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Date: Thu, 24 Mar 2016 09:51:36 +0800 From: kernel test robot <xiaolong.ye@...el.com> To: Christoph Lameter <cl@...ux.com> Cc: LKML <linux-kernel@...r.kernel.org>, lkp@...org Subject: [lkp] [vmstat] 0eb77e9880: +2.7% pigz.throughput FYI, we noticed that pigz.throughput +2.7% improvement on https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit 0eb77e9880321915322d42913c3b53241739c8aa ("vmstat: make vmstat_updater deferrable again and shut down on idle") ========================================================================================= blocksize/compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/testcase: 128K/gcc-4.9/performance/x86_64-rhel/100%/debian-x86_64-2015-02-07.cgz/brickland1/pigz commit: 686739f6af5e8d5687ffebbf1193ff066aada6d9 0eb77e9880321915322d42913c3b53241739c8aa 686739f6af5e8d56 0eb77e9880321915322d42913c ---------------- -------------------------- %stddev %change %stddev \ | \ 1.989e+08 ± 0% +2.7% 2.043e+08 ± 0% pigz.throughput 19017 ± 2% -17.3% 15725 ± 4% pigz.time.involuntary_context_switches 1929 ± 0% +6.2% 2049 ± 0% pigz.time.percent_of_cpu_this_job_got 262.60 ± 0% +6.6% 279.90 ± 0% pigz.time.system_time 5532 ± 0% +6.2% 5873 ± 0% pigz.time.user_time 15031795 ± 0% +2.7% 15439431 ± 0% pigz.time.voluntary_context_switches 3978 ± 96% -99.8% 8.25 ± 33% numa-numastat.node3.other_node 19017 ± 2% -17.3% 15725 ± 4% time.involuntary_context_switches 1537 ± 1% -10.2% 1380 ± 1% proc-vmstat.nr_alloc_batch 768.25 ± 33% -100.0% 0.33 ±141% proc-vmstat.pgmigrate_fail 101204 ± 0% +2.4% 103648 ± 0% vmstat.system.cs 33988 ± 1% +4.6% 35542 ± 1% vmstat.system.in 16.57 ± 0% +6.3% 17.61 ± 0% turbostat.%Busy 346.00 ± 0% +3.0% 356.50 ± 0% turbostat.Avg_MHz 0.92 ± 1% -62.6% 0.35 ± 4% turbostat.CPU%c3 665.14 ± 0% +6.5% 708.22 ± 0% turbostat.CorWatt 677.67 ± 0% +6.4% 720.77 ± 0% turbostat.PkgWatt 401974 ± 10% +28.1% 514828 ± 10% numa-meminfo.node0.MemUsed 15203 ± 6% -11.9% 13388 ± 3% numa-meminfo.node2.SReclaimable 38174 ± 18% +25.5% 47898 ± 6% numa-meminfo.node3.Active(anon) 332312 ± 3% +14.4% 380028 ± 1% numa-meminfo.node3.MemUsed 15391 ± 19% +29.6% 19949 ± 6% numa-meminfo.node3.SReclaimable 51955 ± 7% +13.4% 58906 ± 2% numa-meminfo.node3.Slab 21485 ± 19% +23.2% 26468 ± 0% numa-vmstat.node1.numa_other 411.50 ± 4% -15.6% 347.50 ± 2% numa-vmstat.node2.nr_alloc_batch 3800 ± 6% -11.9% 3346 ± 3% numa-vmstat.node2.nr_slab_reclaimable 9542 ± 18% +25.4% 11969 ± 6% numa-vmstat.node3.nr_active_anon 403.25 ± 2% -12.6% 352.50 ± 3% numa-vmstat.node3.nr_alloc_batch 3847 ± 19% +29.6% 4986 ± 6% numa-vmstat.node3.nr_slab_reclaimable 428.00 ± 8% +38.0% 590.75 ± 21% slabinfo.blkdev_requests.active_objs 428.00 ± 8% +38.0% 590.75 ± 21% slabinfo.blkdev_requests.num_objs 26723 ± 2% -7.0% 24850 ± 3% slabinfo.kmalloc-256.active_objs 27745 ± 2% -7.0% 25801 ± 3% slabinfo.kmalloc-256.num_objs 1165 ± 5% +16.2% 1354 ± 