[PATCHv4 00/27] perf stat: Introduce --per-thread 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-thread -p 30190,30242
  ^C
   Performance counter stats for process id '30190,30242':

               cat-30190                     0      cycles
               yes-30242         3,842,525,421      cycles
               cat-30190                     0      instructions
               yes-30242        10,370,817,010      instructions

         1.143155657 seconds time elapsed


Also works under interval mode:

  $ perf stat  -e cycles,instructions --per-thread -p 30190,30242 -I 1000
  #           time             comm-pid                  counts unit events
       1.000073435              cat-30190                89,058      cycles
       1.000073435              yes-30242         3,360,786,902      cycles                     (100.00%)
       1.000073435              cat-30190                14,066      instructions
       1.000073435              yes-30242         9,069,937,462      instructions
       2.000204830              cat-30190                     0      cycles
       2.000204830              yes-30242         3,351,667,626      cycles
       2.000204830              cat-30190                     0      instructions
       2.000204830              yes-30242         9,045,796,885      instructions
  ^C     2.771286639              cat-30190                     0      cycles
       2.771286639              yes-30242         2,593,884,166      cycles
       2.771286639              cat-30190                     0      instructions
       2.771286639              yes-30242         7,001,171,191      instructions


Available in here:
  git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
  perf/per_thread

v4 changes:
  - add thread_map__set_(pid|comm) interface
  - several fixes for task comm string reading
  - added perf_evlist__reset_stats function

v3 changes:
  - some patches already pulled in, rebased on latest acme's perf/core
  - fixed cpu_map__get/thread_map__get to accept NULL map
  - renamed propagate_maps to perf_evlist__propagate_maps
  - renamed --per-task option to --per-thread
  - changed 'task-pid' header output to 'comm-pid'

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,
jirka
---
Jiri Olsa (27):
      perf tools: Change thread_map::map into struct
      perf tools: Add comm string into struct thread_map
      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 tests: Add thread_map object tests
      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: Introduce perf_evlist__reset_stats
      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|reset)_stats into stat 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-thread option

 tools/perf/Documentation/perf-stat.txt      |   4 +
 tools/perf/builtin-stat.c                   | 404 ++++++++++++++--------------
 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  |   8 +-
 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                    |  26 +-
 tools/perf/util/cpumap.h                    |   6 +-
 tools/perf/util/event.c                     |   6 +-
 tools/perf/util/evlist.c                    |  39 ++-
 tools/perf/util/evlist.h                    |   1 -
 tools/perf/util/evsel.c                     |  28 +-
 tools/perf/util/evsel.h                     |  40 ++-
 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.c                      | 132 ++++++++-
 tools/perf/util/stat.h                      |  47 +++-
 tools/perf/util/svghelper.c                 |   2 +-
 tools/perf/util/thread_map.c                | 118 ++++++--
 tools/perf/util/thread_map.h                |  35 ++-
 33 files changed, 661 insertions(+), 319 deletions(-)
 create mode 100644 tools/perf/tests/thread-map.c
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