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X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Sep 2025 05:36:49.8228 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: FQ4x6bWjbYPkmlpdEzwRFpc/0Oke6V8xJkiF5bL81UC6fpnakmx+Ru6jKlMccwx05EvSqOkiWHG0Ex4/YQoHQw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR11MB8679 X-OriginatorOrg: intel.com Hello, kernel test robot noticed a 4.0% improvement of vm-scalability.throughput on: commit: 849d5cff4d48be9146c2bf3c492fc7f434b5ffaa ("/dev/zero: try to align PMD_SIZE for private mapping") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master testcase: vm-scalability config: x86_64-rhel-9.4 compiler: gcc-14 test machine: 224 threads 4 sockets Intel(R) Xeon(R) Platinum 8380H CPU @ 2.90GHz (Cooper Lake) with 192G memory parameters: runtime: 300s size: 8T test: anon-w-seq-mt cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250928/202509281337.d1edd7ab-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/kconfig/rootfs/runtime/size/tbox_group/test/testcase: gcc-14/performance/x86_64-rhel-9.4/debian-13-x86_64-20250902.cgz/300s/8T/lkp-cpl-4sp2/anon-w-seq-mt/vm-scalability commit: 337135e612 ("mm: memory-tiering: fix PGPROMOTE_CANDIDATE counting") 849d5cff4d ("/dev/zero: try to align PMD_SIZE for private mapping") 337135e6124b6d37 849d5cff4d48be9146c2bf3c492 ---------------- --------------------------- %stddev %change %stddev \ | \ 26257 +27.2% 33395 uptime.idle 1.655e+10 +44.1% 2.385e+10 cpuidle..time 18164696 +40.9% 25599251 cpuidle..usage 24.01 ± 2% +10.7 34.74 mpstat.cpu.all.idle% 0.01 ± 18% -0.0 0.01 ± 42% mpstat.cpu.all.iowait% 34.04 -4.6 29.41 mpstat.cpu.all.sys% 39.34 -5.9 33.45 mpstat.cpu.all.usr% 9993182 ± 18% -41.8% 5815149 ± 5% numa-numastat.node0.local_node 10067051 ± 18% -41.5% 5889995 ± 5% numa-numastat.node0.numa_hit 10411741 ± 19% -43.9% 5835928 ± 3% numa-numastat.node1.local_node 10498702 ± 19% -43.6% 5917927 ± 3% numa-numastat.node1.numa_hit 9969246 ± 11% -40.7% 5915645 ± 5% numa-numastat.node2.local_node 10059661 ± 11% -40.3% 6009851 ± 4% numa-numastat.node2.numa_hit 9150835 ± 8% -36.6% 5799588 ± 4% numa-numastat.node3.local_node 9247258 ± 8% -36.2% 5896057 ± 4% numa-numastat.node3.numa_hit 1.50 ± 25% -54.8% 0.68 ± 64% perf-sched.sch_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown] 1.50 ± 25% -54.8% 0.68 ± 64% perf-sched.total_sch_delay.average.ms 69.56 ± 10% +34.3% 93.42 ± 7% perf-sched.total_wait_and_delay.average.ms 35646 ± 13% -31.8% 24313 ± 7% perf-sched.total_wait_and_delay.count.ms 68.06 ± 10% +36.3% 92.74 ± 8% perf-sched.total_wait_time.average.ms 69.56 ± 10% +34.3% 93.42 ± 7% perf-sched.wait_and_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown] 35646 ± 13% -31.8% 24313 ± 7% perf-sched.wait_and_delay.count.[unknown].[unknown].[unknown].[unknown].[unknown] 68.06 ± 10% +36.3% 92.74 ± 8% perf-sched.wait_time.