1. 26 Oct, 2012 7 commits
  2. 25 Oct, 2012 4 commits
    • Arnaldo Carvalho de Melo's avatar
      perf trace: Use sched:sched_stat_runtime to provide a thread summary · 1302d88e
      Arnaldo Carvalho de Melo authored
      [root@sandy ~]# perf trace --sched --duration 0.100 --pid `pidof firefox`
      <SNIP>
       17079.847 ( 0.009 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout
       17079.892 ( 0.010 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096         ) = -1 EAGAIN Resource temporarily unavailable
       17079.921 ( 0.013 ms): 17643 poll(ufds: 140037623086496, nfds: 11, timeout_msecs: 0) = 0 Timeout
       17079.949 ( 0.009 ms): 17643 read(fd: 4, buf: 140038178943092, count: 4096         ) = -1 EAGAIN Resource temporarily unavailable
      ^C
       _____________________________________________________________________
       __)    Summary of events    (__
      
                    [ task - pid ]     [ events ] [ ratio ]  [ runtime ]
       _____________________________________________________________________
      
                   firefox - 17643 :      18013   [ 72.2% ]    359.110 ms
                   firefox - 17663 :         41   [  0.2% ]     21.439 ms
                   firefox - 17664 :       6840   [ 27.4% ]    133.642 ms
                   firefox - 17667 :         46   [  0.2% ]      0.682 ms
      [root@sandy ~]#
      
      This is equivalent to the 'perf trace summary' subcomand in the tmp.perf/trace2
      branch.
      
      Another example, setting a huge duration filter to get just a system
      wide summary:
      
      [root@sandy ~]# perf trace --duration 10000.0 --sched
      ^C
       _____________________________________________________________________
       __)    Summary of events    (__
      
                    [ task - pid ]     [ events ] [ ratio ]  [ runtime ]
       _____________________________________________________________________
      
                 scsi_eh_1 - 258   :         15   [  0.0% ]      0.133 ms
              kworker/0:1H - 322   :         13   [  0.0% ]      0.032 ms
               jbd2/dm-0-8 - 384   :          4   [  0.0% ]      0.115 ms
               flush-253:0 - 470   :          1   [  0.0% ]      0.027 ms
                   firefox - 950   :       4783   [  0.1% ]     24.863 ms
                   firefox - 992   :       1883   [  0.1% ]      6.808 ms
                   firefox - 995   :         35   [  0.0% ]      0.111 ms
               ksoftirqd/6 - 4362  :          2   [  0.0% ]      0.005 ms
               ksoftirqd/7 - 4365  :          1   [  0.0% ]      0.007 ms
                      Xorg - 4671  :        148   [  0.0% ]      0.912 ms
           gnome-settings- - 4846  :         14   [  0.0% ]      0.086 ms
           seahorse-daemon - 4847  :         14   [  0.0% ]      0.092 ms
               gnome-panel - 4875  :         46   [  0.0% ]      0.159 ms
           gnome-power-man - 4918  :         16   [  0.0% ]      0.065 ms
           gvfs-afc-volume - 4992  :         77   [  0.0% ]      0.136 ms
           gnome-screensav - 5114  :         24   [  0.0% ]      0.128 ms
                     xchat - 8082  :        466   [  0.0% ]      2.019 ms
                  synergyc - 8369  :        941   [  0.0% ]      3.291 ms
                  synergyc - 8371  :         85   [  0.0% ]      1.817 ms
               jbd2/dm-4-8 - 9352  :          4   [  0.0% ]      0.109 ms
                   rpcbind - 9786  :          3   [  0.0% ]      0.017 ms
              rtkit-daemon - 12802 :         10   [  0.0% ]      0.038 ms
              rtkit-daemon - 12803 :          8   [  0.0% ]      0.000 ms
             udisks-daemon - 13020 :         27   [  0.0% ]      0.240 ms
               kworker/7:0 - 14651 :        669   [  0.0% ]      2.616 ms
               kworker/5:1 - 16220 :          2   [  0.0% ]      0.069 ms
               kworker/4:0 - 19776 :         13   [  0.0% ]      0.176 ms
                   openvpn - 20131 :        133   [  0.0% ]      0.762 ms
           plugin-containe - 20508 :      60658   [  1.7% ]    131.153 ms
              npviewer.bin - 20520 :      72208   [  2.0% ]    138.945 ms
              npviewer.bin - 20542 :         35   [  0.0% ]      0.074 ms
              npviewer.bin - 20543 :         30   [  0.0% ]      0.074 ms
              npviewer.bin - 20547 :         35   [  0.0% ]      0.092 ms
              npviewer.bin - 20552 :         35   [  0.0% ]      0.093 ms
                      sshd - 20645 :         32   [  0.0% ]      0.071 ms
              npviewer.bin - 21053 :         35   [  0.0% ]      0.074 ms
              npviewer.bin - 21054 :         35   [  0.0% ]      0.097 ms
               kworker/0:2 - 21169 :        149   [  0.0% ]      1.143 ms
               kworker/3:0 - 22171 :        113   [  0.0% ]     96.892 ms
               flush-253:4 - 22410 :          1   [  0.0% ]      0.028 ms
               kworker/6:0 - 24581 :         25   [  0.0% ]      0.275 ms
               kworker/1:0 - 25572 :          4   [  0.0% ]      0.103 ms
               kworker/2:1 - 26299 :        138   [  0.0% ]      1.440 ms
               kworker/0:0 - 26325 :          1   [  0.0% ]      0.003 ms
                      perf - 26330 :    3506967   [ 96.1% ]   6648.310 ms
      [root@sandy ~]#
      
