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Message-ID: <20210802024945.GA8372@xsang-OptiPlex-9020>
Date: Mon, 2 Aug 2021 10:49:45 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Sandeep Patil <sspatil@...roid.com>,
Michael Kerrisk <mtk.manpages@...il.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
zhengjun.xing@...ux.intel.com
Subject: [pipe] 3a34b13a88: hackbench.throughput -12.6% regression
Greeting,
FYI, we noticed a -12.6% regression of hackbench.throughput due to commit:
commit: 3a34b13a88caeb2800ab44a4918f230041b37dd9 ("pipe: make pipe writes always wake up readers")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: hackbench
on test machine: 96 threads 2 sockets Ice Lake with 256G memory
with following parameters:
nr_threads: 100%
iterations: 4
mode: process
ipc: pipe
cpufreq_governor: performance
ucode: 0xb000280
test-description: Hackbench is both a benchmark and a stress test for the Linux kernel scheduler.
test-url: https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/sched/cfs-scheduler/hackbench.c
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
bin/lkp run generated-yaml-file
=========================================================================================
compiler/cpufreq_governor/ipc/iterations/kconfig/mode/nr_threads/rootfs/tbox_group/testcase/ucode:
gcc-9/performance/pipe/4/x86_64-rhel-8.3/process/100%/debian-10.4-x86_64-20200603.cgz/lkp-icl-2sp1/hackbench/0xb000280
commit:
4669e13cd6 ("Merge tag 'block-5.14-2021-07-30' of git://git.kernel.dk/linux-block")
3a34b13a88 ("pipe: make pipe writes always wake up readers")
4669e13cd67f8532 3a34b13a88caeb2800ab44a4918
---------------- ---------------------------
%stddev %change %stddev
\ | \
544258 -12.6% 475829 hackbench.throughput
84.88 +14.4% 97.08 hackbench.time.elapsed_time
84.88 +14.4% 97.08 hackbench.time.elapsed_time.max
5.035e+08 ± 2% +23.6% 6.222e+08 hackbench.time.involuntary_context_switches
6892 +16.1% 8002 hackbench.time.system_time
953.30 +6.8% 1018 hackbench.time.user_time
1.003e+09 +16.4% 1.168e+09 hackbench.time.voluntary_context_switches
100612 +10.4% 111038 meminfo.AnonHugePages
3.83 ± 11% -0.6 3.19 ± 5% mpstat.cpu.all.idle%
0.05 ± 2% -0.0 0.04 ± 2% mpstat.cpu.all.soft%
0.72 ± 13% -0.2 0.57 turbostat.C1%
66799255 ± 5% +55.4% 1.038e+08 turbostat.IRQ
17392735 +4.0% 18083175 vmstat.system.cs
759236 ± 4% +36.5% 1036422 vmstat.system.in
35655124 +6.3% 37906260 proc-vmstat.numa_hit
35587231 +6.3% 37837737 proc-vmstat.numa_local
35647053 +6.3% 37897853 proc-vmstat.pgalloc_normal
35563777 +6.3% 37815534 proc-vmstat.pgfree
8.10 ±103% -4.6 3.49 ±154% perf-profile.calltrace.cycles-pp.seq_read_iter.seq_read.vfs_read.ksys_read.do_syscall_64
8.10 ±103% -4.6 3.49 ±154% perf-profile.calltrace.cycles-pp.seq_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.85 ±106% -4.4 3.49 ±154% perf-profile.calltrace.cycles-pp.proc_pid_status.proc_single_show.seq_read_iter.seq_read.vfs_read
7.85 ±106% -4.4 3.49 ±154% perf-profile.calltrace.cycles-pp.proc_single_show.seq_read_iter.seq_read.vfs_read.ksys_read
3.50 ±103% +0.7 4.23 ±143% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.do_sys_open
7.11 ±127% -7.1 0.00 perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
6.68 ±133% -6.7 0.00 perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
8.10 ±103% -4.6 3.49 ±154% perf-profile.children.cycles-pp.seq_read