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown] 2882 -13.9% 2480 turbostat.Avg_MHz 76.02 -10.6 65.45 turbostat.Busy% 24.31 ± 2% +10.7 35.06 turbostat.C1% 23.98 ± 2% +44.1% 34.55 turbostat.CPU%c1 0.16 +12.5% 0.18 turbostat.IPC 4332164 ± 2% -13.0% 3766894 ± 2% turbostat.NMI 835.40 -4.6% 796.86 turbostat.PkgWatt 42.68 -4.0% 40.99 turbostat.RAMWatt 41564180 -14.0% 35736390 meminfo.Active 41564164 -14.0% 35736374 meminfo.Active(anon) 40272237 -13.9% 34694186 meminfo.AnonHugePages 40974856 -14.2% 35170235 meminfo.AnonPages 85486107 -13.4% 73993462 meminfo.Committed_AS 107210 ± 3% -10.6% 95800 ± 2% meminfo.Mapped 53937539 -9.4% 48865764 meminfo.Memused 86016 -15.3% 72857 meminfo.PageTables 520391 ± 2% -10.5% 465924 ± 2% meminfo.Shmem 91818032 -10.0% 82610731 ± 2% meminfo.max_used_kB 24674489 ± 7% -30.5% 17148972 ± 11% sched_debug.cfs_rq:/.avg_vruntime.avg 26875075 ± 8% -28.3% 19262624 ± 10% sched_debug.cfs_rq:/.avg_vruntime.max 21346887 ± 9% -32.7% 14374999 ± 12% sched_debug.cfs_rq:/.avg_vruntime.min 24674491 ± 7% -30.5% 17148973 ± 11% sched_debug.cfs_rq:/.min_vruntime.avg 26875075 ± 8% -28.3% 19262624 ± 10% sched_debug.cfs_rq:/.min_vruntime.max 21346887 ± 9% -32.7% 14374999 ± 12% sched_debug.cfs_rq:/.min_vruntime.min 119986 ± 49% +171.7% 326012 ± 28% sched_debug.cpu.avg_idle.min 534962 ± 6% -30.0% 374477 ± 5% sched_debug.cpu.avg_idle.stddev 23399 ± 12% -21.7% 18326 ± 17% sched_debug.cpu.curr->pid.avg -46.12 +74.2% -80.32 sched_debug.cpu.nr_uninterruptible.min 22259 ± 7% -13.8% 19190 ± 9% numa-meminfo.node0.PageTables 10527574 ± 8% -18.3% 8597626 ± 6% numa-meminfo.node1.Active 10527573 ± 8% -18.3% 8597622 ± 6% numa-meminfo.node1.Active(anon) 10308896 ± 8% -18.4% 8415882 ± 6% numa-meminfo.node1.AnonHugePages 10425153 ± 8% -18.5% 8495895 ± 6% numa-meminfo.node1.AnonPages 21597 ± 8% -18.6% 17586 ± 6% numa-meminfo.node1.PageTables 10243708 ± 4% -14.8% 8723183 ± 8% numa-meminfo.node3.Active 10243705 ± 4% -14.8% 8723181 ± 8% numa-meminfo.node3.Active(anon) 9679927 ± 4% -14.3% 8300148 ± 8% numa-meminfo.node3.AnonHugePages 9856097 ± 4% -14.9% 8383987 ± 9% numa-meminfo.node3.AnonPages 20743 ± 6% -17.0% 17207 ± 8% numa-meminfo.node3.PageTables 365018 ± 6% -14.5% 312256 ± 11% numa-meminfo.node3.Shmem 0.08 +8.5% 0.08 vm-scalability.free_time 350533 -1.8% 344223 vm-scalability.median 6.76 ± 7% +1.0 7.73 ± 5% vm-scalability.stddev% 83567389 +4.0% 86902230 vm-scalability.throughput 834014 ± 3% -63.2% 306812 vm-scalability.time.involuntary_context_switches 90255412 -10.9% 80393120 ± 3% vm-scalability.time.maximum_resident_set_size 29416548 -53.8% 13599393 vm-scalability.time.minor_page_faults 16282 -14.5% 13923 vm-scalability.time.percent_of_cpu_this_job_got 22682 -13.9% 19518 vm-scalability.time.system_time 26489 -15.0% 22518 vm-scalability.time.user_time 282466 -2.2% 276340 vm-scalability.time.voluntary_context_switches 1.983e+10 -3.8% 1.907e+10 vm-scalability.workload 5523 ± 7% -14.0% 4750 ± 9% numa-vmstat.node0.nr_page_table_pages 10065144 ± 18% -41.5% 5891437 ± 5% numa-vmstat.node0.numa_hit 9991275 ± 18% -41.8% 5816591 ± 5% numa-vmstat.node0.numa_local 2637715 ± 8% -17.7% 2170883 ± 6% numa-vmstat.node1.nr_active_anon 2611881 ± 8% -17.9% 2144613 ± 6% numa-vmstat.node1.nr_anon_pages 5044 ± 8% -17.7% 4149 ± 