tree 92babaf6dbccea098808e64bc2ce48a5d63ef06d
parent 1d9f8d1b824bf69cf984c1c36e5641b51eea42bb
author Jin Yao <yao.jin@linux.intel.com> 1512482591 +0800
committer Arnaldo Carvalho de Melo <acme@redhat.com> 1514387747 -0300

perf stat: Resort '--per-thread' result

There are many threads reported if we enable '--per-thread'
globally.

1. Most of the threads are not counted or counting value 0.
This patch removes these threads.

2. We also resort the threads in display according to the
counting value. It's useful for user to see the hottest
threads easily.

For example, the new results would be:

root@skl:/tmp# perf stat --per-thread
^C
 Performance counter stats for 'system wide':

            perf-24165              4.302433      cpu-clock (msec)          #    0.001 CPUs utilized
          vmstat-23127              1.562215      cpu-clock (msec)          #    0.000 CPUs utilized
      irqbalance-2780               0.827851      cpu-clock (msec)          #    0.000 CPUs utilized
            sshd-23111              0.278308      cpu-clock (msec)          #    0.000 CPUs utilized
        thermald-2841               0.230880      cpu-clock (msec)          #    0.000 CPUs utilized
            sshd-23058              0.207306      cpu-clock (msec)          #    0.000 CPUs utilized
     kworker/0:2-19991              0.133983      cpu-clock (msec)          #    0.000 CPUs utilized
   kworker/u16:1-18249              0.125636      cpu-clock (msec)          #    0.000 CPUs utilized
       rcu_sched-8                  0.085533      cpu-clock (msec)          #    0.000 CPUs utilized
   kworker/u16:2-23146              0.077139      cpu-clock (msec)          #    0.000 CPUs utilized
           gmain-2700               0.041789      cpu-clock (msec)          #    0.000 CPUs utilized
     kworker/4:1-15354              0.028370      cpu-clock (msec)          #    0.000 CPUs utilized
     kworker/6:0-17528              0.023895      cpu-clock (msec)          #    0.000 CPUs utilized
    kworker/4:1H-1887               0.013209      cpu-clock (msec)          #    0.000 CPUs utilized
     kworker/5:2-31362              0.011627      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/0-11                 0.010892      cpu-clock (msec)          #    0.000 CPUs utilized
     kworker/3:2-12870              0.010220      cpu-clock (msec)          #    0.000 CPUs utilized
     ksoftirqd/0-7                  0.008869      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/1-14                 0.008476      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/7-50                 0.002944      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/3-26                 0.002893      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/4-32                 0.002759      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/2-20                 0.002429      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/6-44                 0.001491      cpu-clock (msec)          #    0.000 CPUs utilized
      watchdog/5-38                 0.001477      cpu-clock (msec)          #    0.000 CPUs utilized
       rcu_sched-8                        10      context-switches          #    0.117 M/sec
   kworker/u16:1-18249                     7      context-switches          #    0.056 M/sec
            sshd-23111                     4      context-switches          #    0.014 M/sec
          vmstat-23127                     4      context-switches          #    0.003 M/sec
            perf-24165                     4      context-switches          #    0.930 K/sec
     kworker/0:2-19991                     3      context-switches          #    0.022 M/sec
   kworker/u16:2-23146                     3      context-switches          #    0.039 M/sec
     kworker/4:1-15354                     2      context-switches          #    0.070 M/sec
     kworker/6:0-17528                     2      context-switches          #    0.084 M/sec
            sshd-23058                     2      context-switches          #    0.010 M/sec
     ksoftirqd/0-7                         1      context-switches          #    0.113 M/sec
      watchdog/0-11                        1      context-switches          #    0.092 M/sec
      watchdog/1-14                        1      context-switches          #    0.118 M/sec
      watchdog/2-20                        1      context-switches          #    0.412 M/sec
      watchdog/3-26                        1      context-switches          #    0.346 M/sec
      watchdog/4-32                        1      context-switches          #    0.362 M/sec
      watchdog/5-38                        1      context-switches          #    0.677 M/sec
      watchdog/6-44                        1      context-switches          #    0.671 M/sec
      watchdog/7-50                        1      context-switches          #    0.340 M/sec
    kworker/4:1H-1887                      1      context-switches          #    0.076 M/sec
        thermald-2841                      1      context-switches          #    0.004 M/sec
           gmain-2700                      1      context-switches          #    0.024 M/sec
