0.79 ± 31% perf-sched.wait_time.avg.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
0.00 ±142% +1.2e+05% 1.79 ± 90% perf-sched.wait_time.avg.ms.__cond_resched.down_write.vma_prepare.commit_merge.vma_expand
70.88 ±162% +312.0% 291.99 ± 22% perf-sched.wait_time.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.91 ± 16% -45.1% 0.50 ± 3% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
0.98 ± 11% +43.4% 1.40 ± 25% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
279.22 ± 11% +24.7% 348.08 ± 5% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.00 ±223% +1.5e+05% 2.21 ± 63% perf-sched.wait_time.max.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
0.00 ±145% +2.2e+05% 3.74 ± 71% perf-sched.wait_time.max.ms.__cond_resched.down_write.vma_prepare.commit_merge.vma_expand
0.05 ±161% +3018.3% 1.62 ± 72% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_call_function_single.[unknown]
0.59 ± 3% -0.3 0.27 ±100% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable
0.57 ± 6% -0.3 0.26 ±100% perf-profile.calltrace.cycles-pp.intel_idle_ibrs.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
1.70 ± 4% -0.2 1.49 ± 3% perf-profile.calltrace.cycles-pp.common_startup_64
1.61 ± 4% -0.2 1.40 ± 3% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
1.61 ± 4% -0.2 1.40 ± 3% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
1.62 ± 4% -0.2 1.42 ± 3% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.common_startup_64
1.68 ± 4% -0.2 1.47 ± 3% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.common_startup_64
1.68 ± 4% -0.2 1.48 ± 3% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.common_startup_64
1.68 ± 4% -0.2 1.48 ± 3% perf-profile.calltrace.cycles-pp.start_secondary.common_startup_64
0.72 -0.1 0.58 ± 2% perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
0.81 -0.1 0.70 perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
97.96 +0.1 98.08 perf-profile.calltrace.cycles-pp.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
97.98 +0.1 98.11 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
96.80 +0.1 96.94 perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk.do_syscall_64
98.01 +0.1 98.16 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.brk
96.91 +0.2 97.07 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
96.94 +0.2 97.12 perf-profile.calltrace.cycles-pp.down_write_killable.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
95.81 +0.2 96.00 perf-profile.calltrace.cycles-pp.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
98.17 +0.2 98.40 perf-profile.calltrace.cycles-pp.brk
0.00 +0.6 0.59 ± 2% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.53 ± 6% -0.4 0.17 ± 8% perf-profile.children.cycles-pp.intel_idle_irq
1.00 ± 4% -0.3 0.70 ± 3% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
1.70 ± 4% -0.2 1.49 ± 3% perf-profile.children.cycles-pp.common_startup_64
1.70 ± 4% -0.2 1.49 ± 3% perf-profile.children.cycles-pp.cpu_startup_entry
1.63 ± 4% -0.2 1.42 ± 3% perf-profile.children.cycles-pp.cpuidle_enter
1.63 ± 4% -0.2 1.42 ± 3% perf-profile.children.cycles-pp.cpuidle_enter_state
1.64 ± 4% -0.2 1.43 ± 3% perf-profile.children.cycles-pp.cpuidle_idle_call
1.70 ± 4% -0.2 1.49 ± 3% perf-profile.children.cycles-pp.do_idle
