[PATCHv2 0/3] perf tools: Add support for user defined metric

[Jiri Olsa]

hi,
Joe asked for possibility to add user defined metrics. Given that
we already have metrics support, I added --metrics-file option that
allows to specify custom metrics.

  $ cat metrics
  # IPC
  mine1 = instructions / cycles;
  /* DECODED_ICACHE_UOPS% */
  mine2 = 100 * (idq.dsb_uops / \ (idq.ms_uops + idq.mite_uops + idq.dsb_uops + lsd.uops));

  $ sudo perf stat --metrics-file ./metrics -M mine1,mine2 --metric-only -a -I 1000
  #           time       insn per cycle                mine1                mine2
       1.000536263                0.71                   0.7                 41.4
       2.002069025                0.31                   0.3                 14.1
       3.003427684                0.27                   0.3                 14.8
       4.004807132                0.25                   0.2                 12.1
  ...

v2 changes:
  - add new --metrics-file option
  - rebased on current perf/core expression bison/flex enhancements

Also available in:
  git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
  perf/metric

thanks,
jirka


---
Jiri Olsa (3):
      perf expr: Add parsing support for multiple expressions
      perf expr: Allow comments in custom metric file
      perf stat: Add --metrics-file option

 tools/perf/Documentation/perf-stat.txt |  3 +++
 tools/perf/builtin-stat.c              |  7 +++++--
 tools/perf/tests/expr.c                | 13 +++++++++++++
 tools/perf/util/expr.c                 |  6 ++++++
 tools/perf/util/expr.h                 | 19 +++++++++++++++++--
 tools/perf/util/expr.l                 | 24 ++++++++++++++++++++++++
 tools/perf/util/expr.y                 | 13 ++++++++++++-
 tools/perf/util/metricgroup.c          | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------
 tools/perf/util/metricgroup.h          |  3 ++-
 tools/perf/util/stat.h                 |  1 +
 10 files changed, 142 insertions(+), 13 deletions(-)