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LV3PR11MB8603.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Nov 2023 01:44:53.3128 (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: zgAAlELSmvbPJijbMY26Dola0rLrLsKrGdlUrls5TNDUyaG/I696DB8WiRg717bbt5gRlKlkZA5Y7JNMhDF63A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA3PR11MB8023 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, kernel test robot noticed a -46.2% improvement of autonuma-benchmark.numa01_THREAD_ALLOC.seconds on: commit: 84db47ca7146d7bd00eb5cf2b93989a971c84650 ("sched/numa: Fix mm numa_scan_seq based unconditional scan") https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git sched/core testcase: autonuma-benchmark test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory parameters: iterations: 4x test: numa01_THREAD_ALLOC cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20231123/202311231611.59bca875-oliver.sang@intel.com ========================================================================================= compiler/cpufreq_governor/iterations/kconfig/rootfs/tbox_group/test/testcase: gcc-12/performance/4x/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-spr-r02/numa01_THREAD_ALLOC/autonuma-benchmark commit: d6111cf45c ("sched: Use WRITE_ONCE() for p->on_rq") 84db47ca71 ("sched/numa: Fix mm numa_scan_seq based unconditional scan") d6111cf45c578728 84db47ca7146d7bd00eb5cf2b93 ---------------- --------------------------- %stddev %change %stddev \ | \ 1424 -21.6% 1117 ± 2% uptime.boot 0.02 ± 38% +139.7% 0.05 ± 20% vmstat.procs.b 0.01 ± 15% +0.0 0.01 ± 9% mpstat.cpu.all.iowait% 0.09 ± 2% -0.0 0.07 ± 2% mpstat.cpu.all.soft% 1.84 +0.4 2.24 ± 4% mpstat.cpu.all.sys% 9497 ± 17% +37.1% 13024 ± 10% turbostat.C1 3.161e+08 -20.8% 2.503e+08 ± 2% turbostat.IRQ 8.86 ± 8% -1.7 7.16 ± 14% turbostat.PKG_% 646.52 +2.9% 665.41 turbostat.PkgWatt 52.74 +32.6% 69.93 turbostat.RAMWatt 258.20 -16.3% 216.21 ± 2% autonuma-benchmark.numa01.seconds 78.26 -46.2% 42.10 ± 5% autonuma-benchmark.numa01_THREAD_ALLOC.seconds 1381 -22.6% 1069 ± 2% autonuma-benchmark.time.elapsed_time 1381 -22.6% 1069 ± 2% autonuma-benchmark.time.elapsed_time.max 1090459 ± 2% -23.1% 838693 ± 3% autonuma-benchmark.time.involuntary_context_switches 286141 -23.6% 218671 ± 2% autonuma-benchmark.time.user_time 0.00 ±223% +23983.3% 0.24 ±110% perf-sched.sch_delay.avg.ms.__cond_resched.folio_copy.migrate_folio_extra.move_to_new_folio.migrate_pages_batch 0.01 ±223% +1.3e+05% 15.11 ±179% perf-sched.sch_delay.max.ms.__cond_resched.folio_copy.migrate_folio_extra.move_to_new_folio.migrate_pages_batch 3.35 ± 31% -70.7% 0.98 ±149% perf-sched.wait_and_delay.avg.ms.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write 167.50 ± 32% -69.8% 50.67 ±102% perf-sched.wait_and_delay.count.__cond_resched.generic_perform_write.shmem_file_write_iter.vfs_write.ksys_write 8.50 ± 39% -80.4% 1.67 ±223% perf-sched.wait_and_delay.count.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm 1.22 ±134% +215.3% 3.83 ± 30% perf-sched.wait_time.avg.ms.__cond_resched.folio_copy.migrate_folio_extra.move_to_new_folio.migrate_pages_batch 1.60 ±136% +2231.7% 37.39 ±156% perf-sched.wait_time.max.ms.