1.68 ± 4% -0.2 1.48 ± 3% perf-profile.children.cycles-pp.start_secondary
0.21 ± 2% -0.2 0.05 perf-profile.children.cycles-pp.mas_store_gfp
0.72 -0.1 0.58 ± 2% perf-profile.children.cycles-pp.do_vmi_align_munmap
0.82 -0.1 0.70 perf-profile.children.cycles-pp.rwsem_spin_on_owner
0.17 ± 2% -0.1 0.06 ± 7% perf-profile.children.cycles-pp.mas_store_prealloc
0.17 ± 2% -0.1 0.07 ± 5% perf-profile.children.cycles-pp.vma_complete
0.58 ± 6% -0.1 0.49 ± 9% perf-profile.children.cycles-pp.intel_idle_ibrs
0.64 ± 3% -0.1 0.56 ± 3% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.54 ± 3% -0.1 0.47 ± 4% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.54 ± 4% -0.1 0.47 ± 4% perf-profile.children.cycles-pp.hrtimer_interrupt
0.45 ± 3% -0.1 0.39 ± 4% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.41 ± 4% -0.1 0.36 ± 5% perf-profile.children.cycles-pp.tick_nohz_handler
0.35 -0.0 0.31 ± 3% perf-profile.children.cycles-pp.vms_gather_munmap_vmas
0.32 -0.0 0.27 ± 3% perf-profile.children.cycles-pp.__split_vma
0.36 ± 2% -0.0 0.31 ± 5% perf-profile.children.cycles-pp.update_process_times
0.14 ± 6% -0.0 0.12 ± 4% perf-profile.children.cycles-pp.handle_softirqs
0.23 ± 2% -0.0 0.20 ± 4% perf-profile.children.cycles-pp.sched_tick
0.13 ± 6% -0.0 0.10 ± 4% perf-profile.children.cycles-pp.rcu_core
0.13 ± 5% -0.0 0.10 ± 4% perf-profile.children.cycles-pp.rcu_do_batch
0.15 ± 3% -0.0 0.12 ± 3% perf-profile.children.cycles-pp.kmem_cache_free
0.06 ± 6% -0.0 0.04 ± 44% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.06 ± 11% -0.0 0.05 perf-profile.children.cycles-pp.kthread
0.06 ± 11% -0.0 0.05 perf-profile.children.cycles-pp.ret_from_fork
0.06 ± 11% -0.0 0.05 perf-profile.children.cycles-pp.ret_from_fork_asm
0.06 ± 7% -0.0 0.05 perf-profile.children.cycles-pp.smpboot_thread_fn
0.06 -0.0 0.05 perf-profile.children.cycles-pp.__slab_free
0.06 ± 7% +0.0 0.08 ± 5% perf-profile.children.cycles-pp.vma_expand
0.07 ± 7% +0.0 0.09 ± 4% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.08 ± 6% +0.0 0.10 perf-profile.children.cycles-pp.vma_merge_new_range
0.06 ± 9% +0.0 0.08 ± 4% perf-profile.children.cycles-pp.anon_vma_clone
0.08 ± 5% +0.0 0.11 ± 6% perf-profile.children.cycles-pp.up_write
0.06 ± 8% +0.0 0.09 ± 8% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.05 ± 7% +0.0 0.09 ± 7% perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
0.08 ± 5% +0.0 0.12 ± 3% perf-profile.children.cycles-pp.vms_clear_ptes
0.12 ± 4% +0.0 0.16 ± 2% perf-profile.children.cycles-pp.do_brk_flags
0.00 +0.1 0.05 perf-profile.children.cycles-pp.unlink_anon_vmas
0.00 +0.1 0.06 ± 9% perf-profile.children.cycles-pp.entry_SYSCALL_64
0.00 +0.1 0.06 ± 8% perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
0.00 +0.1 0.06 ± 8% perf-profile.children.cycles-pp.vm_area_dup
0.00 +0.1 0.06 perf-profile.children.cycles-pp.free_pgtables
0.16 ± 4% +0.1 0.22 ± 3% perf-profile.children.cycles-pp.vms_complete_munmap_vmas
0.00 +0.1 0.07 ± 5% perf-profile.children.cycles-pp.mas_wr_node_store
0.00 +0.1 0.11 ± 4% perf-profile.children.cycles-pp.poll_idle
97.96 +0.1 98.08 perf-profile.children.cycles-pp.__do_sys_brk
98.02 +0.1 98.14 perf-profile.children.cycles-pp.do_syscall_64