7.85 ±106% -4.4 3.49 ±154% perf-profile.children.cycles-pp.proc_pid_status
7.85 ±106% -4.4 3.49 ±154% perf-profile.children.cycles-pp.proc_single_show
7.66 ±109% -3.4 4.23 ±143% perf-profile.children.cycles-pp.link_path_walk
9.41 +9.5% 10.30 perf-stat.i.MPKI
4.361e+10 -4.4% 4.169e+10 perf-stat.i.branch-instructions
0.74 +0.1 0.80 ± 2% perf-stat.i.branch-miss-rate%
3.163e+08 +3.0% 3.258e+08 ± 2% perf-stat.i.branch-misses
6.03 ± 3% -0.6 5.46 ± 2% perf-stat.i.cache-miss-rate%
1.148e+08 ± 2% -4.6% 1.096e+08 ± 2% perf-stat.i.cache-misses
2.019e+09 +4.8% 2.116e+09 perf-stat.i.cache-references
17901191 +3.7% 18564184 perf-stat.i.context-switches
1.27 +5.8% 1.35 perf-stat.i.cpi
703234 ± 6% +32.2% 929682 ± 3% perf-stat.i.cpu-migrations
2562 ± 2% +6.0% 2717 ± 2% perf-stat.i.cycles-between-cache-misses
0.07 ± 2% +0.0 0.08 ± 2% perf-stat.i.dTLB-load-miss-rate%
44303865 ± 2% +9.8% 48637001 perf-stat.i.dTLB-load-misses
6.517e+10 -5.2% 6.178e+10 perf-stat.i.dTLB-loads
3.893e+10 -3.4% 3.763e+10 perf-stat.i.dTLB-stores
2.182e+11 -4.3% 2.088e+11 perf-stat.i.instructions
0.80 -5.2% 0.76 perf-stat.i.ipc
10.90 ± 11% -28.7% 7.77 ± 11% perf-stat.i.major-faults
1560 -4.4% 1492 perf-stat.i.metric.M/sec
9811 -9.2% 8904 perf-stat.i.minor-faults
8014412 ± 6% -18.5% 6533868 ± 5% perf-stat.i.node-loads
9821 -9.3% 8912 perf-stat.i.page-faults
9.24 +9.6% 10.12 perf-stat.overall.MPKI
0.72 +0.1 0.78 ± 2% perf-stat.overall.branch-miss-rate%
5.69 ± 2% -0.5 5.18 ± 2% perf-stat.overall.cache-miss-rate%
1.25 +5.5% 1.32 perf-stat.overall.cpi
2374 ± 2% +5.7% 2510 ± 2% perf-stat.overall.cycles-between-cache-misses
0.07 +0.0 0.08 perf-stat.overall.dTLB-load-miss-rate%
0.80 -5.2% 0.76 perf-stat.overall.ipc
4.313e+10 -4.3% 4.129e+10 perf-stat.ps.branch-instructions
3.124e+08 +3.2% 3.223e+08 ± 2% perf-stat.ps.branch-misses
1.134e+08 ± 2% -4.4% 1.085e+08 ± 2% perf-stat.ps.cache-misses
1.994e+09 +5.0% 2.093e+09 perf-stat.ps.cache-references
17684557 +3.9% 18367344 perf-stat.ps.context-switches
2.692e+11 +1.1% 2.722e+11 perf-stat.ps.cpu-cycles
686423 ± 6% +33.0% 913152 ± 3% perf-stat.ps.cpu-migrations
43736179 +10.0% 48097818 perf-stat.ps.dTLB-load-misses
6.446e+10 -5.1% 6.118e+10 perf-stat.ps.dTLB-loads
3.851e+10 -3.2% 3.727e+10 perf-stat.ps.dTLB-stores
2.158e+11 -4.2% 2.068e+11 perf-stat.ps.instructions
10.28 ± 11% -28.3% 7.37 ± 11% perf-stat.ps.major-faults
9390 -8.8% 8566 ± 2% perf-stat.ps.minor-faults
7938983 ± 6% -18.3% 6483156 ± 5% perf-stat.ps.node-loads
9400 -8.8% 8573 ± 2% perf-stat.ps.page-faults
1.845e+13 +9.4% 2.02e+13 perf-stat.total.instructions
12447 ± 5% +17.9% 14680 ± 5% softirqs.CPU0.RCU
11964 ± 6% +17.1% 14015 ± 3% softirqs.CPU1.RCU
11909 ± 5% +21.5% 14470 ± 5% softirqs.CPU10.RCU
11897 ± 6% +16.5% 13855 ± 4% softirqs.CPU12.RCU
12237 ± 4% +14.3% 13992 ± 5% softirqs.CPU13.RCU
12760 ± 7% +22.5% 15630 ± 6% softirqs.CPU17.RCU
12875 ± 7% +23.6% 15909 ± 5% softirqs.CPU19.RCU
11568 ± 5% +20.3% 13918 ± 3% softirqs.CPU2.RCU
13069 ± 7% +21.1% 15823 ± 5% softirqs.CPU21.RCU
13003 ± 6% +32.0% 17163 ± 13% softirqs.CPU22.RCU
13094 ± 9% +21.9% 15967 ± 3% softirqs.CPU23.RCU
12931 ± 5% +19.4% 15434 ± 8% softirqs.CPU24.RCU
12766 ± 5% +19.0% 15187 ± 7% softirqs.CPU25.RCU
12810 ± 4% +18.1% 15128 ± 7% softirqs.CPU26.RCU
12890 ± 5% +18.7% 15301 ± 7% softirqs.CPU27.RCU
12863 ± 6% +17.9% 15167 ± 8% softirqs.CPU28.RCU
12016 ± 7% +17.1% 14066 ± 2% softirqs.CPU3.RCU
