[RFC/PATCH 00/25] perf stat: Introduce --per-task option

[Jiri Olsa <jolsa@kernel.org>]

hi,
adding the possibility to display stat data per thread.
Allowing following commands and output:

  $ perf stat -e cycles,instructions --per-task -p 12451,16173
  ^C
   Performance counter stats for process id '12451,16173':

  TASK-12451                77,784      cycles
  TASK-16173                64,809      cycles
  TASK-12451                14,432      instructions
  TASK-16173                14,452      instructions

         3.854957122 seconds time elapsed

Also woks under interval mode:

  $ ./perf stat -e cycles,instructions --per-task -p 16431,16173 -I 1000
  #           time task                      counts unit events
       1.000085816 TASK-16173                     0      cycles
       1.000085816 TASK-16431         3,358,360,926      cycles
       1.000085816 TASK-16173                     0      instructions
       1.000085816 TASK-16431         9,062,422,086      instructions
       2.000212262 TASK-16173                65,386      cycles
       2.000212262 TASK-16431         3,349,355,309      cycles
       2.000212262 TASK-16173                12,151      instructions
       2.000212262 TASK-16431         9,039,401,422      instructions
       3.000333402 TASK-16173                62,797      cycles
       3.000333402 TASK-16431         3,357,140,183      cycles
       3.000333402 TASK-16173                12,208      instructions
       3.000333402 TASK-16431         9,058,080,762      instructions
  ^C     3.375949851 TASK-16173                     0      cycles
       3.375949851 TASK-16431         1,264,764,804      cycles
       3.375949851 TASK-16173                     0      instructions
       3.375949851 TASK-16431         3,414,532,317      instructions

thanks for comments,
jirka


---
Jiri Olsa (25):
      perf tools: Fix python code with missing stat dependency
      perf tools: Introduce xyarray__zero function
      perf tools: Add reference counting for cpu_map object
      perf tools: Add reference counting for thread_map object
      perf tools: Propagate cpu maps through the evlist
      perf tools: Propagate thread maps through the evlist
      perf tools: Make perf_evsel__(nr_)cpus generic
      perf stat: Introduce perf_counts__(alloc|free|reset) functions
      perf stat: Introduce perf_counts function
      perf stat: Use xyarray for cpu evsel counts
      perf stat: Make stats work over the thread dimension
      perf stat: Rename struct perf_counts::cpu member to values
      perf stat: Move perf_evsel__(alloc|free|reset)_stat_priv into evsel object
      perf stat: Move perf_evsel__(alloc|free)_prev_raw_counts into evsel object
      perf stat: Move perf_evlist__(alloc|free)_stats into evlist object
      perf stat: Introduce perf_evsel__alloc_stats function
      perf stat: Introduce perf_evsel__read function
      perf stat: Introduce read_counters function
      perf stat: Separate counters reading and processing
      perf stat: Move zero_per_pkg into counter process code
      perf stat: Move perf_stat initialization counter process code
      perf stat: Remove perf_evsel__read_cb function
      perf stat: Rename print_interval to process_interval
      perf stat: Introduce print_counters function
      perf stat: Introduce --per-task option

 tools/perf/builtin-stat.c                  | 388 +++++++++++++++++++++++++++++--------------------------------
 tools/perf/tests/code-reading.c            |   4 +-
 tools/perf/tests/keep-tracking.c           |   4 +-
 tools/perf/tests/mmap-basic.c              |   4 +-
 tools/perf/tests/mmap-thread-lookup.c      |   2 +-
 tools/perf/tests/openat-syscall-all-cpus.c |   8 +-
 tools/perf/tests/openat-syscall.c          |   6 +-
 tools/perf/tests/switch-tracking.c         |   4 +-
 tools/perf/util/cpumap.c                   |  24 +++-
 tools/perf/util/cpumap.h                   |   5 +-
 tools/perf/util/evlist.c                   |  61 +++++++++-
 tools/perf/util/evlist.h                   |   2 +
 tools/perf/util/evsel.c                    | 128 ++++++++++++++++----
 tools/perf/util/evsel.h                    |  48 ++++++--
 tools/perf/util/parse-events.c             |   5 +-
 tools/perf/util/python-ext-sources         |   1 +
 tools/perf/util/python.c                   |   4 +-
 tools/perf/util/record.c                   |   4 +-
 tools/perf/util/session.c                  |   2 +-
 tools/perf/util/stat.h                     |   1 +
 tools/perf/util/svghelper.c                |   2 +-
 tools/perf/util/thread_map.c               |  28 ++++-
 tools/perf/util/thread_map.h               |   6 +-
 tools/perf/util/xyarray.c                  |   8 ++
 tools/perf/util/xyarray.h                  |   2 +
 25 files changed, 484 insertions(+), 267 deletions(-)