3% slabinfo.mnt_cache.active_objs 1165 ± 5% +16.2% 1354 ± 3% slabinfo.mnt_cache.num_objs 5.87e+08 ± 2% +19.4% 7.012e+08 ± 7% cpuidle.C1-IVT-4S.time 651990 ± 0% -10.3% 584857 ± 0% cpuidle.C1-IVT-4S.usage 64334504 ± 2% -60.4% 25444312 ± 8% cpuidle.C1E-IVT-4S.time 121454 ± 1% -59.8% 48868 ± 7% cpuidle.C1E-IVT-4S.usage 2.634e+08 ± 1% -61.0% 1.028e+08 ± 5% cpuidle.C3-IVT-4S.time 451711 ± 1% -59.6% 182479 ± 7% cpuidle.C3-IVT-4S.usage 30487 ± 6% +41.4% 43112 ± 5% cpuidle.POLL.usage 1.15 ± 7% -83.2% 0.19 ± 10% perf-profile.cycles-pp.__remove_hrtimer.hrtimer_try_to_cancel.hrtimer_cancel.tick_nohz_restart.tick_nohz_idle_exit 2.65 ± 5% +11.7% 2.96 ± 2% perf-profile.cycles-pp.__schedule.schedule.futex_wait_queue_me.futex_wait.do_futex 3.67 ± 3% -25.4% 2.73 ± 8% perf-profile.cycles-pp.__tick_nohz_idle_enter.tick_nohz_idle_enter.cpu_startup_entry.start_secondary 3.70 ± 5% +8.9% 4.02 ± 2% perf-profile.cycles-pp.futex_wait.do_futex.sys_futex.entry_SYSCALL_64_fastpath 1.39 ± 6% -69.4% 0.42 ± 5% perf-profile.cycles-pp.hrtimer_cancel.tick_nohz_restart.tick_nohz_idle_exit.cpu_startup_entry.start_secondary 2.16 ± 4% -39.1% 1.31 ± 9% perf-profile.cycles-pp.hrtimer_start_range_ns.tick_nohz_stop_sched_tick.__tick_nohz_idle_enter.tick_nohz_idle_enter.cpu_startup_entry 1.36 ± 7% -72.1% 0.38 ± 8% perf-profile.cycles-pp.hrtimer_try_to_cancel.hrtimer_cancel.tick_nohz_restart.tick_nohz_idle_exit.cpu_startup_entry 0.88 ± 8% -15.3% 0.74 ± 9% perf-profile.cycles-pp.ktime_get.clockevents_program_event.tick_program_event.__remove_hrtimer.hrtimer_start_range_ns 0.97 ± 6% -10.1% 0.87 ± 6% perf-profile.cycles-pp.ktime_get.sched_clock_tick.sched_clock_idle_wakeup_event.tick_nohz_stop_idle.tick_nohz_idle_exit 0.65 ± 6% +44.1% 0.94 ± 8% perf-profile.cycles-pp.pick_next_task_fair.__schedule.schedule.futex_wait_queue_me.futex_wait 0.00 ± -1% +Inf% 2.02 ± 5% perf-profile.cycles-pp.quiet_vmstat.cpu_startup_entry.start_secondary 1.62 ± 6% -51.6% 0.78 ± 9% perf-profile.cycles-pp.read_hpet.ktime_get.clockevents_program_event.tick_program_event.__remove_hrtimer 1.67 ± 4% -49.9% 0.84 ± 6% perf-profile.cycles-pp.read_hpet.ktime_get.clockevents_program_event.tick_program_event.hrtimer_start_range_ns 0.00 ± -1% +Inf% 1.71 ± 5% perf-profile.cycles-pp.refresh_cpu_vm_stats.quiet_vmstat.cpu_startup_entry.start_secondary 2.79 ± 5% +10.1% 3.07 ± 2% perf-profile.cycles-pp.schedule.futex_wait_queue_me.futex_wait.do_futex.sys_futex 3.78 ± 3% -24.6% 2.85 ± 8% perf-profile.cycles-pp.tick_nohz_idle_enter.cpu_startup_entry.start_secondary 5.26 ± 4% -20.9% 4.16 ± 4% perf-profile.cycles-pp.tick_nohz_idle_exit.cpu_startup_entry.start_secondary 2.86 ± 6% -35.2% 1.85 ± 4% perf-profile.cycles-pp.tick_nohz_restart.tick_nohz_idle_exit.cpu_startup_entry.start_secondary 2.56 ± 3% -33.2% 1.71 ± 9% perf-profile.cycles-pp.tick_nohz_stop_sched_tick.__tick_nohz_idle_enter.tick_nohz_idle_enter.cpu_startup_entry.start_secondary 0.94 ± 4% -94.7% 0.05 ± 58% perf-profile.cycles-pp.tick_program_event.