      irqbalance-2780                      1      context-switches          #    0.001 M/sec
     kworker/3:2-12870                     1      context-switches          #    0.098 M/sec
     kworker/5:2-31362                     1      context-switches          #    0.086 M/sec
   kworker/u16:1-18249                     2      cpu-migrations            #    0.016 M/sec
   kworker/u16:2-23146                     2      cpu-migrations            #    0.026 M/sec
       rcu_sched-8                         1      cpu-migrations            #    0.012 M/sec
            sshd-23058                     1      cpu-migrations            #    0.005 M/sec
            perf-24165             8,833,385      cycles                    #    2.053 GHz
          vmstat-23127             1,702,699      cycles                    #    1.090 GHz
      irqbalance-2780                739,847      cycles                    #    0.894 GHz
            sshd-23111               269,506      cycles                    #    0.968 GHz
        thermald-2841                204,556      cycles                    #    0.886 GHz
            sshd-23058               158,780      cycles                    #    0.766 GHz
     kworker/0:2-19991               112,981      cycles                    #    0.843 GHz
   kworker/u16:1-18249               100,926      cycles                    #    0.803 GHz
       rcu_sched-8                    74,024      cycles                    #    0.865 GHz
   kworker/u16:2-23146                55,984      cycles                    #    0.726 GHz
           gmain-2700                 34,278      cycles                    #    0.820 GHz
     kworker/4:1-15354                20,665      cycles                    #    0.728 GHz
     kworker/6:0-17528                16,445      cycles                    #    0.688 GHz
     kworker/5:2-31362                 9,492      cycles                    #    0.816 GHz
      watchdog/3-26                    8,695      cycles                    #    3.006 GHz
    kworker/4:1H-1887                  8,238      cycles                    #    0.624 GHz
      watchdog/4-32                    7,580      cycles                    #    2.747 GHz
     kworker/3:2-12870                 7,306      cycles                    #    0.715 GHz
      watchdog/2-20                    7,274      cycles                    #    2.995 GHz
      watchdog/0-11                    6,988      cycles                    #    0.642 GHz
     ksoftirqd/0-7                     6,376      cycles                    #    0.719 GHz
      watchdog/1-14                    5,340      cycles                    #    0.630 GHz
      watchdog/5-38                    4,061      cycles                    #    2.749 GHz
      watchdog/6-44                    3,976      cycles                    #    2.667 GHz
      watchdog/7-50                    3,418      cycles                    #    1.161 GHz
          vmstat-23127             2,511,699      instructions              #    1.48  insn per cycle
            perf-24165             1,829,908      instructions              #    0.21  insn per cycle
      irqbalance-2780              1,190,204      instructions              #    1.61  insn per cycle
        thermald-2841                143,544      instructions              #    0.70  insn per cycle
            sshd-23111               128,138      instructions              #    0.48  insn per cycle
            sshd-23058                57,654      instructions              #    0.36  insn per cycle
       rcu_sched-8                    44,063      instructions              #    0.60  insn per cycle
   kworker/u16:1-18249                42,551      instructions              #    0.42  insn per cycle
     kworker/0:2-19991                25,873      instructions              #    0.23  insn per cycle
   kworker/u16:2-23146                21,407      instructions              #    0.38  insn per cycle
           gmain-2700                 13,691      instructions              #    0.40  insn per cycle
     kworker/4:1-15354                12,964      instructions              #    0.63  insn per cycle
     kworker/6:0-17528                10,034      instructions              #    0.61  insn per cycle
     kworker/5:2-31362                 5,203      instructions              #    0.55  insn per cycle
     kworker/3:2-12870                 4,866      instructions              #    0.67  insn per cycle
    kworker/4:1H-1887                  3,586      instructions              #    0.44  insn per cycle
     ksoftirqd/0-7                     3,463      instructions              #    0.54  insn per cycle
      watchdog/0-11                    3,135      instructions              #    0.45  insn per cycle
      watchdog/1-14                    3,135      instructions              #    0.59  insn per cycle
      watchdog/2-20                    3,135      instructions              #    0.43  insn per cycle
      watchdog/3-26                    3,135      instructions              #    0.36  insn per cycle
      watchdog/4-32                    3,135      instructions              #    0.41  insn per cycle
