[PATCHSET 00/13] perf tools: Update on filtered entries' percentage output (v6)

[Namhyung Kim <namhyung@kernel.org>]

Hello,

I added --percentage option to perf report to control display of
percentage of filtered entries.

 usage: perf report [<options>]

        --percentage <relative|absolute>
                          how to display percentage of filtered entries

"relative" means it's relative to filtered entries only so that the
sum of shown entries will be always 100%.  "absolute" means it retains
original value before and after the filter applied.  In patch 8/8, I
made the "absolute" as default since it makes more sense IMHO.
    
      $ perf report -s comm
      # Overhead       Command
      # ........  ............
      #
          74.19%           cc1
           7.61%           gcc
           6.11%            as
           4.35%            sh
           4.14%          make
           1.13%        fixdep
      ...
    
      $ perf report -s comm -c cc1,gcc --percentage absolute
      # Overhead       Command
      # ........  ............
      #
          74.19%           cc1
           7.61%           gcc
    
      $ perf report -s comm -c cc1,gcc --percentage relative
      # Overhead       Command
      # ........  ............
      #
          90.69%           cc1
           9.31%           gcc
    
Note that it has zero effect if no filter was applied.

 * changes in v6:
  - fix a bug in --stdio group report
  - reuse __hpp__fmt() function in TUI/GTK
  - add Acked-by from Jiri

 * changes in v5:
  - fix 0 samples in relative percent output (Jiri)
  - factor hists__total_period function (Jiri)
  - share config parsing code with option parser (Jiri)

 * changes in v4:
  - support perf top and perf diff also  (Jiri)
  - add HIST_FILTER__HOST/GUEST  (Jiri)
  - retain both of filtered and total stats  (Arnaldo)
  - add 'F' hotkey on TUI  (Jiri)
  - rename config variable to have "hist." prefix


You can get this on the 'perf/percentage-v6' branch in my tree

  git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git

Any comments are welcome, thanks
Namhyung


Namhyung Kim (13):
  perf ui/stdio: Fix invalid output on event group report
  perf ui/gtk: Reuse generic __hpp__fmt() code
  perf ui/hists: Pass struct hpp to print functions
  perf ui/tui: Reuse generic __hpp__fmt() code
  perf tools: Pass evsel to hpp->header/width functions explicitly
  perf tools: Count periods of filtered entries separately
  perf hists: Add support for showing relative percentage
  perf report: Add --percentage option
  perf top: Add --percentage option
  perf diff: Add --percentage option
  perf tools: Add hist.percentage config option
  perf ui/tui: Add 'F' hotkey to toggle percentage output
  perf tools: Show absolute percentage by default

 tools/perf/Documentation/perf-diff.txt   |  21 +++-
 tools/perf/Documentation/perf-report.txt |  24 +++--
 tools/perf/Documentation/perf-top.txt    |  18 +++-
 tools/perf/builtin-diff.c                |  42 ++++++--
 tools/perf/builtin-report.c              |  24 ++++-
 tools/perf/builtin-top.c                 |   2 +
 tools/perf/ui/browsers/hists.c           | 161 ++++++++++++++-----------------
 tools/perf/ui/gtk/hists.c                |  89 ++++-------------
 tools/perf/ui/hist.c                     | 159 ++++++++++++++++++++----------
 tools/perf/ui/stdio/hist.c               |  11 +--
 tools/perf/util/config.c                 |   4 +
 tools/perf/util/event.c                  |  22 ++---
 tools/perf/util/hist.c                   |  65 +++++++++----
 tools/perf/util/hist.h                   |  39 +++++++-
 tools/perf/util/symbol.h                 |   5 +-
 15 files changed, 406 insertions(+), 280 deletions(-)

-- 
1.7.11.7