__remove_hrtimer.hrtimer_try_to_cancel.hrtimer_cancel.tick_nohz_restart brickland1: Brickland Ivy Bridge-EX Memory: 128G pigz.time.voluntary_context_switches 1.6e+07 ++----------------------------------------------------------------+ | O O O O O O O O O O O O O O O | 1.5e+07 O+*.*.O.O.*.*.*..*.O.*.O.O.O.O.*.*.*.*.*.*.*.*.*..*.*.*.*.*.*.*.*.* | : | | : | 1.4e+07 ++ | |: | 1.3e+07 ++ | |: | 1.2e+07 ++ | |: | | | 1.1e+07 ++ | * | 1e+07 ++----------------------------------------------------------------+ cpuidle.C1E-IVT-4S.time 9e+07 ++------------------------------------------------------------------+ | * | 8e+07 ++ :: | | : : | 7e+07 ++ : *. .*. | | .*.. .*.*.*.*. .*.. .*.*. .*. .*. : *.*.*. *.*. .* 6e+07 ++*.* * *.* *.* *.* *. *.* * | | : | 5e+07 ++ | |: | 4e+07 ++ | |: O | 3e+07 O+ O O O O O O O O O | * O O O O O O O O O O O | 2e+07 ++---------------------------------------------O--------------------+ cpuidle.C1E-IVT-4S.usage 130000 ++--------*-------------------------------------------*------------+ 120000 ++ .*. + *.*.*.*.*.*. .*.*. .*.*.*.*.*. .*.*.* *.*.*.*.*.* | *.* * * *..* * | 110000 ++: | 100000 ++: | |: | 90000 ++ | 80000 ++ | 70000 ++ | |: | 60000 O+O O O O | 50000 ++ O O O O O O O O O O O O O | | O O O O O | 40000 *+ | 30000 ++-----------------------------------------------------------------+ cpuidle.C3-IVT-4S.time 2.8e+08 ++------------*---------------------------------------------------+ 2.6e+08 ++ .*.*. .*.* *.*.*.*. .*.*. .*.*.*.*.*. .*..*.*.*.*.*.*.*.*.* | * * * *.* * | 2.4e+08 ++: | 2.2e+08 ++: | |: | 2e+08 ++ | 1.8e+08 ++ | 1.6e+08 ++ | |: | 1.4e+08 ++ | 1.2e+08 ++O O O | O O O O O O O O O O O O O O | 1e+08 ++ O O O O O O | 8e+07 ++----------------------------------------------------------------+ cpuidle.C3-IVT-4S.usage 500000 ++-----------------------------------------------------------------+ | *.. .*.*.. | 450000 ++*.*.*. + *.*.*.*.*.*. .*.*. .*.*.*.*.*.*.*.* *.*.*.*.*.* | : * * *..* | 400000 ++: | | : | 350000 ++ | |: | 300000 ++ | |: | 250000 ++ | |: O | 200000 O+O O O O O O O O O O O O O | | O O O O O O O O | 150000 *+-----------------------------------------------------------------+ turbostat.CPU_c3 1 ++--------------------------------------------------------------------+ | .*. .*.*.*..*.*. .*. .*.. .*. .*..*.*.*.*.*. .*. | 0.9 ++*.*. * * *.*..*.*.*.* * *.* *. *.* | : | 0.8 ++: | |: | 0.7 ++ | |: | 0.6 ++ | |: | 0.5 ++ | | | 0.4 *+O O O | O O O O O O O O O O O O O O O O O O O | 0.3 ++----------------------------------------------O---------------------+ [*] bisect-good sample [O] bisect-bad sample To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml 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. Thanks, Xiaolong Ye View attachment "job.yaml" of type "text/plain" (3430 bytes) View attachment "reproduce" of type "text/plain" (11291 bytes)
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