__cond_resched.folio_copy.migrate_folio_extra.move_to_new_folio.migrate_pages_batch 1578414 -1.4% 1556033 proc-vmstat.nr_anon_pages 74441 ± 14% +85.7% 138261 ± 6% proc-vmstat.numa_hint_faults 41582 ± 22% +91.1% 79461 ± 9% proc-vmstat.numa_hint_faults_local 34327 ± 6% +148.2% 85213 ± 2% proc-vmstat.numa_huge_pte_updates 5578006 -8.1% 5123719 ± 4% proc-vmstat.numa_local 4649420 ± 4% +126.1% 10511526 ± 3% proc-vmstat.numa_pages_migrated 17706681 ± 6% +147.2% 43778740 ± 2% proc-vmstat.numa_pte_updates 6749037 -10.7% 6027035 proc-vmstat.pgfault 4649420 ± 4% +126.1% 10511526 ± 3% proc-vmstat.pgmigrate_success 236153 -14.4% 202067 ± 3% proc-vmstat.pgreuse 9057 ± 4% +126.3% 20497 ± 3% proc-vmstat.thp_migration_success 30217875 ± 2% -20.4% 24043125 proc-vmstat.unevictable_pgs_scanned 10.73 ± 5% +125.3% 24.17 ± 17% perf-stat.i.MPKI 2.427e+08 +4.0% 2.523e+08 perf-stat.i.branch-instructions 24.45 +3.2 27.63 perf-stat.i.cache-miss-rate% 14364771 ± 5% +122.0% 31896201 ± 18% perf-stat.i.cache-misses 37679065 +70.9% 64408862 ± 10% perf-stat.i.cache-references 545.38 -2.9% 529.43 perf-stat.i.cpi 221.07 +7.7% 238.10 perf-stat.i.cpu-migrations 156883 ± 2% -36.8% 99195 perf-stat.i.cycles-between-cache-misses 3.331e+08 +3.3% 3.443e+08 perf-stat.i.dTLB-loads 1031040 +2.6% 1057642 perf-stat.i.dTLB-store-misses 1.877e+08 +3.5% 1.942e+08 perf-stat.i.dTLB-stores 1.24e+09 +3.7% 1.286e+09 perf-stat.i.instructions 0.00 ± 12% +54.1% 0.00 ± 39% perf-stat.i.ipc 2.07 +12.9% 2.33 ± 2% perf-stat.i.metric.M/sec 5074 ± 2% +12.7% 5718 perf-stat.i.minor-faults 43.56 ± 2% +4.0 47.59 ± 3% perf-stat.i.node-load-miss-rate% 519245 ± 3% +57.1% 815750 ± 3% perf-stat.i.node-load-misses 5074 ± 2% +12.7% 5718 perf-stat.i.page-faults 10.68 ± 4% +124.9% 24.01 ± 18% perf-stat.overall.MPKI 37.27 ± 5% +11.6 48.91 ± 7% perf-stat.overall.cache-miss-rate% 504.52 -5.1% 479.03 perf-stat.overall.cpi 47358 ± 4% -56.6% 20561 ± 17% perf-stat.overall.cycles-between-cache-misses 0.00 +5.4% 0.00 perf-stat.overall.ipc 42.32 ± 7% +8.3 50.63 ± 6% perf-stat.overall.node-load-miss-rate% 2.384e+08 +4.2% 2.486e+08 perf-stat.ps.branch-instructions 13020509 ± 5% +133.4% 30395642 ± 17% perf-stat.ps.cache-misses 34948633 ± 2% +76.6% 61721520 ± 9% perf-stat.ps.cache-references 218.01 +7.5% 234.41 perf-stat.ps.cpu-migrations 3.285e+08 +3.6% 3.402e+08 perf-stat.ps.dTLB-loads 1021092 +2.9% 1050584 perf-stat.ps.dTLB-store-misses 1.845e+08 +3.7% 1.914e+08 perf-stat.ps.dTLB-stores 1.219e+09 +3.9% 1.267e+09 perf-stat.ps.instructions 4707 +14.8% 5406 perf-stat.ps.minor-faults 502656 ± 3% +63.9% 823962 ± 4% perf-stat.ps.node-load-misses 4707 +14.8% 5406 perf-stat.ps.page-faults 1.686e+12 -19.1% 1.363e+12 ± 2% perf-stat.total.instructions 1.824e+08 ± 2% -27.1% 1.33e+08 ± 4% sched_debug.cfs_rq:/.avg_vruntime.avg 1.869e+08 ± 2% -26.9% 1.366e+08 ± 4% sched_debug.cfs_rq:/.avg_vruntime.max 1.498e+08 ± 6% -27.4% 1.087e+08 ± 6% sched_debug.cfs_rq:/.avg_vruntime.min 3892383 ± 9% -20.8% 3081639 ± 7% sched_debug.cfs_rq:/.avg_vruntime.stddev 0.81 ± 5% -11.7% 0.72 ± 6% sched_debug.cfs_rq:/.h_nr_running.min 4130 ± 3% +33.5% 5516 ± 14% sched_debug.cfs_rq:/.load_avg.max 1.824e+08 ± 2% -27.1% 1.33e+08 ± 4% sched_debug.cfs_rq:/.min_vruntime.avg 1.869e+08 ± 2% -26.9% 1.366e+08 ± 4% sched_debug.cfs_rq:/.min_vruntime.max 