96.80 +0.1 96.94 perf-profile.children.cycles-pp.rwsem_optimistic_spin
98.05 +0.1 98.19 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
0.45 ± 4% +0.2 0.60 ± 2% perf-profile.children.cycles-pp.intel_idle
96.91 +0.2 97.07 perf-profile.children.cycles-pp.rwsem_down_write_slowpath
96.94 +0.2 97.12 perf-profile.children.cycles-pp.down_write_killable
95.84 +0.2 96.02 perf-profile.children.cycles-pp.osq_lock
98.18 +0.2 98.40 perf-profile.children.cycles-pp.brk
0.50 ± 6% -0.3 0.16 ± 9% perf-profile.self.cycles-pp.intel_idle_irq
0.81 -0.1 0.70 perf-profile.self.cycles-pp.rwsem_spin_on_owner
0.58 ± 6% -0.1 0.49 ± 9% perf-profile.self.cycles-pp.intel_idle_ibrs
0.06 ± 8% +0.0 0.08 ± 5% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.06 ± 7% +0.0 0.09 ± 4% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.00 +0.1 0.05 perf-profile.self.cycles-pp.entry_SYSCALL_64
0.00 +0.1 0.05 ± 7% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.13 ± 2% +0.1 0.18 ± 2% perf-profile.self.cycles-pp.rwsem_optimistic_spin
0.00 +0.1 0.06 ± 6% perf-profile.self.cycles-pp.up_write
0.00 +0.1 0.11 ± 4% perf-profile.self.cycles-pp.poll_idle
0.45 ± 4% +0.2 0.60 ± 2% perf-profile.self.cycles-pp.intel_idle
95.28 +0.3 95.53 perf-profile.self.cycles-pp.osq_lock
***************************************************************************************************
lkp-skl-fpga01: 104 threads 2 sockets (Skylake) with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-9.4/thread/100%/debian-12-x86_64-20240206.cgz/lkp-skl-fpga01/brk2/will-it-scale
commit:
89dd878282 ("mm: memcg: declare do_memsw_account inline")
249608ee47 ("mm: respect mmap hint address when aligning for THP")
89dd878282881306 249608ee47132cab3b1adacd9e4
---------------- ---------------------------
%stddev %change %stddev
\ | \
3.415e+09 ± 5% -18.3% 2.791e+09 ± 8% cpuidle..time
117810 +2.1% 120255 vmstat.system.in
10.66 ± 4% -2.0 8.69 ± 8% mpstat.cpu.all.idle%
0.10 -0.0 0.08 ± 2% mpstat.cpu.all.soft%
0.31 +0.1 0.37 ± 2% mpstat.cpu.all.usr%
1679216 ± 5% -30.5% 1166751 ± 9% numa-numastat.node0.local_node
1728543 ± 4% -29.7% 1214908 ± 8% numa-numastat.node0.numa_hit
2318360 ± 3% -30.9% 1600917 ± 6% numa-numastat.node1.local_node
2376686 ± 2% -30.1% 1660471 ± 5% numa-numastat.node1.numa_hit
1726631 ± 4% -29.7% 1214257 ± 8% numa-vmstat.node0.numa_hit
1677304 ± 5% -30.5% 1166100 ± 9% numa-vmstat.node0.numa_local
2374815 ± 2% -30.1% 1659314 ± 5% numa-vmstat.node1.numa_hit
2316489 ± 3% -30.9% 1599760 ± 6% numa-vmstat.node1.numa_local
198860 +51.6% 301493 ± 2% will-it-scale.104.threads
10.10 -22.5% 7.82 ± 2% will-it-scale.104.threads_idle
1911 +51.6% 2898 ± 2% will-it-scale.per_thread_ops
198860 +51.6% 301493 ± 2% will-it-scale.workload
506.67 ± 6% +50.9% 764.67 ± 3% perf-c2c.DRAM.local
5447 +27.1% 6925 ± 3% perf-c2c.DRAM.remote
5367 ± 2% +18.6% 6364 perf-c2c.HITM.local
3830 +17.8% 4513 ± 3% perf-c2c.HITM.remote
9197 +18.3% 10877 ± 2% perf-c2c.HITM.total
23736 -1.8% 23303 proc-vmstat.nr_mapped
108712 -2.0% 106548 proc-vmstat.nr_slab_unreclaimable
4105528 -30.0% 2875907 proc-vmstat.numa_hit
3997875 -30.8% 2768196 proc-vmstat.numa_local
236448 ± 14% -25.0% 177254 ± 12% proc-vmstat.numa_pte_updates
7242851 -34.3% 4757136 proc-vmstat.pgalloc_normal
7071106 -35.1% 4589946 proc-vmstat.pgfree
