FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/urgent commit c291ee622165cb2c8d4e7af63fffd499354a23be ("genirq: Prevent proc race against freeing of irq descriptors")
testbox/testcase/testparams: lkp-nex04/netperf/performance-300s-200%-SCTP_STREAM 3a5dc1fafb016560 c291ee622165cb2c8d4e7af63f ---------------- -------------------------- %stddev %change %stddev \ | \ 16 ± 44% -73.1% 4 ± 36% sched_debug.cfs_rq[32]:/.tg_runnable_contrib 1 ± 0% +175.0% 2 ± 15% sched_debug.cfs_rq[53]:/.nr_spread_over 814 ± 41% -70.5% 240 ± 37% sched_debug.cfs_rq[32]:/.avg->runnable_avg_sum 136 ± 35% +104.6% 278 ± 26% sched_debug.cpu#5.curr->pid 4149 ± 8% +140.6% 9981 ± 22% sched_debug.cfs_rq[35]:/.min_vruntime 5151 ± 28% +97.3% 10166 ± 19% sched_debug.cfs_rq[58]:/.min_vruntime 4897 ± 15% +86.8% 9149 ± 23% sched_debug.cfs_rq[41]:/.min_vruntime 5001 ± 8% +100.2% 10011 ± 6% sched_debug.cfs_rq[62]:/.min_vruntime 990 ± 25% +103.7% 2017 ± 49% sched_debug.cfs_rq[16]:/.exec_clock 106 ± 40% +65.1% 175 ± 26% sched_debug.cfs_rq[37]:/.tg_load_contrib 4649 ± 14% +122.4% 10338 ± 24% sched_debug.cfs_rq[43]:/.min_vruntime 4432 ± 9% +97.2% 8742 ± 15% sched_debug.cfs_rq[54]:/.min_vruntime 1011 ± 16% +80.0% 1820 ± 36% sched_debug.cfs_rq[23]:/.exec_clock 10 ± 22% -41.9% 6 ± 17% sched_debug.cfs_rq[11]:/.tg_runnable_contrib 2 ± 19% +77.8% 4 ± 30% sched_debug.cfs_rq[0]:/.nr_spread_over 5093 ± 4% +81.3% 9232 ± 18% sched_debug.cfs_rq[56]:/.min_vruntime 193 ± 26% -39.5% 117 ± 45% sched_debug.cfs_rq[38]:/.tg_load_contrib 5340 ± 7% +89.5% 10118 ± 13% sched_debug.cfs_rq[48]:/.min_vruntime 6055 ± 35% +48.9% 9017 ± 13% sched_debug.cfs_rq[40]:/.min_vruntime 4871 ± 13% +78.7% 8702 ± 24% sched_debug.cfs_rq[57]:/.min_vruntime 4374 ± 13% +76.7% 7729 ± 19% sched_debug.cfs_rq[45]:/.min_vruntime 5321 ± 13% +74.7% 9297 ± 22% sched_debug.cfs_rq[59]:/.min_vruntime 4738 ± 12% +104.0% 9668 ± 6% sched_debug.cfs_rq[37]:/.min_vruntime 5426 ± 7% +80.9% 9817 ± 2% sched_debug.cfs_rq[51]:/.min_vruntime 5067 ± 18% +96.8% 9974 ± 22% sched_debug.cfs_rq[55]:/.min_vruntime 5318 ± 6% +64.7% 8757 ± 26% sched_debug.cfs_rq[42]:/.min_vruntime 5160 ± 11% +87.9% 9696 ± 5% sched_debug.cfs_rq[53]:/.min_vruntime 5208 ± 8% +81.0% 9429 ± 13% sched_debug.cfs_rq[50]:/.min_vruntime 4395 ± 26% +78.9% 7865 ± 8% sched_debug.cfs_rq[32]:/.min_vruntime 5596 ± 41% +65.5% 9264 ± 19% sched_debug.cfs_rq[49]:/.min_vruntime 540 ± 21% -37.9% 336 ± 11% sched_debug.cfs_rq[11]:/.avg->runnable_avg_sum 102 ± 39% +61.9% 165 ± 24% sched_debug.cfs_rq[37]:/.blocked_load_avg 4916 ± 7% +77.5% 8726 ± 11% sched_debug.cfs_rq[38]:/.min_vruntime 307 ± 6% +84.3% 567 ± 31% sched_debug.cfs_rq[54]:/.exec_clock 5541 ± 11% +75.9% 9746 ± 4% sched_debug.cfs_rq[60]:/.min_vruntime 5250 ± 22% +72.3% 9049 ± 13% sched_debug.cfs_rq[36]:/.min_vruntime 285 ± 2% +64.6% 470 ± 17% sched_debug.cfs_rq[37]:/.exec_clock 27 ± 42% +102.7% 55 ± 36% sched_debug.cfs_rq[6]:/.blocked_load_avg 28 ± 40% +98.3% 57 ± 35% sched_debug.cfs_rq[6]:/.tg_load_contrib 5523 ± 14% +65.3% 9129 ± 9% sched_debug.cfs_rq[52]:/.min_vruntime 1424 ± 13% +81.7% 2588 ± 41% sched_debug.cpu#50.sched_count 282 ± 6% +59.0% 448 ± 10% sched_debug.cfs_rq[43]:/.exec_clock 114 ± 18% +80.1% 206 ± 16% sched_debug.cfs_rq[48]:/.blocked_load_avg 285 ± 6% +48.3% 424 ± 9% sched_debug.cfs_rq[35]:/.exec_clock 865 ± 13% -34.0% 571 ± 21% sched_debug.cpu#55.sched_goidle 162 ± 18% -35.1% 105 ± 13% sched_debug.cfs_rq[54]:/.blocked_load_avg 2017 ± 11% -29.1% 1431 ± 16% sched_debug.cpu#55.nr_switches 2047 ± 11% -28.5% 1464 ± 16% sched_debug.cpu#55.sched_count 