1.498e+08 ± 6% -27.4% 1.087e+08 ± 6% sched_debug.cfs_rq:/.min_vruntime.min 3892382 ± 9% -20.8% 3081638 ± 7% sched_debug.cfs_rq:/.min_vruntime.stddev 0.81 ± 5% -11.7% 0.72 ± 6% sched_debug.cfs_rq:/.nr_running.min 25.69 ± 11% +33.1% 34.20 ± 20% sched_debug.cfs_rq:/.removed.util_avg.max 804.13 ± 6% -13.2% 697.93 ± 5% sched_debug.cfs_rq:/.runnable_avg.min 642.08 ± 7% -18.7% 522.15 ± 5% sched_debug.cfs_rq:/.util_avg.min 30.15 ± 67% +1148.5% 376.47 ± 4% sched_debug.cfs_rq:/.util_est_enqueued.avg 490.48 ± 19% +140.0% 1177 ± 10% sched_debug.cfs_rq:/.util_est_enqueued.max 77.81 ± 47% +298.2% 309.83 ± 6% sched_debug.cfs_rq:/.util_est_enqueued.stddev 840536 ± 3% -29.6% 592026 ± 6% sched_debug.cpu.avg_idle.min 516622 ± 5% -16.1% 433228 ± 3% sched_debug.cpu.avg_idle.stddev 713848 ± 2% -24.3% 540516 ± 4% sched_debug.cpu.clock.avg 715060 ± 2% -24.3% 541264 ± 4% sched_debug.cpu.clock.max 712575 ± 2% -24.3% 539699 ± 4% sched_debug.cpu.clock.min 714.85 ± 8% -38.1% 442.30 ± 10% sched_debug.cpu.clock.stddev 705718 ± 2% -24.3% 534516 ± 4% sched_debug.cpu.clock_task.avg 708387 ± 2% -24.3% 536010 ± 4% sched_debug.cpu.clock_task.max 686460 ± 2% -24.5% 518080 ± 4% sched_debug.cpu.clock_task.min 2041 ± 12% -32.5% 1377 ± 7% sched_debug.cpu.clock_task.stddev 23332 ± 3% -20.1% 18646 ± 5% sched_debug.cpu.curr->pid.avg 26909 -15.7% 22694 ± 2% sched_debug.cpu.curr->pid.max 16993 ± 13% -33.7% 11263 ± 21% sched_debug.cpu.curr->pid.min 1393930 ± 3% -14.1% 1197373 ± 3% sched_debug.cpu.max_idle_balance_cost.max 154458 ± 5% -12.8% 134638 ± 3% sched_debug.cpu.max_idle_balance_cost.stddev 0.00 ± 7% -37.3% 0.00 ± 10% sched_debug.cpu.next_balance.stddev 0.82 ± 6% -12.6% 0.72 ± 9% sched_debug.cpu.nr_running.min 7472 ± 2% -19.9% 5982 ± 3% sched_debug.cpu.nr_switches.avg 2879 ± 6% -15.1% 2445 ± 7% sched_debug.cpu.nr_switches.min 5925 ± 5% -14.3% 5080 ± 4% sched_debug.cpu.nr_switches.stddev 6.07 ± 9% +39.6% 8.48 ± 8% sched_debug.cpu.nr_uninterruptible.stddev 712557 ± 2% -24.3% 539685 ± 4% sched_debug.cpu_clk 711344 ± 2% -24.3% 538474 ± 4% sched_debug.ktime 0.15 ± 78% +111.4% 0.31 ± 33% sched_debug.rt_rq:.rt_time.avg 32.86 ± 78% +111.4% 69.47 ± 33% sched_debug.rt_rq:.rt_time.max 2.19 ± 78% +111.4% 4.63 ± 33% sched_debug.rt_rq:.rt_time.stddev 713438 ± 2% -24.2% 540572 ± 4% sched_debug.sched_clk 3.34 ± 33% -1.5 1.81 ± 18% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt 1.45 ± 39% -1.1 0.36 ±101% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 1.45 ± 39% -1.1 0.36 ±101% perf-profile.calltrace.cycles-pp.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 1.37 ± 38% -1.0 0.34 ±101% perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt 3.04 ± 32% -1.4 1.60 ± 18% perf-profile.children.cycles-pp.exit_to_user_mode_prepare 2.78 ± 29% -1.3 1.44 ± 17% perf-profile.children.cycles-pp.exit_to_user_mode_loop 2.37 ± 28% -1.2 1.16 ± 23% perf-profile.children.cycles-pp.irqentry_exit_to_user_mode 1.95 ± 28% -1.0 0.97 ± 13% perf-profile.children.cycles-pp.task_mm_cid_work 2.17 ± 29% -1.0 1.19 ± 16% perf-profile.children.cycles-pp.task_work_run 0.69 ± 30% -0.3 0.38 ± 49% perf-profile.children.cycles-pp.khugepaged 0.67 ± 31% -0.3 0.37 ± 49% perf-profile.children.cycles-pp.khugepaged_scan_mm_slot 0.67 ± 31% -0.3 0.37 ± 49% perf-profile.children.cycles-pp.hpage_collapse_scan_pmd 0.38 ± 27% -0.1 0.26 ± 23% perf-profile.children.cycles-pp.security_file_permission 0.34 ± 27% -0.1 0.23 ± 23% perf-profile.children.cycles-pp.apparmor_file_permission 0.26 ± 48% -0.1 0.15 ± 19% perf-profile.children.cycles-pp.dup_task_struct 0.24 ± 35% -0.1 0.15 ± 17% perf-profile.children.cycles-pp.folio_batch_move_lru 0.11 ± 51% -0.1 0.04 ± 75% perf-profile.children.cycles-pp.