19917807 ± 2% +24.3% 24752419 ± 3% sched_debug.cfs_rq:/.avg_vruntime.avg
38832674 ± 6% +31.8% 51167079 ± 8% sched_debug.cfs_rq:/.avg_vruntime.max
5538759 ± 3% +56.3% 8659607 ± 16% sched_debug.cfs_rq:/.avg_vruntime.stddev
19917807 ± 2% +24.3% 24752418 ± 3% sched_debug.cfs_rq:/.min_vruntime.avg
38832674 ± 6% +31.8% 51167093 ± 8% sched_debug.cfs_rq:/.min_vruntime.max
5538759 ± 3% +56.3% 8659606 ± 16% sched_debug.cfs_rq:/.min_vruntime.stddev
894.81 ± 7% +11.9% 1001 ± 8% sched_debug.cfs_rq:/.util_est.max
5560 ± 6% -40.7% 3294 ± 3% sched_debug.cpu.avg_idle.min
0.52 ± 3% +21.7% 0.63 ± 3% perf-stat.i.MPKI
17623556 -6.6% 16458641 ± 3% perf-stat.i.branch-misses
37.96 +3.6 41.59 perf-stat.i.cache-miss-rate%
14340737 ± 3% +22.2% 17528616 ± 2% perf-stat.i.cache-misses
38069590 ± 2% +11.5% 42445235 ± 2% perf-stat.i.cache-references
9.24 +2.6% 9.48 perf-stat.i.cpi
2.602e+11 +2.4% 2.665e+11 perf-stat.i.cpu-cycles
18443 ± 3% -17.1% 15286 ± 2% perf-stat.i.cycles-between-cache-misses
0.51 ± 2% +22.2% 0.63 ± 2% perf-stat.overall.MPKI
0.32 -0.0 0.29 ± 2% perf-stat.overall.branch-miss-rate%
37.63 +3.6 41.25 perf-stat.overall.cache-miss-rate%
9.28 +2.4% 9.50 perf-stat.overall.cpi
18154 ± 2% -16.2% 15205 ± 2% perf-stat.overall.cycles-between-cache-misses
0.11 -2.3% 0.11 perf-stat.overall.ipc
42574383 -33.8% 28187632 ± 2% perf-stat.overall.path-length
17580646 -6.7% 16398374 ± 3% perf-stat.ps.branch-misses
14294844 ± 3% +22.2% 17469729 ± 2% perf-stat.ps.cache-misses
37981661 ± 2% +11.5% 42347645 ± 2% perf-stat.ps.cache-references
2.593e+11 +2.4% 2.655e+11 perf-stat.ps.cpu-cycles
0.00 ±147% +500.0% 0.01 ± 14% perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.11 ± 8% -32.5% 0.08 ± 23% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
0.00 ±223% +10641.7% 0.21 ± 55% perf-sched.sch_delay.avg.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
0.00 ±179% +2890.9% 0.05 ± 53% perf-sched.sch_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.01 ±135% +390.2% 0.07 ±100% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.vm_area_dup.__split_vma.vms_gather_munmap_vmas
0.00 ±223% +1475.0% 0.01 ± 71% perf-sched.sch_delay.avg.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
0.00 ±223% +9837.5% 0.13 ±121% perf-sched.sch_delay.avg.ms.__cond_resched.shmem_inode_acct_blocks.shmem_alloc_and_add_folio.shmem_get_folio_gfp.shmem_write_begin
0.00 ± 14% +1830.0% 0.06 ± 97% perf-sched.sch_delay.avg.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.01 ± 8% +2452.0% 0.21 ± 64% perf-sched.sch_delay.avg.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.01 ± 16% +870.6% 0.08 ± 84% perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.01 ± 6% +823.9% 0.07 ± 31% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 ±100% +411.1% 0.01 ± 9% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
0.02 ± 34% +3178.5% 0.71 ± 32% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
0.01 ± 75% +1602.7% 0.10 ±143% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
0.12 ±150% -87.6% 0.02 ± 45% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown]
0.00 ±150% +1047.1% 0.03 ±105% perf-sched.sch_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
