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authorNamhyung Kim <namhyung@kernel.org>2013-10-30 17:05:55 +0900
committerJiri Olsa <jolsa@kernel.org>2014-06-01 14:35:04 +0200
commit793aaaabb79803a0154fc6a98c472a29bb6d5cc9 (patch)
tree7e0f3b9584830fb4fabb43dabde567af71dbd6d8 /tools/perf/Documentation
parent77284de326e6d8c3b8e866cda5b415c86b522e61 (diff)
downloadop-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.txt7
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
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