12652 ± 6% +20.1% 15190 ± 10% softirqs.CPU30.RCU
12779 ± 5% +19.2% 15226 ± 7% softirqs.CPU31.RCU
12056 ± 8% +23.4% 14878 ± 5% softirqs.CPU32.RCU
12246 ± 9% +20.9% 14808 ± 6% softirqs.CPU34.RCU
12136 ± 5% +19.9% 14549 ± 6% softirqs.CPU35.RCU
12079 ± 3% +17.7% 14217 ± 7% softirqs.CPU36.RCU
11889 ± 4% +19.6% 14218 ± 6% softirqs.CPU37.RCU
12056 ± 4% +19.0% 14341 ± 6% softirqs.CPU38.RCU
11974 ± 5% +19.8% 14349 ± 6% softirqs.CPU39.RCU
11750 ± 6% +18.1% 13878 ± 6% softirqs.CPU4.RCU
12369 ± 7% +15.8% 14318 ± 6% softirqs.CPU40.RCU
12176 ± 5% +18.2% 14393 ± 6% softirqs.CPU41.RCU
11903 ± 4% +18.9% 14154 ± 5% softirqs.CPU42.RCU
11876 ± 4% +20.9% 14361 ± 4% softirqs.CPU43.RCU
11959 ± 5% +20.8% 14445 ± 6% softirqs.CPU44.RCU
12030 ± 7% +19.4% 14365 ± 6% softirqs.CPU45.RCU
12393 ± 4% +19.3% 14786 ± 7% softirqs.CPU46.RCU
12197 ± 5% +18.6% 14470 ± 6% softirqs.CPU47.RCU
11729 ± 7% +17.5% 13777 ± 3% softirqs.CPU48.RCU
11433 ± 5% +22.9% 14049 ± 4% softirqs.CPU49.RCU
11723 ± 3% +16.2% 13621 ± 3% softirqs.CPU5.RCU
11595 ± 6% +18.9% 13783 ± 3% softirqs.CPU50.RCU
11633 ± 5% +21.3% 14108 ± 4% softirqs.CPU52.RCU
11694 ± 5% +18.0% 13796 ± 4% softirqs.CPU53.RCU
11832 ± 5% +16.9% 13829 ± 5% softirqs.CPU54.RCU
11784 ± 6% +20.8% 14232 ± 4% softirqs.CPU55.RCU
11807 ± 6% +18.8% 14029 ± 4% softirqs.CPU56.RCU
11570 ± 7% +20.4% 13925 ± 5% softirqs.CPU57.RCU
11999 ± 7% +20.2% 14427 ± 5% softirqs.CPU58.RCU
11330 ± 7% +20.8% 13692 ± 6% softirqs.CPU59.RCU
11520 ± 5% +17.9% 13580 ± 3% softirqs.CPU6.RCU
11753 ± 6% +15.4% 13558 ± 2% softirqs.CPU60.RCU
11508 ± 6% +17.7% 13550 ± 3% softirqs.CPU61.RCU
11126 ± 10% +21.2% 13488 ± 3% softirqs.CPU62.RCU
12442 ± 8% +27.8% 15901 ± 5% softirqs.CPU64.RCU
12552 ± 7% +21.9% 15303 ± 5% softirqs.CPU65.RCU
12423 ± 6% +20.4% 14952 ± 5% softirqs.CPU66.RCU
12716 ± 7% +19.7% 15218 ± 5% softirqs.CPU67.RCU
12329 ± 7% +25.3% 15449 ± 6% softirqs.CPU68.RCU
12529 ± 7% +23.0% 15416 ± 5% softirqs.CPU69.RCU
11695 ± 5% +18.9% 13907 ± 4% softirqs.CPU7.RCU
12421 ± 6% +25.5% 15582 ± 6% softirqs.CPU70.RCU
12663 ± 7% +21.9% 15436 ± 5% softirqs.CPU71.RCU
12636 ± 7% +17.8% 14890 ± 8% softirqs.CPU72.RCU
12716 ± 7% +17.9% 14988 ± 8% softirqs.CPU73.RCU
12546 ± 5% +16.2% 14577 ± 8% softirqs.CPU74.RCU
12677 ± 6% +18.3% 15000 ± 7% softirqs.CPU75.RCU
12639 ± 6% +17.8% 14890 ± 7% softirqs.CPU76.RCU
12322 ± 5% +19.0% 14664 ± 8% softirqs.CPU77.RCU
12338 ± 5% +20.7% 14887 ± 8% softirqs.CPU78.RCU
12671 ± 5% +18.0% 14948 ± 8% softirqs.CPU79.RCU
11863 ± 5% +16.6% 13831 ± 3% softirqs.CPU8.RCU
11686 ± 5% +20.6% 14097 ± 5% softirqs.CPU80.RCU
11703 ± 6% +21.9% 14269 ± 4% softirqs.CPU82.RCU
11679 ± 4% +19.3% 13938 ± 5% softirqs.CPU83.RCU
11771 ± 4% +16.9% 13759 ± 10% softirqs.CPU84.RCU
11465 ± 4% +18.7% 13611 ± 5% softirqs.CPU85.RCU
11584 ± 4% +19.4% 13832 ± 6% softirqs.CPU86.RCU
11564 ± 4% +18.4% 13689 ± 4% softirqs.CPU87.RCU
11395 ± 4% +19.3% 13593 ± 5% softirqs.CPU88.RCU
11618 ± 4% +18.2% 13733 ± 5% softirqs.CPU89.RCU
11535 ± 5% +18.3% 13643 ± 5% softirqs.CPU9.RCU
11525 ± 3% +17.6% 13548 ± 5% softirqs.CPU90.RCU
11367 ± 3% +21.2% 13779 ± 5% softirqs.CPU91.RCU
11519 ± 6% +17.7% 13555 ± 6% softirqs.CPU92.RCU
11286 ± 6% +23.9% 13979 ± 5% softirqs.CPU93.RCU
11748 ± 4% +17.8% 13836 ± 6% softirqs.CPU95.RCU
7592 ± 11% +58.2% 12015 ± 57% softirqs.NET_RX
1165396 ± 3% +19.2% 1389425 ± 4% softirqs.RCU
172050 +14.4% 196874 interrupts.CPU0.LOC:Local_timer_interrupts
