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
...
v3 changes:
- added doc for metrics file in perf stat man page
- reporting error line number now
- changed '#' style comment to C way with '//'
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 (4):
perf expr: Add parsing support for multiple expressions
perf expr: Allow comments in custom metric file
perf stat: Add --metrics-file option
perf expr: Report line number with error
tools/perf/Documentation/perf-stat.txt | 77
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
tools/perf/builtin-stat.c | 7 +++++--
tools/perf/tests/expr.c | 18 ++++++++++++++++++
tools/perf/util/expr.c | 6 ++++++
tools/perf/util/expr.h | 21 +++++++++++++++++++--
tools/perf/util/expr.l | 34 ++++++++++++++++++++++++++++++++++
tools/perf/util/expr.y | 21 +++++++++++++++++----
tools/perf/util/metricgroup.c | 70
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------
tools/perf/util/metricgroup.h | 3 ++-
tools/perf/util/stat.h | 1 +
10 files changed, 242 insertions(+), 16 deletions(-)