6% numa-vmstat.node1.nr_anon_transparent_hugepages 5386 ± 8% -17.9% 4420 ± 5% numa-vmstat.node1.nr_page_table_pages 2635825 ± 8% -17.7% 2169762 ± 6% numa-vmstat.node1.nr_zone_active_anon 10498075 ± 19% -43.6% 5917099 ± 3% numa-vmstat.node1.numa_hit 10411114 ± 19% -44.0% 5835100 ± 3% numa-vmstat.node1.numa_local 10055965 ± 11% -40.2% 6009627 ± 4% numa-vmstat.node2.numa_hit 9965551 ± 11% -40.6% 5915421 ± 5% numa-vmstat.node2.numa_local 2591872 ± 4% -15.4% 2192261 ± 9% numa-vmstat.node3.nr_active_anon 2495697 ± 4% -15.5% 2107722 ± 9% numa-vmstat.node3.nr_anon_pages 4788 ± 4% -14.9% 4075 ± 9% numa-vmstat.node3.nr_anon_transparent_hugepages 5184 ± 5% -16.7% 4320 ± 9% numa-vmstat.node3.nr_page_table_pages 91128 ± 6% -14.3% 78122 ± 11% numa-vmstat.node3.nr_shmem 2589695 ± 4% -15.4% 2191057 ± 9% numa-vmstat.node3.nr_zone_active_anon 9245976 ± 8% -36.2% 5895181 ± 4% numa-vmstat.node3.numa_hit 9149554 ± 8% -36.6% 5798712 ± 4% numa-vmstat.node3.numa_local 10404886 -14.1% 8933816 proc-vmstat.nr_active_anon 10256454 -14.3% 8792592 proc-vmstat.nr_anon_pages 19688 -14.0% 16940 proc-vmstat.nr_anon_transparent_hugepages 3539789 +3.6% 3668211 proc-vmstat.nr_dirty_background_threshold 7088233 +3.6% 7345391 proc-vmstat.nr_dirty_threshold 1036780 -1.3% 1023061 proc-vmstat.nr_file_pages 35651440 +3.6% 36925397 proc-vmstat.nr_free_pages 35387145 +3.7% 36698529 proc-vmstat.nr_free_pages_blocks 27022 ± 3% -10.4% 24203 proc-vmstat.nr_mapped 21520 -15.1% 18262 proc-vmstat.nr_page_table_pages 130154 ± 2% -10.5% 116430 ± 2% proc-vmstat.nr_shmem 10404867 -14.1% 8933804 proc-vmstat.nr_zone_active_anon 39880029 -40.5% 23722220 proc-vmstat.numa_hit 17240 ± 3% -38.6% 10591 ± 3% proc-vmstat.numa_huge_pte_updates 39532388 -40.9% 23374683 proc-vmstat.numa_local 8959515 ± 3% -38.3% 5528550 ± 2% proc-vmstat.numa_pte_updates 4.418e+09 -3.8% 4.25e+09 proc-vmstat.pgalloc_normal 30619908 -51.7% 14801549 proc-vmstat.pgfault 4.418e+09 -3.8% 4.25e+09 proc-vmstat.pgfree 8566630 -3.5% 8268960 proc-vmstat.thp_fault_alloc 17393 +14.0% 19837 proc-vmstat.unevictable_pgs_culled 3.66 -5.0% 3.48 perf-stat.i.MPKI 7.052e+10 -4.1% 6.762e+10 perf-stat.i.branch-instructions 72.05 -3.8 68.21 perf-stat.i.cache-miss-rate% 8.114e+08 -9.0% 7.386e+08 perf-stat.i.cache-misses 1.122e+09 -3.7% 1.08e+09 perf-stat.i.cache-references 9741 -14.1% 8368 perf-stat.i.context-switches 2.98 -10.9% 2.65 perf-stat.i.cpi 6.62e+11 -14.7% 5.646e+11 perf-stat.i.cpu-cycles 813.26 -6.2% 762.62 perf-stat.i.cycles-between-cache-misses 2.209e+11 -4.1% 2.118e+11 perf-stat.i.instructions 0.34 +12.3% 0.38 perf-stat.i.ipc 103638 -51.9% 49830 perf-stat.i.minor-faults 103640 -51.9% 49833 perf-stat.i.page-faults 3.67 -4.8% 3.49 perf-stat.overall.MPKI 0.02 +0.0 0.02 perf-stat.overall.branch-miss-rate% 72.21 -3.7 68.49 perf-stat.overall.cache-miss-rate% 2.99 -10.6% 2.67 perf-stat.overall.cpi 813.80 -6.0% 764.59 perf-stat.overall.cycles-between-cache-misses 0.33 +11.8% 0.37 perf-stat.overall.ipc 6.797e+10 -3.9% 6.532e+10 perf-stat.ps.branch-instructions 7.811e+08 -8.5% 7.146e+08 perf-stat.ps.cache-misses 1.082e+09 -3.6% 1.043e+09 