0.00 ± 30% +346.7% 0.01 ± 20% perf-sched.sch_delay.avg.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.02 ± 68% +1050.0% 0.19 ± 27% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range.do_poll.constprop.0.do_sys_poll
0.01 ± 14% +376.8% 0.04 ±105% perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
0.01 ± 9% +138.9% 0.01 ± 12% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
0.01 +2033.3% 0.13 ± 33% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.01 ± 11% +216.7% 0.03 ± 83% perf-sched.sch_delay.avg.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.01 ± 5% +172.1% 0.02 ± 11% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.01 ± 61% +173.4% 0.03 ± 46% perf-sched.sch_delay.avg.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.00 ±147% +787.5% 0.01 ± 37% perf-sched.sch_delay.max.ms.__cond_resched.__alloc_pages_noprof.alloc_pages_mpol_noprof.folio_alloc_mpol_noprof.vma_alloc_folio_noprof
0.03 ±223% +4840.4% 1.24 ± 64% perf-sched.sch_delay.max.ms.__cond_resched.__do_fault.do_read_fault.do_pte_missing.__handle_mm_fault
0.00 ±223% +41625.0% 0.83 ± 60% perf-sched.sch_delay.max.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
0.16 ±213% +813.2% 1.48 ± 78% perf-sched.sch_delay.max.ms.__cond_resched.down_write.vma_expand.vma_merge_new_range.do_brk_flags
0.00 ±167% +43144.0% 1.80 ± 59% perf-sched.sch_delay.max.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.00 ±223% +22188.9% 0.33 ±216% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.fdget_pos.ksys_write.do_syscall_64
0.00 ±223% +2458.3% 0.05 ±154% perf-sched.sch_delay.max.ms.__cond_resched.mutex_lock.perf_poll.do_poll.constprop
0.00 ±223% +68268.8% 1.82 ± 71% perf-sched.sch_delay.max.ms.__cond_resched.shmem_inode_acct_blocks.shmem_alloc_and_add_folio.shmem_get_folio_gfp.shmem_write_begin
0.00 ± 11% +15918.5% 0.72 ±101% perf-sched.sch_delay.max.ms.__cond_resched.stop_one_cpu.sched_exec.bprm_execve.part
0.01 ± 12% +5779.5% 0.72 ± 50% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.02 ± 53% +2545.4% 0.48 ± 73% perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.common_nsleep.__x64_sys_clock_nanosleep
0.02 ± 18% +15675.3% 2.45 ± 11% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 ±100% +1100.0% 0.02 ± 76% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown].[unknown]
0.22 ± 70% +1725.7% 3.94 ± 4% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown]
0.01 ± 72% +3737.3% 0.33 ±114% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
0.00 ±141% +25095.7% 0.97 ±144% perf-sched.sch_delay.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
0.58 ± 79% +423.4% 3.03 ± 43% perf-sched.sch_delay.max.ms.pipe_read.vfs_read.ksys_read.do_syscall_64
0.91 ± 75% +324.0% 3.84 ± 3% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range.do_poll.constprop.0.do_sys_poll
0.02 ± 49% +18885.6% 3.51 ± 21% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.06 ± 5% +3199.2% 2.01 perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.93 ±115% +238.9% 3.16 ± 52% perf-sched.sch_delay.max.ms.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
5.53 ± 3% +35.2% 7.48 ± 3% perf-sched.total_wait_and_delay.average.ms
330090 -37.0% 207837 ± 4% perf-sched.total_wait_and_delay.count.ms