      watchdog/5-38                    3,135      instructions              #    0.77  insn per cycle
      watchdog/6-44                    3,135      instructions              #    0.79  insn per cycle
      watchdog/7-50                    3,135      instructions              #    0.92  insn per cycle
          vmstat-23127               539,181      branches                  #  345.139 M/sec
            perf-24165               375,364      branches                  #   87.245 M/sec
      irqbalance-2780                262,092      branches                  #  316.593 M/sec
        thermald-2841                 31,611      branches                  #  136.915 M/sec
            sshd-23111                21,874      branches                  #   78.596 M/sec
            sshd-23058                10,682      branches                  #   51.528 M/sec
       rcu_sched-8                     8,693      branches                  #  101.633 M/sec
   kworker/u16:1-18249                 7,891      branches                  #   62.808 M/sec
     kworker/0:2-19991                 5,761      branches                  #   42.998 M/sec
   kworker/u16:2-23146                 4,099      branches                  #   53.138 M/sec
     kworker/4:1-15354                 2,755      branches                  #   97.110 M/sec
           gmain-2700                  2,638      branches                  #   63.127 M/sec
     kworker/6:0-17528                 2,216      branches                  #   92.739 M/sec
     kworker/5:2-31362                 1,132      branches                  #   97.360 M/sec
     kworker/3:2-12870                 1,081      branches                  #  105.773 M/sec
    kworker/4:1H-1887                    725      branches                  #   54.887 M/sec
     ksoftirqd/0-7                       707      branches                  #   79.716 M/sec
      watchdog/0-11                      652      branches                  #   59.860 M/sec
      watchdog/1-14                      652      branches                  #   76.923 M/sec
      watchdog/2-20                      652      branches                  #  268.423 M/sec
      watchdog/3-26                      652      branches                  #  225.372 M/sec
      watchdog/4-32                      652      branches                  #  236.318 M/sec
      watchdog/5-38                      652      branches                  #  441.435 M/sec
      watchdog/6-44                      652      branches                  #  437.290 M/sec
      watchdog/7-50                      652      branches                  #  221.467 M/sec
          vmstat-23127                 8,960      branch-misses             #    1.66% of all branches
      irqbalance-2780                  3,047      branch-misses             #    1.16% of all branches
            perf-24165                 2,876      branch-misses             #    0.77% of all branches
            sshd-23111                 1,843      branch-misses             #    8.43% of all branches
        thermald-2841                  1,444      branch-misses             #    4.57% of all branches
            sshd-23058                 1,379      branch-misses             #   12.91% of all branches
   kworker/u16:1-18249                   982      branch-misses             #   12.44% of all branches
       rcu_sched-8                       893      branch-misses             #   10.27% of all branches
   kworker/u16:2-23146                   578      branch-misses             #   14.10% of all branches
     kworker/0:2-19991                   376      branch-misses             #    6.53% of all branches
           gmain-2700                    280      branch-misses             #   10.61% of all branches
     kworker/6:0-17528                   196      branch-misses             #    8.84% of all branches
     kworker/4:1-15354                   187      branch-misses             #    6.79% of all branches
     kworker/5:2-31362                   123      branch-misses             #   10.87% of all branches
      watchdog/0-11                       95      branch-misses             #   14.57% of all branches
      watchdog/4-32                       89      branch-misses             #   13.65% of all branches
     kworker/3:2-12870                    80      branch-misses             #    7.40% of all branches
      watchdog/3-26                       61      branch-misses             #    9.36% of all branches
    kworker/4:1H-1887                     60      branch-misses             #    8.28% of all branches
      watchdog/2-20                       52      branch-misses             #    7.98% of all branches
     ksoftirqd/0-7                        47      branch-misses             #    6.65% of all branches
      watchdog/1-14                       46      branch-misses             #    7.06% of all branches
      watchdog/7-50                       13      branch-misses             #    1.99% of all branches
      watchdog/5-38                        8      branch-misses             #    1.23% of all branches
      watchdog/6-44                        7      branch-misses             #    1.07% of all branches