perf-stat.ps.cache-references 9507 -14.6% 8121 perf-stat.ps.context-switches 6.357e+11 -14.0% 5.464e+11 perf-stat.ps.cpu-cycles 2.129e+11 -3.9% 2.046e+11 perf-stat.ps.instructions 100387 -51.9% 48314 perf-stat.ps.minor-faults 100387 -51.9% 48314 perf-stat.ps.page-faults 6.452e+13 -4.1% 6.19e+13 perf-stat.total.instructions 71.91 -2.3 69.61 perf-profile.calltrace.cycles-pp.do_access 44.42 -0.7 43.70 perf-profile.calltrace.cycles-pp.asm_exc_page_fault.do_access 44.22 -0.7 43.52 perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.do_access 44.38 -0.7 43.67 perf-profile.calltrace.cycles-pp.exc_page_fault.asm_exc_page_fault.do_access 44.38 -0.7 43.67 perf-profile.calltrace.cycles-pp.do_user_addr_fault.exc_page_fault.asm_exc_page_fault.do_access 44.15 -0.7 43.46 perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault 43.91 -0.6 43.35 perf-profile.calltrace.cycles-pp.__do_huge_pmd_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault 43.32 -0.5 42.77 perf-profile.calltrace.cycles-pp.vma_alloc_anon_folio_pmd.__do_huge_pmd_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault 39.76 -0.5 39.25 perf-profile.calltrace.cycles-pp.clear_page_erms.folio_zero_user.vma_alloc_anon_folio_pmd.__do_huge_pmd_anonymous_page.__handle_mm_fault 41.64 -0.5 41.17 perf-profile.calltrace.cycles-pp.folio_zero_user.vma_alloc_anon_folio_pmd.__do_huge_pmd_anonymous_page.__handle_mm_fault.handle_mm_fault 0.80 -0.0 0.78 perf-profile.calltrace.cycles-pp.vma_alloc_folio_noprof.vma_alloc_anon_folio_pmd.__do_huge_pmd_anonymous_page.__handle_mm_fault.handle_mm_fault 0.72 -0.0 0.70 perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_frozen_pages_noprof.alloc_pages_mpol.vma_alloc_folio_noprof.vma_alloc_anon_folio_pmd 0.77 +0.0 0.80 perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.clear_page_erms.folio_zero_user.vma_alloc_anon_folio_pmd.__do_huge_pmd_anonymous_page 0.56 +0.0 0.58 ± 2% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.clear_page_erms.folio_zero_user.vma_alloc_anon_folio_pmd 0.52 +0.0 0.55 ± 2% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.clear_page_erms.folio_zero_user 0.52 +0.0 0.55 ± 2% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.clear_page_erms 0.27 ±100% +0.4 0.65 ± 5% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork.ret_from_fork_asm 0.27 ±100% +0.4 0.65 ± 5% perf-profile.calltrace.cycles-pp.ret_from_fork.ret_from_fork_asm 0.27 ±100% +0.4 0.65 ± 5% perf-profile.calltrace.cycles-pp.ret_from_fork_asm 0.09 ±223% +0.5 0.58 ± 6% perf-profile.calltrace.cycles-pp.commit_tail.drm_atomic_helper_commit.drm_atomic_commit.drm_atomic_helper_dirtyfb.drm_fbdev_shmem_helper_fb_dirty 0.09 ±223% +0.5 0.58 ± 6% perf-profile.calltrace.cycles-pp.drm_atomic_commit.drm_atomic_helper_dirtyfb.drm_fbdev_shmem_helper_fb_dirty.drm_fb_helper_damage_work.process_one_work 0.09 ±223% +0.5 0.58 ± 6% perf-profile.calltrace.cycles-pp.drm_atomic_helper_commit.drm_atomic_commit.drm_atomic_helper_dirtyfb.drm_fbdev_shmem_helper_fb_dirty.drm_fb_helper_damage_work 0.09 ±223% +0.5 0.58 ± 