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| author | Namhyung Kim <namhyung@kernel.org> | 2013-10-30 17:05:55 +0900 |
|---|---|---|
| committer | Jiri Olsa <jolsa@kernel.org> | 2014-06-01 14:35:04 +0200 |
| commit | 793aaaabb79803a0154fc6a98c472a29bb6d5cc9 (patch) | |
| tree | 7e0f3b9584830fb4fabb43dabde567af71dbd6d8 /tools/perf/Documentation | |
| parent | 77284de326e6d8c3b8e866cda5b415c86b522e61 (diff) | |
| download | op-kernel-dev-793aaaabb79803a0154fc6a98c472a29bb6d5cc9.zip op-kernel-dev-793aaaabb79803a0154fc6a98c472a29bb6d5cc9.tar.gz | |
perf report: Add --children option
The --children option is for showing accumulated overhead (period)
value as well as self overhead.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arun Sharma <asharma@fb.com>
Tested-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1401335910-16832-16-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index a1b5185..cefdf43 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -111,7 +111,7 @@ OPTIONS --fields=:: Specify output field - multiple keys can be specified in CSV format. Following fields are available: - overhead, overhead_sys, overhead_us, sample and period. + overhead, overhead_sys, overhead_us, overhead_children, sample and period. Also it can contain any sort key(s). By default, every sort keys not specified in -F will be appended @@ -163,6 +163,11 @@ OPTIONS Default: fractal,0.5,callee,function. +--children:: + Accumulate callchain of children to parent entry so that then can + show up in the output. The output will have a new "Children" column + and will be sorted on the data. It requires callchains are recorded. + --max-stack:: Set the stack depth limit when parsing the callchain, anything beyond the specified depth will be ignored. This is a trade-off |
