diff options
| author | Namhyung Kim <[email protected]> | 2021-04-26 18:37:17 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2021-04-29 10:30:59 -0300 |
| commit | 462f57dbf9fa1fdcdeae2e0b19a667f7f9989bdb (patch) | |
| tree | bc6cab3bcc08b28a44254bd42d431acdb7b214d4 | |
| parent | 8f08cf3330da0582e7a51bd1b999c820147e19d1 (diff) | |
perf report: Print percentage of each event statistics
It's sometimes useful to see how many samples vs other events in the
data file with percent values.
$ perf report --stat
Aggregated stats:
TOTAL events: 20064
MMAP events: 239 ( 1.2%)
COMM events: 1518 ( 7.6%)
EXIT events: 1 ( 0.0%)
FORK events: 1517 ( 7.6%)
SAMPLE events: 4015 (20.0%)
MMAP2 events: 12769 (63.6%)
FINISHED_ROUND events: 2 ( 0.0%)
THREAD_MAP events: 1 ( 0.0%)
CPU_MAP events: 1 ( 0.0%)
TIME_CONV events: 1 ( 0.0%)
cycles stats:
SAMPLE events: 2475
instructions stats:
SAMPLE events: 1540
Suggested-by: Andi Kleen <[email protected]>
Reviewed-by: Andi Kleen <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/ui/stdio/hist.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c index d9e634406175..f36270485168 100644 --- a/tools/perf/ui/stdio/hist.c +++ b/tools/perf/ui/stdio/hist.c @@ -902,6 +902,7 @@ size_t events_stats__fprintf(struct events_stats *stats, FILE *fp, { int i; size_t ret = 0; + u32 total = stats->nr_events[0]; for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) { const char *name; @@ -912,7 +913,14 @@ size_t events_stats__fprintf(struct events_stats *stats, FILE *fp, if (skip_empty && !stats->nr_events[i]) continue; - ret += fprintf(fp, "%16s events: %10d\n", name, stats->nr_events[i]); + if (i && total) { + ret += fprintf(fp, "%16s events: %10d (%4.1f%%)\n", + name, stats->nr_events[i], + 100.0 * stats->nr_events[i] / total); + } else { + ret += fprintf(fp, "%16s events: %10d\n", + name, stats->nr_events[i]); + } } return ret; |