6% perf-profile.calltrace.cycles-pp.ast_mode_config_helper_atomic_commit_tail.commit_tail.drm_atomic_helper_commit.drm_atomic_commit.drm_atomic_helper_dirtyfb 0.09 ±223% +0.5 0.58 ± 6% perf-profile.calltrace.cycles-pp.drm_atomic_helper_commit_tail.ast_mode_config_helper_atomic_commit_tail.commit_tail.drm_atomic_helper_commit.drm_atomic_commit 0.09 ±223% +0.5 0.59 ± 6% perf-profile.calltrace.cycles-pp.drm_atomic_helper_dirtyfb.drm_fbdev_shmem_helper_fb_dirty.drm_fb_helper_damage_work.process_one_work.worker_thread 0.09 ±223% +0.5 0.59 ± 6% perf-profile.calltrace.cycles-pp.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread.ret_from_fork 0.09 ±223% +0.5 0.59 ± 6% perf-profile.calltrace.cycles-pp.drm_fbdev_shmem_helper_fb_dirty.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread 0.09 ±223% +0.5 0.62 ± 6% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork.ret_from_fork_asm 0.10 ±223% +0.5 0.62 ± 6% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork.ret_from_fork_asm 1.59 ± 23% +1.8 3.37 ± 8% perf-profile.calltrace.cycles-pp.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 1.59 ± 23% +1.8 3.36 ± 8% perf-profile.calltrace.cycles-pp.acpi_safe_halt.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter 1.59 ± 23% +1.8 3.37 ± 8% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary 1.59 ± 23% +1.8 3.37 ± 8% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry 1.59 ± 23% +1.8 3.37 ± 8% perf-profile.calltrace.cycles-pp.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call 1.62 ± 23% +1.8 3.42 ± 8% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.common_startup_64 1.62 ± 23% +1.8 3.43 ± 8% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.common_startup_64 1.62 ± 23% +1.8 3.43 ± 8% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.common_startup_64 1.62 ± 23% +1.8 3.43 ± 8% perf-profile.calltrace.cycles-pp.start_secondary.common_startup_64 1.63 ± 23% +1.8 3.45 ± 8% perf-profile.calltrace.cycles-pp.common_startup_64 2.93 ± 24% +3.4 6.36 ± 8% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.pv_native_safe_halt.acpi_safe_halt.acpi_idle_do_entry.acpi_idle_enter 64.19 -1.5 62.66 perf-profile.children.cycles-pp.do_access 42.58 -0.8 41.75 perf-profile.children.cycles-pp.do_rw_once 44.46 -0.7 43.74 perf-profile.children.cycles-pp.asm_exc_page_fault 44.40 -0.7 43.69 perf-profile.children.cycles-pp.exc_page_fault 44.40 -0.7 43.69 perf-profile.children.cycles-pp.do_user_addr_fault 44.24 -0.7 43.54 perf-profile.children.cycles-pp.handle_mm_fault 44.17 -0.7 43.47 perf-profile.children.cycles-pp.__handle_mm_fault 40.18 -0.6 39.62 perf-profile.children.cycles-pp.clear_page_erms 43.91 -0.6 43.35 perf-profile.children.cycles-pp.__do_huge_pmd_anonymous_page 43.32 -0.5 42.78 perf-profile.children.cycles-pp.vma_alloc_anon_folio_pmd 42.40 -0.5 41.88 perf-profile.children.cycles-pp.folio_zero_user 0.18 ± 3% -0.2 0.02 ± 99% perf-profile.children.cycles-pp.do_anonymous_page 1.06 -0.1 0.97 perf-profile.children.cycles-pp.