480047 ± 14% +77.7% 853153 ± 8% interrupts.CPU0.RES:Rescheduling_interrupts
172187 +14.4% 196935 interrupts.CPU1.LOC:Local_timer_interrupts
451155 ± 11% +91.2% 862509 ± 9% interrupts.CPU1.RES:Rescheduling_interrupts
172084 +14.4% 196921 interrupts.CPU10.LOC:Local_timer_interrupts
460876 ± 12% +83.3% 844723 ± 5% interrupts.CPU10.RES:Rescheduling_interrupts
172080 +14.4% 196910 interrupts.CPU11.LOC:Local_timer_interrupts
478819 ± 18% +90.1% 910319 ± 9% interrupts.CPU11.RES:Rescheduling_interrupts
172115 +14.4% 196840 interrupts.CPU12.LOC:Local_timer_interrupts
468516 ± 19% +79.9% 843060 ± 11% interrupts.CPU12.RES:Rescheduling_interrupts
172011 +14.4% 196859 interrupts.CPU13.LOC:Local_timer_interrupts
456764 ± 17% +85.1% 845446 ± 7% interrupts.CPU13.RES:Rescheduling_interrupts
172111 +14.4% 196877 interrupts.CPU14.LOC:Local_timer_interrupts
432031 ± 14% +99.3% 861102 ± 7% interrupts.CPU14.RES:Rescheduling_interrupts
172147 +14.4% 196870 interrupts.CPU15.LOC:Local_timer_interrupts
455488 ± 17% +90.7% 868551 ± 7% interrupts.CPU15.RES:Rescheduling_interrupts
172003 +14.5% 196913 interrupts.CPU16.LOC:Local_timer_interrupts
472295 ± 17% +75.4% 828368 ± 10% interrupts.CPU16.RES:Rescheduling_interrupts
171985 +14.5% 196916 interrupts.CPU17.LOC:Local_timer_interrupts
480713 ± 15% +78.2% 856566 ± 7% interrupts.CPU17.RES:Rescheduling_interrupts
171980 +14.5% 196865 interrupts.CPU18.LOC:Local_timer_interrupts
478651 ± 13% +79.1% 857356 ± 8% interrupts.CPU18.RES:Rescheduling_interrupts
172037 +14.4% 196875 interrupts.CPU19.LOC:Local_timer_interrupts
459007 ± 15% +85.8% 852930 ± 7% interrupts.CPU19.RES:Rescheduling_interrupts
172210 +14.4% 196928 interrupts.CPU2.LOC:Local_timer_interrupts
467677 ± 17% +79.9% 841505 ± 11% interrupts.CPU2.RES:Rescheduling_interrupts
172041 +14.4% 196856 interrupts.CPU20.LOC:Local_timer_interrupts
483538 ± 14% +82.0% 880187 ± 7% interrupts.CPU20.RES:Rescheduling_interrupts
172119 +14.4% 196941 interrupts.CPU21.LOC:Local_timer_interrupts
462455 ± 15% +78.8% 826649 ± 6% interrupts.CPU21.RES:Rescheduling_interrupts
171983 +14.4% 196830 interrupts.CPU22.LOC:Local_timer_interrupts
472547 ± 18% +78.4% 843091 ± 10% interrupts.CPU22.RES:Rescheduling_interrupts
171943 +14.5% 196860 interrupts.CPU23.LOC:Local_timer_interrupts
457901 ± 12% +79.1% 819895 ± 9% interrupts.CPU23.RES:Rescheduling_interrupts
171684 +14.6% 196801 interrupts.CPU24.LOC:Local_timer_interrupts
514148 ± 18% +62.5% 835721 ± 9% interrupts.CPU24.RES:Rescheduling_interrupts
171650 +14.6% 196776 interrupts.CPU25.LOC:Local_timer_interrupts
536969 ± 22% +61.9% 869226 ± 8% interrupts.CPU25.RES:Rescheduling_interrupts
171701 +14.6% 196809 interrupts.CPU26.LOC:Local_timer_interrupts
524497 ± 21% +69.0% 886296 ± 10% interrupts.CPU26.RES:Rescheduling_interrupts
171665 +14.7% 196818 interrupts.CPU27.LOC:Local_timer_interrupts
538990 ± 24% +59.3% 858808 ± 10% interrupts.CPU27.RES:Rescheduling_interrupts
171585 +14.7% 196782 interrupts.CPU28.LOC:Local_timer_interrupts
528650 ± 22% +68.2% 889093 ± 12% interrupts.CPU28.RES:Rescheduling_interrupts
171610 +14.7% 196780 interrupts.CPU29.LOC:Local_timer_interrupts
525768 ± 25% +67.5% 880456 ± 8% interrupts.CPU29.RES:Rescheduling_interrupts
172081 +14.4% 196925 interrupts.CPU3.LOC:Local_timer_interrupts
464521 ± 17% +77.0% 822073 ± 9% interrupts.CPU3.RES:Rescheduling_interrupts