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Namhyung Kim <namhyung@gmail.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Link: http://lkml.kernel.org/n/tip-mzuli0srnxyi1o029py6537x@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      1302d88e
    • Arnaldo Carvalho de Melo's avatar
      perf trace: Count number of events for each thread and globally · efd5745e
      Arnaldo Carvalho de Melo authored
      The nr_events in trace__run was local, but we will need it in other
      trace methods, move it to struct trace.
      
      We'll also need the number of events per thread, so introduce a
      nr_events method for that in struct thread_trace.
      
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Namhyung Kim <namhyung@gmail.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/n/tip-ksutaz0mtejnf7e6az3ca1td@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      efd5745e
    • Arnaldo Carvalho de Melo's avatar
      perf tools: Don't stop synthesizing threads when one vanishes · ba361c92
      Arnaldo Carvalho de Melo authored
      The perf_event__synthesize_threads routine synthesizes all the existing
      threads in the system, because we don't have any kernel facilities to
      ask for PERF_RECORD_{FORK,MMAP,COMM} for existing threads.
      
      It was returning an error as soon as one thread couldn't be synthesized,
      which is a bit extreme when, for instance, a forkish workload is
      running, like a kernel compile.
      
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Namhyung Kim <namhyung@gmail.com>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/n/tip-i7oas1eodpoer2bx38fwyasv@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      ba361c92
    • Ingo Molnar's avatar
      Merge tag 'perf-core-for-mingo' of... · 6ca2a9c6
      Ingo Molnar authored
      Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
      
      Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
      
       * Align the 'Ok'/'FAILED!' test results in 'perf test.
      
       * Support interrupted syscalls in 'trace'
      
       * Add an event duration column and filter in 'trace'.
      
       * There are references to the man pages in some tools, so try to build
         Documentation when installing, warning the user if that is not possible,
         from Borislav Petkov.
      
       * Give user better message if precise is not supported, from David Ahern.
      
       * Try to find cross-built objdump path by using the session environment
         information in the perf.data file header, from Irina Tirdea, original
         patch and idea by Namhyung Kim.
      
       * Diplays more output on features check for make V=1, so that one can figure
         out what is happening by looking at gcc output, etc. From Jiri Olsa.
      
       * Account the nr_entries in rblist properly, fix by Suzuki K. Poulose.
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      6ca2a9c6
  3. 24 Oct, 2012 29 commits