From 2775de0b115a6ffab7882c45c755005ee0ac0122 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Mon, 26 Apr 2021 18:37:15 -0700 Subject: 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 Signed-off-by: Namhyung Kim Tested-by: Arnaldo Carvalho de Melo Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Mark Rutland Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427013717.1651674-5-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-report.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'tools/perf/Documentation/perf-report.txt') 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 -- cgit v1.2.3-59-g8ed1b