       3.695150786 seconds time elapsed

root@skl:/tmp# perf stat --per-thread -M IPC,CPI
^C

 Performance counter stats for 'system wide':

          vmstat-23127             2,000,783      inst_retired.any          #      1.5 IPC
        thermald-2841              1,472,670      inst_retired.any          #      1.3 IPC
            sshd-23111               977,374      inst_retired.any          #      1.2 IPC
            perf-24163               483,779      inst_retired.any          #      0.2 IPC
           gmain-2700                341,213      inst_retired.any          #      0.9 IPC
            sshd-23058               148,891      inst_retired.any          #      0.8 IPC
    rtkit-daemon-3288                 71,210      inst_retired.any          #      0.7 IPC
   kworker/u16:1-18249                39,562      inst_retired.any          #      0.3 IPC
       rcu_sched-8                    14,474      inst_retired.any          #      0.8 IPC
     kworker/0:2-19991                 7,659      inst_retired.any          #      0.2 IPC
     kworker/4:1-15354                 6,714      inst_retired.any          #      0.8 IPC
    rtkit-daemon-3289                  4,839      inst_retired.any          #      0.3 IPC
     kworker/6:0-17528                 3,321      inst_retired.any          #      0.6 IPC
     kworker/5:2-31362                 3,215      inst_retired.any          #      0.5 IPC
     kworker/7:2-23145                 3,173      inst_retired.any          #      0.7 IPC
    kworker/4:1H-1887                  1,719      inst_retired.any          #      0.3 IPC
      watchdog/0-11                    1,479      inst_retired.any          #      0.3 IPC
      watchdog/1-14                    1,479      inst_retired.any          #      0.3 IPC
      watchdog/2-20                    1,479      inst_retired.any          #      0.4 IPC
      watchdog/3-26                    1,479      inst_retired.any          #      0.4 IPC
      watchdog/4-32                    1,479      inst_retired.any          #      0.3 IPC
      watchdog/5-38                    1,479      inst_retired.any          #      0.3 IPC
      watchdog/6-44                    1,479      inst_retired.any          #      0.7 IPC
      watchdog/7-50                    1,479      inst_retired.any          #      0.7 IPC
   kworker/u16:2-23146                 1,408      inst_retired.any          #      0.5 IPC
            perf-24163             2,249,872      cpu_clk_unhalted.thread
          vmstat-23127             1,352,455      cpu_clk_unhalted.thread
        thermald-2841              1,161,140      cpu_clk_unhalted.thread
            sshd-23111               807,827      cpu_clk_unhalted.thread
           gmain-2700                375,535      cpu_clk_unhalted.thread
            sshd-23058               194,071      cpu_clk_unhalted.thread
   kworker/u16:1-18249               114,306      cpu_clk_unhalted.thread
    rtkit-daemon-3288                103,547      cpu_clk_unhalted.thread
     kworker/0:2-19991                46,550      cpu_clk_unhalted.thread
       rcu_sched-8                    18,855      cpu_clk_unhalted.thread
    rtkit-daemon-3289                 17,549      cpu_clk_unhalted.thread
     kworker/4:1-15354                 8,812      cpu_clk_unhalted.thread
     kworker/5:2-31362                 6,812      cpu_clk_unhalted.thread
    kworker/4:1H-1887                  5,270      cpu_clk_unhalted.thread
     kworker/6:0-17528                 5,111      cpu_clk_unhalted.thread
     kworker/7:2-23145                 4,667      cpu_clk_unhalted.thread
      watchdog/0-11                    4,663      cpu_clk_unhalted.thread
      watchdog/1-14                    4,663      cpu_clk_unhalted.thread
      watchdog/4-32                    4,626      cpu_clk_unhalted.thread
      watchdog/5-38                    4,403      cpu_clk_unhalted.thread
      watchdog/3-26                    3,936      cpu_clk_unhalted.thread
      watchdog/2-20                    3,850      cpu_clk_unhalted.thread
