Messages in this thread Patch in this message | | | From | Taeung Song <> | Subject | [PATCH v10 08/22] perf config: Document 'hist.percentage' variable in man page | Date | Mon, 9 Nov 2015 11:33:01 +0900 |
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Explain 'hist.percentage' variable.
Cc: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Taeung Song <treeze.taeung@gmail.com> --- tools/perf/Documentation/perf-config.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index e47be25..b04c2bc 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -263,6 +263,23 @@ help.*:: <perf sub-command> can be record, script, report or inject or: perf-with-kcore fix_buildid_cache_permissions +hist.*:: + hist.percentage:: + This option control a way to calcurate overhead of filtered entries - + that means the value of this option is effective only if there's a + filter (by comm, dso or symbol name). Suppose a following example: + + Overhead Symbols + ........ ....... + 33.33% foo + 33.33% bar + 33.33% baz + + This is an original overhead and we'll filter out the first 'foo' + entry. The value of 'relative' would increase the overhead of 'bar' + and 'baz' to 50.00% for each, while 'absolute' would show their + current overhead (33.33%). + SEE ALSO -------- linkperf:perf[1] -- 1.9.1
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