171737 +14.6% 196758 interrupts.CPU30.LOC:Local_timer_interrupts
518840 ± 23% +73.1% 898314 ± 8% interrupts.CPU30.RES:Rescheduling_interrupts
171581 +14.7% 196801 interrupts.CPU31.LOC:Local_timer_interrupts
516607 ± 24% +67.8% 866720 ± 10% interrupts.CPU31.RES:Rescheduling_interrupts
171710 +14.6% 196793 interrupts.CPU32.LOC:Local_timer_interrupts
515658 ± 25% +60.0% 824828 ± 11% interrupts.CPU32.RES:Rescheduling_interrupts
171727 +14.6% 196808 interrupts.CPU33.LOC:Local_timer_interrupts
516588 ± 21% +65.9% 856986 ± 10% interrupts.CPU33.RES:Rescheduling_interrupts
171691 +14.6% 196814 interrupts.CPU34.LOC:Local_timer_interrupts
515117 ± 24% +61.1% 829679 ± 11% interrupts.CPU34.RES:Rescheduling_interrupts
171667 +14.6% 196777 interrupts.CPU35.LOC:Local_timer_interrupts
531011 ± 20% +56.1% 829120 ± 11% interrupts.CPU35.RES:Rescheduling_interrupts
171731 +14.6% 196809 interrupts.CPU36.LOC:Local_timer_interrupts
536363 ± 20% +58.8% 851958 ± 8% interrupts.CPU36.RES:Rescheduling_interrupts
171493 +14.8% 196879 interrupts.CPU37.LOC:Local_timer_interrupts
534322 ± 24% +55.3% 830066 ± 13% interrupts.CPU37.RES:Rescheduling_interrupts
171661 +14.6% 196807 interrupts.CPU38.LOC:Local_timer_interrupts
519552 ± 24% +63.9% 851431 ± 14% interrupts.CPU38.RES:Rescheduling_interrupts
171732 +14.6% 196842 interrupts.CPU39.LOC:Local_timer_interrupts
514974 ± 19% +73.5% 893368 ± 10% interrupts.CPU39.RES:Rescheduling_interrupts
172053 +14.5% 196937 interrupts.CPU4.LOC:Local_timer_interrupts
476008 ± 20% +76.4% 839533 ± 10% interrupts.CPU4.RES:Rescheduling_interrupts
171748 +14.6% 196838 interrupts.CPU40.LOC:Local_timer_interrupts
502383 ± 24% +75.5% 881705 ± 13% interrupts.CPU40.RES:Rescheduling_interrupts
171767 +14.6% 196788 interrupts.CPU41.LOC:Local_timer_interrupts
515739 ± 26% +66.7% 859913 ± 13% interrupts.CPU41.RES:Rescheduling_interrupts
171782 +14.6% 196785 interrupts.CPU42.LOC:Local_timer_interrupts
530399 ± 24% +70.0% 901663 ± 9% interrupts.CPU42.RES:Rescheduling_interrupts
171750 +14.6% 196831 interrupts.CPU43.LOC:Local_timer_interrupts
557949 ± 23% +58.6% 884833 ± 10% interrupts.CPU43.RES:Rescheduling_interrupts
171756 +14.6% 196802 interrupts.CPU44.LOC:Local_timer_interrupts
522061 ± 21% +68.7% 880527 ± 14% interrupts.CPU44.RES:Rescheduling_interrupts
171786 +14.6% 196790 interrupts.CPU45.LOC:Local_timer_interrupts
540577 ± 23% +65.1% 892540 ± 13% interrupts.CPU45.RES:Rescheduling_interrupts
171586 +14.7% 196800 interrupts.CPU46.LOC:Local_timer_interrupts
542628 ± 25% +53.6% 833219 ± 8% interrupts.CPU46.RES:Rescheduling_interrupts
171507 +14.8% 196849 interrupts.CPU47.LOC:Local_timer_interrupts
540778 ± 21% +57.4% 850965 ± 6% interrupts.CPU47.RES:Rescheduling_interrupts
172079 +14.4% 196832 interrupts.CPU48.LOC:Local_timer_interrupts
489128 ± 13% +71.4% 838135 ± 10% interrupts.CPU48.RES:Rescheduling_interrupts
172106 +14.4% 196899 interrupts.CPU49.LOC:Local_timer_interrupts
453944 ± 14% +96.8% 893583 ± 9% interrupts.CPU49.RES:Rescheduling_interrupts
171987 +14.5% 196856 interrupts.CPU5.LOC:Local_timer_interrupts
484175 ± 20% +71.6% 830828 ± 11% interrupts.CPU5.RES:Rescheduling_interrupts
172181 +14.3% 196828 interrupts.CPU50.LOC:Local_timer_interrupts
464812 ± 14% +81.2% 842077 ± 8% interrupts.CPU50.RES:Rescheduling_interrupts
172050 +14.5% 196930 interrupts.CPU51.LOC:Local_timer_interrupts
475875 ± 17% +71.0% 813946 ± 8% interrupts.CPU51.RES:Rescheduling_interrupts
