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author | Namhyung Kim <namhyung@kernel.org> | 2021-04-26 18:37:15 -0700 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 10:30:59 -0300 |
commit | 2775de0b115a6ffab7882c45c755005ee0ac0122 (patch) | |
tree | d9d6685f1604c30137ff105cf974551c6af3ec99 /tools/perf/Documentation | |
parent | 55f754443890043956ee81431faa3c529309ba24 (diff) | |
download | linux-2775de0b115a6ffab7882c45c755005ee0ac0122.tar.gz |
perf report: Add --skip-empty option to suppress 0 event stat
To make the output more readable, I think it's better to remove 0's in the output. Also the dummy event has no event stats so it just wasts the space. Let's use the --skip-empty option to suppress it. $ perf report --stat --skip-empty Aggregated stats: TOTAL events: 16530 MMAP events: 226 COMM events: 1596 EXIT events: 2 THROTTLE events: 121 UNTHROTTLE events: 117 FORK events: 1595 SAMPLE events: 719 MMAP2 events: 12147 CGROUP events: 2 FINISHED_ROUND events: 2 THREAD_MAP events: 1 CPU_MAP events: 1 TIME_CONV events: 1 cycles stats: SAMPLE events: 719 Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210427013717.1651674-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r-- | tools/perf/Documentation/perf-report.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index f51f0000676e..24efc0583c93 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -571,6 +571,9 @@ include::itrace.txt[] sampled cycles 'Avg Cycles' - block average sampled cycles +--skip-empty:: + Do not print 0 results in the --stat output. + include::callchain-overhead-calculation.txt[] SEE ALSO |