5.52 ± 3% +35.2% 7.46 ± 3% perf-sched.total_wait_time.average.ms
6.70 ± 4% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
167.82 ± 96% -92.4% 12.75 ± 78% perf-sched.wait_and_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
1.20 ± 4% -58.9% 0.49 ± 4% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
280.09 ± 3% +36.1% 381.15 ± 3% perf-sched.wait_and_delay.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
606.50 ± 6% -100.0% 0.00 perf-sched.wait_and_delay.count.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
320972 -38.3% 197924 ± 4% perf-sched.wait_and_delay.count.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
3118 ± 2% -24.6% 2352 ± 2% perf-sched.wait_and_delay.count.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
693.67 -9.8% 626.00 perf-sched.wait_and_delay.count.worker_thread.kthread.ret_from_fork.ret_from_fork_asm
1000 -100.0% 0.00 perf-sched.wait_and_delay.max.ms.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
167.82 ± 96% -91.5% 14.30 ± 56% perf-sched.wait_time.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write
0.55 ±223% +762.9% 4.74 ±117% perf-sched.wait_time.avg.ms.__cond_resched.mutex_lock.fdget_pos.ksys_write.do_syscall_64
0.61 ± 3% +24.0% 0.76 ± 8% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.26 ±221% +3041.2% 8.22 ±129% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
1.20 ± 4% -59.9% 0.48 ± 4% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
0.91 +45.7% 1.32 ± 6% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
280.07 ± 3% +36.1% 381.13 ± 3% perf-sched.wait_time.avg.ms.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.43 ±223% +525.8% 2.69 ± 57% perf-sched.wait_time.max.ms.__cond_resched.__wait_for_common.wait_for_completion_state.kernel_clone.__x64_sys_vfork
3.29 ±223% +1258.4% 44.70 ± 98% perf-sched.wait_time.max.ms.__cond_resched.mutex_lock.fdget_pos.ksys_write.do_syscall_64
29.75 ± 9% +42.0% 42.24 ± 16% perf-sched.wait_time.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.52 ±222% +67466.8% 350.90 ±131% perf-sched.wait_time.max.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
3.60 ± 5% +106.8% 7.43 ± 11% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
5.04 +36.0% 6.86 ± 4% perf-sched.wait_time.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1.72 ± 3% -0.2 1.47 ± 3% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
1.73 ± 3% -0.2 1.48 ± 3% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.common_startup_64
1.72 ± 3% -0.2 1.47 ± 3% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
1.82 ± 3% -0.2 1.57 ± 3% perf-profile.calltrace.cycles-pp.common_startup_64
1.80 ± 3% -0.2 1.56 ± 3% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.common_startup_64
1.80 ± 3% -0.2 1.56 ± 3% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.common_startup_64
1.80 ± 3% -0.2 1.56 ± 3% perf-profile.calltrace.cycles-pp.start_secondary.common_startup_64
0.63 ± 3% -0.2 0.43 ± 44% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable
0.73 -0.1 0.59 perf-profile.calltrace.cycles-pp.do_vmi_align_munmap.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
0.82 -0.1 0.71 perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
0.63 ± 3% -0.1 0.54 ± 4% perf-profile.calltrace.cycles-pp.intel_idle_ibrs.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