   kworker/u16:2-23146                 2,654      cpu_clk_unhalted.thread
      watchdog/6-44                    2,017      cpu_clk_unhalted.thread
      watchdog/7-50                    2,017      cpu_clk_unhalted.thread
          vmstat-23127             2,000,783      inst_retired.any          #      0.7 CPI
        thermald-2841              1,472,670      inst_retired.any          #      0.8 CPI
            sshd-23111               977,374      inst_retired.any          #      0.8 CPI
            perf-24163               495,037      inst_retired.any          #      4.7 CPI
           gmain-2700                341,213      inst_retired.any          #      1.1 CPI
            sshd-23058               148,891      inst_retired.any          #      1.3 CPI
    rtkit-daemon-3288                 71,210      inst_retired.any          #      1.5 CPI
   kworker/u16:1-18249                39,562      inst_retired.any          #      2.9 CPI
       rcu_sched-8                    14,474      inst_retired.any          #      1.3 CPI
     kworker/0:2-19991                 7,659      inst_retired.any          #      6.1 CPI
     kworker/4:1-15354                 6,714      inst_retired.any          #      1.3 CPI
    rtkit-daemon-3289                  4,839      inst_retired.any          #      3.6 CPI
     kworker/6:0-17528                 3,321      inst_retired.any          #      1.5 CPI
     kworker/5:2-31362                 3,215      inst_retired.any          #      2.1 CPI
     kworker/7:2-23145                 3,173      inst_retired.any          #      1.5 CPI
    kworker/4:1H-1887                  1,719      inst_retired.any          #      3.1 CPI
      watchdog/0-11                    1,479      inst_retired.any          #      3.2 CPI
      watchdog/1-14                    1,479      inst_retired.any          #      3.2 CPI
      watchdog/2-20                    1,479      inst_retired.any          #      2.6 CPI
      watchdog/3-26                    1,479      inst_retired.any          #      2.7 CPI
      watchdog/4-32                    1,479      inst_retired.any          #      3.1 CPI
      watchdog/5-38                    1,479      inst_retired.any          #      3.0 CPI
      watchdog/6-44                    1,479      inst_retired.any          #      1.4 CPI
      watchdog/7-50                    1,479      inst_retired.any          #      1.4 CPI
   kworker/u16:2-23146                 1,408      inst_retired.any          #      1.9 CPI
            perf-24163             2,302,323      cycles
          vmstat-23127             1,352,455      cycles
        thermald-2841              1,161,140      cycles
            sshd-23111               807,827      cycles
           gmain-2700                375,535      cycles
            sshd-23058               194,071      cycles
   kworker/u16:1-18249               114,306      cycles
    rtkit-daemon-3288                103,547      cycles
     kworker/0:2-19991                46,550      cycles
       rcu_sched-8                    18,855      cycles
    rtkit-daemon-3289                 17,549      cycles
     kworker/4:1-15354                 8,812      cycles
     kworker/5:2-31362                 6,812      cycles
    kworker/4:1H-1887                  5,270      cycles
     kworker/6:0-17528                 5,111      cycles
     kworker/7:2-23145                 4,667      cycles
      watchdog/0-11                    4,663      cycles
      watchdog/1-14                    4,663      cycles
      watchdog/4-32                    4,626      cycles
      watchdog/5-38                    4,403      cycles
      watchdog/3-26                    3,936      cycles
      watchdog/2-20                    3,850      cycles
   kworker/u16:2-23146                 2,654      cycles
      watchdog/6-44                    2,017      cycles
      watchdog/7-50                    2,017      cycles

       2.175726600 seconds time elapsed

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1512482591-4646-12-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>