__alloc_frozen_pages_noprof 1.07 -0.1 0.98 perf-profile.children.cycles-pp.alloc_pages_mpol 0.91 -0.1 0.82 perf-profile.children.cycles-pp.get_page_from_freelist 0.88 -0.1 0.80 perf-profile.children.cycles-pp.vma_alloc_folio_noprof 0.71 -0.1 0.64 perf-profile.children.cycles-pp.prep_new_page 0.16 ± 3% -0.0 0.11 perf-profile.children.cycles-pp.__mem_cgroup_charge 0.11 ± 4% -0.0 0.07 ± 6% perf-profile.children.cycles-pp.charge_memcg 0.15 ± 2% -0.0 0.12 ± 3% perf-profile.children.cycles-pp.native_irq_return_iret 0.11 ± 3% -0.0 0.08 ± 7% perf-profile.children.cycles-pp.try_charge_memcg 0.17 ± 3% -0.0 0.14 ± 3% perf-profile.children.cycles-pp.rmqueue_pcplist 0.17 ± 3% -0.0 0.15 perf-profile.children.cycles-pp.rmqueue 0.13 ± 4% -0.0 0.11 perf-profile.children.cycles-pp.__rmqueue_pcplist 0.08 ± 8% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.rmqueue_bulk 0.08 ± 6% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 0.13 -0.0 0.12 perf-profile.children.cycles-pp.folio_add_lru 0.12 -0.0 0.11 perf-profile.children.cycles-pp.folio_batch_move_lru 0.08 -0.0 0.07 perf-profile.children.cycles-pp.lru_add 0.06 ± 11% +0.0 0.08 ± 8% perf-profile.children.cycles-pp.asm_sysvec_call_function 0.06 ± 11% +0.0 0.08 ± 8% perf-profile.children.cycles-pp.schedule 0.36 +0.0 0.38 perf-profile.children.cycles-pp.task_tick_fair 0.58 +0.0 0.60 perf-profile.children.cycles-pp.sched_tick 0.06 ± 11% +0.0 0.09 ± 8% perf-profile.children.cycles-pp.sched_balance_rq 0.03 ± 70% +0.0 0.07 ± 11% perf-profile.children.cycles-pp.pick_next_task_fair 0.04 ± 71% +0.0 0.07 ± 12% perf-profile.children.cycles-pp.__pick_next_task 0.02 ± 99% +0.0 0.07 ± 10% perf-profile.children.cycles-pp.sched_balance_find_src_group 0.02 ±141% +0.1 0.07 ± 11% perf-profile.children.cycles-pp.update_sd_lb_stats 0.01 ±223% +0.1 0.06 ± 9% perf-profile.children.cycles-pp.update_sg_lb_stats 0.01 ±223% +0.1 0.06 ± 11% perf-profile.children.cycles-pp.sched_balance_newidle 0.91 +0.1 0.97 ± 2% perf-profile.children.cycles-pp.update_process_times 0.16 ± 14% +0.1 0.22 ± 10% perf-profile.children.cycles-pp.wait_for_lsr 0.18 ± 14% +0.1 0.24 ± 12% perf-profile.children.cycles-pp.serial8250_console_write 0.16 ± 14% +0.1 0.23 ± 4% perf-profile.children.cycles-pp.free_unref_folios 0.29 ± 11% +0.1 0.36 ± 9% perf-profile.children.cycles-pp.vprintk_emit 0.28 ± 11% +0.1 0.36 ± 8% perf-profile.children.cycles-pp.devkmsg_emit 0.18 ± 12% +0.1 0.25 ± 5% perf-profile.children.cycles-pp.folios_put_refs 0.18 ± 14% +0.1 0.25 ± 5% perf-profile.children.cycles-pp.__tlb_batch_free_encoded_pages 0.18 ± 14% +0.1 0.25 ± 5% perf-profile.children.cycles-pp.free_pages_and_swap_cache 0.28 ± 11% +0.1 0.36 ± 9% perf-profile.children.cycles-pp.console_flush_all 0.28 ± 11% +0.1 0.36 ± 9% perf-profile.children.cycles-pp.console_unlock 0.28 ± 11% +0.1 0.36 ± 9% perf-profile.children.cycles-pp.devkmsg_write.cold 0.21 ± 13% +0.1 0.28 ± 4% perf-profile.children.cycles-pp.vms_complete_munmap_vmas 0.21 ± 13% +0.1 0.28 ± 4% perf-profile.children.cycles-pp.do_vmi_align_munmap 0.21 ± 13% +0.1 0.28 ± 4% perf-profile.children.cycles-pp.do_vmi_munmap 0.20 ± 12% +0.1 0.28 ± 4% perf-profile.children.cycles-pp.vms_clear_ptes 0.19 ± 12% +0.1 0.27 ± 5% perf-profile.children.cycles-pp.tlb_finish_mmu 0.21 ± 11% +0.1 0.29 ± 4% perf-profile.children.cycles-pp.