97.85 +0.2 98.02 perf-profile.calltrace.cycles-pp.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
97.87 +0.2 98.04 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
96.68 +0.2 96.85 perf-profile.calltrace.cycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk.do_syscall_64
97.90 +0.2 98.09 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.brk
96.79 +0.2 96.99 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
96.82 +0.2 97.04 perf-profile.calltrace.cycles-pp.down_write_killable.__do_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe.brk
95.68 +0.2 95.91 perf-profile.calltrace.cycles-pp.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write_killable.__do_sys_brk
98.06 +0.3 98.32 perf-profile.calltrace.cycles-pp.brk
0.00 +0.6 0.60 ± 3% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.56 ± 4% -0.4 0.16 ± 4% perf-profile.children.cycles-pp.intel_idle_irq
1.06 ± 3% -0.4 0.70 ± 4% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
1.73 ± 3% -0.2 1.49 ± 3% perf-profile.children.cycles-pp.cpuidle_enter
1.73 ± 3% -0.2 1.49 ± 3% perf-profile.children.cycles-pp.cpuidle_enter_state
1.74 ± 3% -0.2 1.50 ± 3% perf-profile.children.cycles-pp.cpuidle_idle_call
1.82 ± 3% -0.2 1.57 ± 3% perf-profile.children.cycles-pp.common_startup_64
1.82 ± 3% -0.2 1.57 ± 3% perf-profile.children.cycles-pp.cpu_startup_entry
1.82 ± 3% -0.2 1.57 ± 3% perf-profile.children.cycles-pp.do_idle
1.80 ± 3% -0.2 1.56 ± 3% perf-profile.children.cycles-pp.start_secondary
0.21 -0.2 0.05 ± 7% perf-profile.children.cycles-pp.mas_store_gfp
0.73 -0.1 0.59 perf-profile.children.cycles-pp.do_vmi_align_munmap
0.69 ± 2% -0.1 0.56 ± 4% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.58 ± 3% -0.1 0.47 ± 4% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.83 -0.1 0.72 perf-profile.children.cycles-pp.rwsem_spin_on_owner
0.17 ± 2% -0.1 0.07 ± 7% perf-profile.children.cycles-pp.mas_store_prealloc
0.58 ± 3% -0.1 0.47 ± 4% perf-profile.children.cycles-pp.hrtimer_interrupt
0.17 ± 2% -0.1 0.07 ± 6% perf-profile.children.cycles-pp.vma_complete
0.49 ± 3% -0.1 0.39 ± 4% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.63 ± 4% -0.1 0.55 ± 4% perf-profile.children.cycles-pp.intel_idle_ibrs
0.44 ± 4% -0.1 0.36 ± 4% perf-profile.children.cycles-pp.tick_nohz_handler
0.39 ± 3% -0.1 0.32 ± 4% perf-profile.children.cycles-pp.update_process_times
0.32 -0.0 0.28 perf-profile.children.cycles-pp.__split_vma
0.36 -0.0 0.31 perf-profile.children.cycles-pp.vms_gather_munmap_vmas
0.24 ± 4% -0.0 0.20 ± 3% perf-profile.children.cycles-pp.sched_tick
0.19 ± 7% -0.0 0.16 ± 2% perf-profile.children.cycles-pp.task_tick_fair
0.06 ± 6% -0.0 0.03 ± 70% perf-profile.children.cycles-pp.smpboot_thread_fn
0.12 ± 4% -0.0 0.10 ± 6% perf-profile.children.cycles-pp.rcu_do_batch
0.13 ± 3% -0.0 0.10 ± 3% perf-profile.children.cycles-pp.rcu_core
0.14 ± 2% -0.0 0.12 ± 4% perf-profile.children.cycles-pp.handle_softirqs
0.08 ± 4% -0.0 0.06 ± 11% perf-profile.children.cycles-pp.get_jiffies_update
0.08 ± 5% -0.0 0.06 ± 11% perf-profile.children.cycles-pp.tmigr_requires_handle_remote
0.14 ± 2% -0.0 0.12 ± 3% perf-profile.children.cycles-pp.kmem_cache_free