__vmalloc_node_range 0.14 ± 33% -0.1 0.08 ± 14% perf-profile.children.cycles-pp.percpu_counter_add_batch 0.10 ± 32% -0.0 0.06 ± 19% perf-profile.children.cycles-pp.move_page_tables 0.02 ±142% +0.1 0.10 ± 29% perf-profile.children.cycles-pp.task_tick_fair 0.02 ±223% +0.1 0.13 ± 56% perf-profile.children.cycles-pp.__flush_smp_call_function_queue 0.04 ±113% +0.2 0.20 ± 48% perf-profile.children.cycles-pp.on_each_cpu_cond_mask 0.00 +0.2 0.16 ± 56% perf-profile.children.cycles-pp.perf_mux_hrtimer_handler 0.04 ±107% +0.2 0.25 ± 42% perf-profile.children.cycles-pp.scheduler_tick 0.18 ± 79% +0.2 0.38 ± 40% perf-profile.children.cycles-pp.__do_sys_wait4 0.18 ± 80% +0.2 0.38 ± 40% perf-profile.children.cycles-pp.kernel_wait4 0.17 ± 76% +0.2 0.38 ± 40% perf-profile.children.cycles-pp.do_wait 0.00 +0.3 0.26 ± 77% perf-profile.children.cycles-pp.intel_idle 0.06 ±104% +0.3 0.32 ± 44% perf-profile.children.cycles-pp.update_process_times 0.06 ±106% +0.3 0.33 ± 46% perf-profile.children.cycles-pp.tick_sched_handle 0.07 ± 81% +0.3 0.36 ± 48% perf-profile.children.cycles-pp.tick_nohz_highres_handler 0.18 ± 54% +0.4 0.62 ± 48% perf-profile.children.cycles-pp.__hrtimer_run_queues 0.21 ± 50% +0.6 0.76 ± 47% perf-profile.children.cycles-pp.hrtimer_interrupt 0.22 ± 51% +0.6 0.79 ± 46% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt 0.68 ± 44% +1.1 1.80 ± 60% perf-profile.children.cycles-pp.update_sg_lb_stats 1.46 ± 52% +1.2 2.62 ± 45% perf-profile.children.cycles-pp.__schedule 0.72 ± 46% +1.2 1.89 ± 60% perf-profile.children.cycles-pp.update_sd_lb_stats 0.72 ± 46% +1.2 1.89 ± 60% perf-profile.children.cycles-pp.find_busiest_group 0.03 ±141% +1.3 1.31 ± 75% perf-profile.children.cycles-pp.start_secondary 0.01 ±223% +1.3 1.36 ± 80% perf-profile.children.cycles-pp.cpuidle_enter 0.01 ±223% +1.3 1.36 ± 80% perf-profile.children.cycles-pp.cpuidle_enter_state 0.77 ± 44% +1.4 2.15 ± 62% perf-profile.children.cycles-pp.load_balance 0.20 ± 61% +1.4 1.64 ± 77% perf-profile.children.cycles-pp.pick_next_task_fair 0.02 ±142% +1.5 1.50 ± 80% perf-profile.children.cycles-pp.cpuidle_idle_call 0.04 ±146% +1.6 1.62 ± 80% perf-profile.children.cycles-pp.newidle_balance 0.03 ±141% +1.6 1.66 ± 79% perf-profile.children.cycles-pp.secondary_startup_64_no_verify 0.03 ±141% +1.6 1.66 ± 79% perf-profile.children.cycles-pp.cpu_startup_entry 0.03 ±141% +1.6 1.66 ± 79% perf-profile.children.cycles-pp.do_idle 1.94 ± 28% -1.0 0.95 ± 13% perf-profile.self.cycles-pp.task_mm_cid_work 0.13 ± 31% -0.1 0.08 ± 17% perf-profile.self.cycles-pp.percpu_counter_add_batch 0.00 +0.3 0.26 ± 77% perf-profile.self.cycles-pp.intel_idle 0.67 ± 44% +1.1 1.76 ± 60% perf-profile.self.cycles-pp.update_sg_lb_stats 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