__munmap 0.21 ± 11% +0.1 0.29 ± 4% perf-profile.children.cycles-pp.__vm_munmap 0.21 ± 11% +0.1 0.29 ± 4% perf-profile.children.cycles-pp.__x64_sys_munmap 0.48 ± 9% +0.1 0.62 ± 6% perf-profile.children.cycles-pp.process_one_work 0.49 ± 10% +0.1 0.62 ± 6% perf-profile.children.cycles-pp.worker_thread 0.44 ± 11% +0.1 0.58 ± 6% perf-profile.children.cycles-pp.drm_atomic_commit 0.44 ± 11% +0.1 0.58 ± 6% perf-profile.children.cycles-pp.drm_atomic_helper_commit 0.44 ± 11% +0.1 0.58 ± 7% perf-profile.children.cycles-pp.ast_primary_plane_helper_atomic_update 0.44 ± 11% +0.1 0.58 ± 7% perf-profile.children.cycles-pp.drm_fb_memcpy 0.44 ± 11% +0.1 0.58 ± 7% perf-profile.children.cycles-pp.memcpy_toio 0.44 ± 11% +0.1 0.59 ± 6% perf-profile.children.cycles-pp.drm_atomic_helper_dirtyfb 0.44 ± 11% +0.1 0.59 ± 6% perf-profile.children.cycles-pp.drm_fb_helper_damage_work 0.44 ± 11% +0.1 0.59 ± 6% perf-profile.children.cycles-pp.drm_fbdev_shmem_helper_fb_dirty 0.44 ± 11% +0.1 0.58 ± 6% perf-profile.children.cycles-pp.commit_tail 0.44 ± 11% +0.1 0.58 ± 6% perf-profile.children.cycles-pp.ast_mode_config_helper_atomic_commit_tail 0.44 ± 11% +0.1 0.58 ± 6% perf-profile.children.cycles-pp.drm_atomic_helper_commit_tail 0.50 ± 9% +0.1 0.65 ± 5% perf-profile.children.cycles-pp.kthread 0.50 ± 9% +0.1 0.65 ± 5% perf-profile.children.cycles-pp.ret_from_fork 0.50 ± 9% +0.1 0.65 ± 5% perf-profile.children.cycles-pp.ret_from_fork_asm 3.52 ± 10% +1.8 5.28 ± 5% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt 1.60 ± 23% +1.8 3.38 ± 8% perf-profile.children.cycles-pp.pv_native_safe_halt 1.60 ± 23% +1.8 3.39 ± 8% perf-profile.children.cycles-pp.acpi_idle_do_entry 1.60 ± 23% +1.8 3.39 ± 8% perf-profile.children.cycles-pp.acpi_safe_halt 1.60 ± 23% +1.8 3.39 ± 8% perf-profile.children.cycles-pp.cpuidle_enter_state 1.60 ± 23% +1.8 3.39 ± 8% perf-profile.children.cycles-pp.acpi_idle_enter 1.60 ± 23% +1.8 3.40 ± 8% perf-profile.children.cycles-pp.cpuidle_enter 1.62 ± 23% +1.8 3.43 ± 8% perf-profile.children.cycles-pp.start_secondary 1.62 ± 23% +1.8 3.44 ± 8% perf-profile.children.cycles-pp.cpuidle_idle_call 1.63 ± 23% +1.8 3.45 ± 8% perf-profile.children.cycles-pp.do_idle 1.63 ± 23% +1.8 3.45 ± 8% perf-profile.children.cycles-pp.common_startup_64 1.63 ± 23% +1.8 3.45 ± 8% perf-profile.children.cycles-pp.cpu_startup_entry 40.75 -1.1 39.66 perf-profile.self.cycles-pp.do_rw_once 39.20 -0.6 38.63 perf-profile.self.cycles-pp.clear_page_erms 10.50 -0.3 10.24 perf-profile.self.cycles-pp.do_access 0.98 -0.1 0.92 perf-profile.self.cycles-pp.folio_zero_user 0.15 ± 2% -0.0 0.12 ± 3% perf-profile.self.cycles-pp.native_irq_return_iret 0.00 +0.1 0.05 ± 8% perf-profile.self.cycles-pp.update_sg_lb_stats 0.14 ± 13% +0.1 0.21 ± 4% perf-profile.self.cycles-pp.free_unref_folios 0.43 ± 12% +0.1 0.57 ± 6% perf-profile.self.cycles-pp.memcpy_toio 1.47 ± 24% +1.7 3.19 ± 8% perf-profile.self.cycles-pp.pv_native_safe_halt 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