0.07 ± 7% -0.0 0.05 perf-profile.children.cycles-pp.kthread
0.07 ± 7% -0.0 0.05 perf-profile.children.cycles-pp.ret_from_fork
0.07 ± 7% -0.0 0.05 perf-profile.children.cycles-pp.ret_from_fork_asm
0.10 ± 7% -0.0 0.08 ± 4% perf-profile.children.cycles-pp.update_cfs_group
0.06 -0.0 0.05 perf-profile.children.cycles-pp.__slab_free
0.05 +0.0 0.07 ± 5% perf-profile.children.cycles-pp.commit_merge
0.06 ± 9% +0.0 0.08 ± 4% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.06 ± 6% +0.0 0.09 ± 4% perf-profile.children.cycles-pp.vma_expand
0.08 ± 4% +0.0 0.11 ± 5% perf-profile.children.cycles-pp.up_write
0.06 ± 6% +0.0 0.09 ± 4% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.05 ± 7% +0.0 0.08 ± 5% perf-profile.children.cycles-pp.anon_vma_clone
0.07 ± 5% +0.0 0.11 ± 4% perf-profile.children.cycles-pp.vma_merge_new_range
0.06 ± 9% +0.0 0.09 perf-profile.children.cycles-pp.kmem_cache_alloc_noprof
0.08 ± 5% +0.0 0.12 ± 3% perf-profile.children.cycles-pp.vms_clear_ptes
0.00 +0.1 0.05 perf-profile.children.cycles-pp.unlink_anon_vmas
0.00 +0.1 0.05 ± 7% perf-profile.children.cycles-pp.entry_SYSCALL_64
0.11 ± 4% +0.1 0.17 ± 2% perf-profile.children.cycles-pp.do_brk_flags
0.00 +0.1 0.06 ± 6% perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
0.00 +0.1 0.06 ± 6% perf-profile.children.cycles-pp.free_pgtables
0.00 +0.1 0.06 perf-profile.children.cycles-pp.vm_area_dup
0.17 ± 2% +0.1 0.23 ± 2% perf-profile.children.cycles-pp.vms_complete_munmap_vmas
0.00 +0.1 0.07 ± 7% perf-profile.children.cycles-pp.mas_wr_node_store
0.00 +0.1 0.12 ± 3% perf-profile.children.cycles-pp.poll_idle
0.46 ± 4% +0.1 0.60 ± 3% perf-profile.children.cycles-pp.intel_idle
97.85 +0.2 98.02 perf-profile.children.cycles-pp.__do_sys_brk
97.90 +0.2 98.08 perf-profile.children.cycles-pp.do_syscall_64
96.68 +0.2 96.86 perf-profile.children.cycles-pp.rwsem_optimistic_spin
97.94 +0.2 98.12 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
96.79 +0.2 96.99 perf-profile.children.cycles-pp.rwsem_down_write_slowpath
96.82 +0.2 97.04 perf-profile.children.cycles-pp.down_write_killable
95.71 +0.2 95.94 perf-profile.children.cycles-pp.osq_lock
98.06 +0.3 98.32 perf-profile.children.cycles-pp.brk
0.54 ± 4% -0.4 0.15 ± 3% perf-profile.self.cycles-pp.intel_idle_irq
0.82 -0.1 0.71 perf-profile.self.cycles-pp.rwsem_spin_on_owner
0.63 ± 4% -0.1 0.55 ± 4% perf-profile.self.cycles-pp.intel_idle_ibrs
0.08 ± 4% -0.0 0.06 ± 11% perf-profile.self.cycles-pp.get_jiffies_update
0.10 ± 7% -0.0 0.08 ± 4% perf-profile.self.cycles-pp.update_cfs_group
0.06 -0.0 0.05 perf-profile.self.cycles-pp.ktime_get_update_offsets_now
0.06 ± 9% +0.0 0.08 ± 4% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.06 +0.0 0.09 ± 6% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.00 +0.1 0.05 perf-profile.self.cycles-pp.entry_SYSCALL_64
0.00 +0.1 0.05 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.13 ± 3% +0.1 0.18 ± 2% perf-profile.self.cycles-pp.rwsem_optimistic_spin
0.00 +0.1 0.06 ± 6% perf-profile.self.cycles-pp.up_write
0.00 +0.1 0.12 ± 4% perf-profile.self.cycles-pp.poll_idle
0.46 ± 4% +0.1 0.60 ± 3% perf-profile.self.cycles-pp.intel_idle
95.11 +0.3 95.44 perf-profile.self.cycles-pp.osq_lock
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