172069 +14.4% 196915 interrupts.CPU52.LOC:Local_timer_interrupts
463346 ± 17% +83.9% 852084 ± 9% interrupts.CPU52.RES:Rescheduling_interrupts
172038 +14.4% 196897 interrupts.CPU53.LOC:Local_timer_interrupts
474533 ± 20% +74.9% 829996 ± 6% interrupts.CPU53.RES:Rescheduling_interrupts
172062 +14.4% 196870 interrupts.CPU54.LOC:Local_timer_interrupts
484893 ± 21% +75.5% 851218 ± 8% interrupts.CPU54.RES:Rescheduling_interrupts
171996 +14.4% 196808 interrupts.CPU55.LOC:Local_timer_interrupts
469735 ± 14% +72.4% 809917 ± 6% interrupts.CPU55.RES:Rescheduling_interrupts
172108 +14.4% 196906 interrupts.CPU56.LOC:Local_timer_interrupts
458936 ± 16% +83.5% 842109 ± 7% interrupts.CPU56.RES:Rescheduling_interrupts
172095 +14.4% 196859 interrupts.CPU57.LOC:Local_timer_interrupts
464846 ± 17% +84.6% 857895 ± 7% interrupts.CPU57.RES:Rescheduling_interrupts
172134 +14.4% 196906 interrupts.CPU58.LOC:Local_timer_interrupts
466419 ± 16% +78.6% 832811 ± 11% interrupts.CPU58.RES:Rescheduling_interrupts
172116 +14.4% 196912 interrupts.CPU59.LOC:Local_timer_interrupts
476724 ± 17% +88.1% 896558 ± 9% interrupts.CPU59.RES:Rescheduling_interrupts
172150 +14.4% 196869 interrupts.CPU6.LOC:Local_timer_interrupts
476706 ± 23% +76.7% 842133 ± 6% interrupts.CPU6.RES:Rescheduling_interrupts
172110 +14.4% 196819 interrupts.CPU60.LOC:Local_timer_interrupts
463662 ± 17% +81.6% 842003 ± 13% interrupts.CPU60.RES:Rescheduling_interrupts
172042 +14.4% 196903 interrupts.CPU61.LOC:Local_timer_interrupts
449164 ± 13% +89.3% 850111 ± 5% interrupts.CPU61.RES:Rescheduling_interrupts
172190 +14.4% 196954 interrupts.CPU62.LOC:Local_timer_interrupts
457682 ± 20% +83.1% 837803 ± 5% interrupts.CPU62.RES:Rescheduling_interrupts
172142 +14.4% 196935 interrupts.CPU63.LOC:Local_timer_interrupts
466861 ± 16% +85.3% 865097 ± 9% interrupts.CPU63.RES:Rescheduling_interrupts
172091 +14.4% 196921 interrupts.CPU64.LOC:Local_timer_interrupts
460827 ± 18% +83.2% 844369 ± 10% interrupts.CPU64.RES:Rescheduling_interrupts
172084 +14.4% 196919 interrupts.CPU65.LOC:Local_timer_interrupts
465536 ± 20% +81.8% 846151 ± 3% interrupts.CPU65.RES:Rescheduling_interrupts
172076 +14.4% 196923 interrupts.CPU66.LOC:Local_timer_interrupts
473969 ± 16% +84.7% 875513 ± 8% interrupts.CPU66.RES:Rescheduling_interrupts
172104 +14.4% 196943 interrupts.CPU67.LOC:Local_timer_interrupts
454104 ± 16% +88.0% 853533 ± 5% interrupts.CPU67.RES:Rescheduling_interrupts
172095 +14.4% 196922 interrupts.CPU68.LOC:Local_timer_interrupts
474337 ± 13% +88.4% 893576 ± 9% interrupts.CPU68.RES:Rescheduling_interrupts
172210 +14.3% 196912 interrupts.CPU69.LOC:Local_timer_interrupts
474798 ± 11% +77.9% 844752 ± 5% interrupts.CPU69.RES:Rescheduling_interrupts
172054 +14.4% 196906 interrupts.CPU7.LOC:Local_timer_interrupts
476046 ± 12% +74.0% 828127 ± 8% interrupts.CPU7.RES:Rescheduling_interrupts
172097 +14.4% 196869 interrupts.CPU70.LOC:Local_timer_interrupts
488889 ± 19% +73.5% 848149 ± 15% interrupts.CPU70.RES:Rescheduling_interrupts
172049 +14.5% 196978 interrupts.CPU71.LOC:Local_timer_interrupts
453513 ± 15% +85.4% 840788 ± 9% interrupts.CPU71.RES:Rescheduling_interrupts
171738 +14.6% 196825 interrupts.CPU72.LOC:Local_timer_interrupts
516711 ± 21% +63.7% 845713 ± 8% interrupts.CPU72.RES:Rescheduling_interrupts
171619 +14.7% 196825 interrupts.CPU73.LOC:Local_timer_interrupts