302 ± 14% -20.0% 242 ± 14% sched_debug.cpu#53.ttwu_local 303 ± 10% +73.7% 527 ± 38% sched_debug.cfs_rq[60]:/.exec_clock 286 ± 15% +32.1% 378 ± 13% sched_debug.cfs_rq[45]:/.exec_clock 127 ± 22% +64.6% 210 ± 17% sched_debug.cfs_rq[48]:/.tg_load_contrib 171 ± 14% -29.3% 121 ± 10% sched_debug.cfs_rq[54]:/.tg_load_contrib 92 ± 42% +72.4% 159 ± 19% sched_debug.cfs_rq[58]:/.blocked_load_avg 16297106 ± 4% +27.5% 20771822 ± 5% cpuidle.C1-NHM.time 453 ± 37% +47.9% 670 ± 8% sched_debug.cfs_rq[31]:/.avg->runnable_avg_sum 8 ± 43% +54.3% 13 ± 8% sched_debug.cfs_rq[31]:/.tg_runnable_contrib 318 ± 10% +67.0% 531 ± 42% sched_debug.cfs_rq[55]:/.exec_clock 1496 ± 14% +37.8% 2061 ± 13% sched_debug.cpu#37.sched_count 1466 ± 15% +37.8% 2019 ± 13% sched_debug.cpu#37.nr_switches 977 ± 14% +73.2% 1692 ± 49% sched_debug.cfs_rq[28]:/.exec_clock 830 ± 6% +22.0% 1013 ± 9% sched_debug.cpu#45.ttwu_count 613 ± 17% +42.8% 876 ± 16% sched_debug.cpu#37.sched_goidle 8839 ± 7% -11.4% 7828 ± 10% sched_debug.cpu#3.ttwu_count 116654 ± 6% -12.7% 101799 ± 5% meminfo.DirectMap4k 1041 ± 6% +34.3% 1399 ± 27% sched_debug.cfs_rq[29]:/.exec_clock 6.66 ± 20% +175.2% 18.32 ± 2% time.system_time 16.79 ± 7% -48.0% 8.73 ± 1% time.user_time 7 ± 0% +17.9% 8 ± 5% time.percent_of_cpu_this_job_got 98436 ± 0% +1.6% 100045 ± 0% time.voluntary_context_switches lkp-nex04: Nehalem-EX Memory: 256G time.voluntary_context_switches 100500 ++-----------------------------------------------------------------+ O O O O | | O O O | 100000 ++ O O O O O O | | O O O O | | O | 99500 ++ | | | 99000 ++ | | | | | 98500 ++ .*.*.. .*.. .*.. .*..*.. | *..*.*..*. *..*.*..*..*.*..*..*..*.*. * *..* *.*..* | | 98000 ++-----------------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample To reproduce: apt-get install ruby ruby-oj git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/setup-local job.yaml # the job file attached in this email bin/run-local 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, Fengguang
--- testcase: netperf default_monitors: wait: pre-test uptime: iostat: vmstat: numa-numastat: numa-vmstat: numa-meminfo: proc-vmstat: proc-stat: meminfo: slabinfo: interrupts: lock_stat: latency_stats: softirqs: bdi_dev_mapping: diskstats: cpuidle: cpufreq: turbostat: sched_debug: interval: 10 pmeter: default_watchdogs: watch-oom: watchdog: cpufreq_governor: - performance commit: 057b16997d77a23a4dd2b8e8a9bd56656afac86d model: Nehalem-EX memory: 256G nr_ssd_partitions: 6 ssd_partitions: "/dev/disk/by-id/ata-INTEL_SSD*part1" swap_partitions: "/dev/disk/by-id/ata-WDC_WD10EARS-00Y5B1_WD-WCAV5F059074-part2" runtime: 300s nr_threads: - 200% perf-profile: freq: 800 netperf: test: - SCTP_STREAM testbox: lkp-nex04 tbox_group: lkp-nex04 kconfig: x86_64-rhel enqueue_time: 2014-12-14 00:52:11.886525322 +08:00 head_commit: 057b16997d77a23a4dd2b8e8a9bd56656afac86d base_commit: b2776bf7149bddd1f4161f14f79520f17fc1d71d branch: linux-devel/devel-hourly-2014121400 kernel: "/kernel/x86_64-rhel/057b16997d77a23a4dd2b8e8a9bd56656afac86d/vmlinuz-3.18.0-g057b169" user: lkp queue: cyclic rootfs: debian-x86_64.cgz result_root: "/result/lkp-nex04/netperf/performance-300s-200%-SCTP_STREAM/debian-x86_64.cgz/x86_64-rhel/057b16997d77a23a4dd2b8e8a9bd56656afac86d/0" job_file: "/lkp/scheduled/lkp-nex04/cyclic_netperf-performance-300s-200%-SCTP_STREAM-x86_64-rhel-HEAD-057b16997d77a23a4dd2b8e8a9bd56656afac86d-0.yaml" dequeue_time: 2014-12-14 08:50:11.387688351 +08:00 job_state: finished loadavg: 0.16 0.22 0.14 2/526 13068 start_time: '1418518283' end_time: '1418518586' version: "/lkp/lkp/.src-20141214-052354"
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu10/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu11/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu12/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu13/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu14/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu15/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu16/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu17/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu18/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu19/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu20/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu21/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu22/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu23/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu24/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu25/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu26/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu27/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu28/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu29/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu30/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu31/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu32/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu33/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu34/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu35/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu36/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu37/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu38/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu39/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu40/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu41/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu42/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu43/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu44/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu45/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu46/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu47/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu48/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu49/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu50/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu51/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu52/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu53/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu54/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu55/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu56/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu57/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu58/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu59/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu60/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu61/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu62/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu63/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu7/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu8/cpufreq/scaling_governor echo performance > /sys/devices/system/cpu/cpu9/cpufreq/scaling_governor netserver netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300 netperf -t SCTP_STREAM -c -C -l 300
_______________________________________________ LKP mailing list l...@linux.intel.com