[PATCHv2 00/30] 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 25388,25442 -a
  ^C
   Performance counter stats for process id '25388,25442':

  cat-25388               100,122      cycles
  vim-25442             4,167,876      cycles
  cat-25388                20,080      instructions
  vim-25442             3,232,735      instructions

         6.057130572 seconds time elapsed


Also works under interval mode:

  $ perf stat  -e cycles,instructions --per-task -p 25388,25442 -a -I 1000
  #           time task                      counts unit events
       1.000190002 cat-25388                54,196      cycles
       1.000190002 vim-25442                     0      cycles
       1.000190002 cat-25388                11,660      instructions
       1.000190002 vim-25442                     0      instructions
       2.000742579 cat-25388                55,247      cycles
       2.000742579 vim-25442             1,752,951      cycles
       2.000742579 cat-25388                11,872      instructions
       2.000742579 vim-25442             1,238,512      instructions
       3.001057871 cat-25388                     0      cycles
       3.001057871 vim-25442                     0      cycles
       3.001057871 cat-25388                     0      instructions
       3.001057871 vim-25442                     0      instructions
  ^C     3.242519732 cat-25388                     0      cycles
       3.242519732 vim-25442                     0      cycles
       3.242519732 cat-25388                     0      instructions
       3.242519732 vim-25442                     0      instructions


v2 changes:
  - renamed xyarray__zero to xyarray__reset
  - using atomic_t for cpu_map/thread_map refcnt
  - moving all stat functions into stat object
  - using init_stats to initialize 'struct stats*'
  - change TASK-$pid output into $comm-$pid
  - updated doc with --per-task option

thanks for comments,
jirka


---
Jiri Olsa (30):
      perf tools: Introduce xyarray__reset function
      perf tools: Add thread_map__(alloc|realloc) helpers
      perf tools: Change thread_map::map into struct
      perf tools: Add comm string into struct thread_map
      perf tests: Add thread_map object tests
      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 tools: Move perf_evsel__(alloc|free|reset)_counts into stat object
      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 stat object
      perf stat: Move perf_evsel__(alloc|free)_prev_raw_counts into stat 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: Using init_stats instead of memset
      perf stat: Introduce print_counters function
      perf stat: Introduce --per-task option

 tools/perf/Documentation/perf-stat.txt      |   3 +
 tools/perf/builtin-stat.c                   | 398 ++++++++++++++--------------
 tools/perf/builtin-trace.c                  |   4 +-
 tools/perf/tests/Build                      |   1 +
 tools/perf/tests/builtin-test.c             |   4 +
 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  |   9 +-
 tools/perf/tests/openat-syscall-tp-fields.c |   2 +-
 tools/perf/tests/openat-syscall.c           |   6 +-
 tools/perf/tests/switch-tracking.c          |   4 +-
 tools/perf/tests/tests.h                    |   1 +
 tools/perf/tests/thread-map.c               |  28 ++
 tools/perf/util/auxtrace.c                  |   4 +-
 tools/perf/util/cpumap.c                    |  25 +-
 tools/perf/util/cpumap.h                    |   6 +-
 tools/perf/util/event.c                     |   6 +-
 tools/perf/util/evlist.c                    |  38 ++-
 tools/perf/util/evlist.h                    |   1 -
 tools/perf/util/evsel.c                     |  47 ++--
 tools/perf/util/evsel.h                     |  43 ++-
 tools/perf/util/parse-events.c              |   5 +-
 tools/perf/util/python-ext-sources          |   2 +
 tools/perf/util/python.c                    |   4 +-
 tools/perf/util/record.c                    |   4 +-
 tools/perf/util/session.c                   |   2 +-
 tools/perf/util/stat.c                      | 134 ++++++++++
 tools/perf/util/stat.h                      |  46 ++++
 tools/perf/util/svghelper.c                 |   2 +-
 tools/perf/util/thread_map.c                | 131 +++++++--
 tools/perf/util/thread_map.h                |  17 +-
 tools/perf/util/xyarray.c                   |   8 +
 tools/perf/util/xyarray.h                   |   2 +
 35 files changed, 672 insertions(+), 329 deletions(-)
 create mode 100644 tools/perf/tests/thread-map.c