546790 ± 22% +61.4% 882525 ± 8% interrupts.CPU73.RES:Rescheduling_interrupts
171744 +14.6% 196806 interrupts.CPU74.LOC:Local_timer_interrupts
522024 ± 23% +65.2% 862192 ± 9% interrupts.CPU74.RES:Rescheduling_interrupts
171716 +14.6% 196854 interrupts.CPU75.LOC:Local_timer_interrupts
531488 ± 25% +66.1% 882690 ± 10% interrupts.CPU75.RES:Rescheduling_interrupts
171708 +14.6% 196845 interrupts.CPU76.LOC:Local_timer_interrupts
522789 ± 24% +70.4% 890642 ± 11% interrupts.CPU76.RES:Rescheduling_interrupts
171657 +14.7% 196846 interrupts.CPU77.LOC:Local_timer_interrupts
532873 ± 25% +67.1% 890242 ± 11% interrupts.CPU77.RES:Rescheduling_interrupts
171793 +14.6% 196911 interrupts.CPU78.LOC:Local_timer_interrupts
529585 ± 22% +69.5% 897564 ± 10% interrupts.CPU78.RES:Rescheduling_interrupts
171649 +14.7% 196878 interrupts.CPU79.LOC:Local_timer_interrupts
507941 ± 18% +70.7% 866940 ± 12% interrupts.CPU79.RES:Rescheduling_interrupts
172110 +14.4% 196909 interrupts.CPU8.LOC:Local_timer_interrupts
462124 ± 16% +86.6% 862371 ± 4% interrupts.CPU8.RES:Rescheduling_interrupts
171701 +14.7% 196908 interrupts.CPU80.LOC:Local_timer_interrupts
540658 ± 22% +56.5% 846154 ± 8% interrupts.CPU80.RES:Rescheduling_interrupts
171845 +14.5% 196837 interrupts.CPU81.LOC:Local_timer_interrupts
530859 ± 22% +58.3% 840275 ± 7% interrupts.CPU81.RES:Rescheduling_interrupts
171748 +14.6% 196840 interrupts.CPU82.LOC:Local_timer_interrupts
552798 ± 24% +54.5% 854162 ± 10% interrupts.CPU82.RES:Rescheduling_interrupts
171813 +14.6% 196815 interrupts.CPU83.LOC:Local_timer_interrupts
531018 ± 21% +55.8% 827459 ± 12% interrupts.CPU83.RES:Rescheduling_interrupts
171803 +14.6% 196872 interrupts.CPU84.LOC:Local_timer_interrupts
539149 ± 22% +58.8% 856221 ± 8% interrupts.CPU84.RES:Rescheduling_interrupts
171569 +14.8% 196880 interrupts.CPU85.LOC:Local_timer_interrupts
526010 ± 22% +66.2% 874052 ± 9% interrupts.CPU85.RES:Rescheduling_interrupts
171692 +14.7% 196906 interrupts.CPU86.LOC:Local_timer_interrupts
534575 ± 22% +66.5% 890142 ± 14% interrupts.CPU86.RES:Rescheduling_interrupts
171716 +14.6% 196813 interrupts.CPU87.LOC:Local_timer_interrupts
511131 ± 21% +75.4% 896459 ± 8% interrupts.CPU87.RES:Rescheduling_interrupts
171805 +14.6% 196896 interrupts.CPU88.LOC:Local_timer_interrupts
501808 ± 22% +78.8% 897272 ± 12% interrupts.CPU88.RES:Rescheduling_interrupts
171807 +14.6% 196844 interrupts.CPU89.LOC:Local_timer_interrupts
533732 ± 27% +65.9% 885715 ± 9% interrupts.CPU89.RES:Rescheduling_interrupts
172160 +14.3% 196842 interrupts.CPU9.LOC:Local_timer_interrupts
462507 ± 15% +82.6% 844650 ± 7% interrupts.CPU9.RES:Rescheduling_interrupts
171869 +14.6% 196894 interrupts.CPU90.LOC:Local_timer_interrupts
534561 ± 23% +62.3% 867424 ± 8% interrupts.CPU90.RES:Rescheduling_interrupts
171852 +14.6% 196874 interrupts.CPU91.LOC:Local_timer_interrupts
554759 ± 21% +61.1% 893865 ± 10% interrupts.CPU91.RES:Rescheduling_interrupts
171819 +14.6% 196887 interrupts.CPU92.LOC:Local_timer_interrupts
525086 ± 26% +65.3% 867955 ± 11% interrupts.CPU92.RES:Rescheduling_interrupts
171811 +14.6% 196888 interrupts.CPU93.LOC:Local_timer_interrupts
524309 ± 22% +67.6% 878816 ± 10% interrupts.CPU93.RES:Rescheduling_interrupts
171673 +14.7% 196886 interrupts.CPU94.LOC:Local_timer_interrupts
535674 ± 24% +57.9% 845858 ± 6% interrupts.CPU94.RES:Rescheduling_interrupts
171591 +14.7% 196883 interrupts.CPU95.LOC:Local_timer_interrupts
531867 ± 24% +61.5% 858734 ± 8% interrupts.CPU95.RES:Rescheduling_interrupts
16502093 +14.5% 18898965 interrupts.LOC:Local_timer_interrupts
47805899 ± 7% +72.4% 82403841 ± 2% interrupts.RES:Rescheduling_interrupts
hackbench.throughput
560000 +------------------------------------------------------------------+
550000 |-+ + +.|
|.+.+.+.+ +. .+.+.+.+.+.+.+.+..+.+.+.+.+.+. .+.+.+.+..+.+.+. + |
540000 |-+ + + + |
530000 |-+ |
520000 |-+ |
510000 |-+ |
| |
500000 |-+ |
490000 |-+ |
480000 |-+ O O O O O O O O O O O |
470000 |-+ O O O O O O O O O |
| O O O O O O O O O O |
460000 |-O |
450000 +------------------------------------------------------------------+
hackbench.time.user_time
1040 +--------------------------------------------------------------------+
| O O O O |
1020 |-+ O O O O O O O O O O O O O O |
| O O O O O O O O O O O |
| O |
1000 |-+ |
| |
980 |-+ + |
| : : |
960 |-+ : : |
|.+.+. .+. .+..+. .+.+.. .+. .+ +.. .+ : +. |
| +..+.+.+ + +.+.+ +.+ + + + +.+.+.+ : + +.|
940 |-+ + + |
| |
920 +--------------------------------------------------------------------+
hackbench.time.system_time
8400 +--------------------------------------------------------------------+
| O |
8200 |-+ O O O O |
8000 |-+ O O O O O O O O O O O O |
| O O O O O O O O O O O O |
7800 |-+ |
| |
7600 |-+ |
| |
7400 |-+ |
7200 |-+ |
| |
7000 |-+ .+.+.+. + |
|.+.+.+..+. .+.+.+.+..+.+.+.+.+.+..+.+. .+.+.. .+ +.. + + |
6800 +--------------------------------------------------------------------+
hackbench.time.elapsed_time
102 +---------------------------------------------------------------------+
100 |-+ O O |
| O O O |
98 |-+ O O O O O O O O O O O O O O O |
96 |-+ O O O O O O O O O O |
| |
94 |-+ |
92 |-+ |
90 |-+ |
| |
88 |-+ |
86 |-+ .+.+.+. .+ |
|.+.+..+.+.+.+.+..+.+.+.+.+.+..+.+.+.+.+..+. .+.+. .+ +.+. + |
84 |-+ + +. +.|
82 +---------------------------------------------------------------------+
hackbench.time.elapsed_time.max
102 +---------------------------------------------------------------------+
100 |-+ O O |
| O O O |
98 |-+ O O O O O O O O O O O O O O O |
96 |-+ O O O O O O O O O O |
| |
94 |-+ |
92 |-+ |
90 |-+ |
| |
88 |-+ |
86 |-+ .+.+.+. .+ |
|.+.+..+.+.+.+.+..+.+.+.+.+.+..+.+.+.+.+..+. .+.+. .+ +.+. + |
84 |-+ + +. +.|
82 +---------------------------------------------------------------------+
hackbench.time.voluntary_context_switches
1.25e+09 +----------------------------------------------------------------+
| |
1.2e+09 |-O O O O O O O |
| O O O O O O O O O O O O O O O |
| O O O O O |
1.15e+09 |-+ O O O O |
| |
1.1e+09 |-+ |
| |
1.05e+09 |-+ |
| .+ |
|.+.+.+.+. .+ + .+.+.+.+. .+.+..+.+.+. .+.+. .+.+.+ +. .|
1e+09 |-+ + + + +.+.+ +.+ + + + |
| + |
9.5e+08 +----------------------------------------------------------------+
hackbench.time.involuntary_context_switches
6.6e+08 +-----------------------------------------------------------------+
| O O O O |
6.4e+08 |-+ O O O O O O O O O O O O O O |
6.2e+08 |-+ O O O O O |
| O O O O |
6e+08 |-+ |
5.8e+08 |-+ |
| |
5.6e+08 |-+ |
5.4e+08 |-+ |
| |
5.2e+08 |-+ .+.. +. |
5e+08 |.+.+.+.+.+.+ +.+.+.+.+.+.+.+.+.+.+. .+ +.+..+.+.+.+.+ : +.|
| + + + + : |
4.8e+08 +-----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
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.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
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