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Groups > linux.kernel > #1330160
| From | tip-bot for Taeung Song <tipbot@zytor.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [tip:perf/core] perf config: Document variables for 'report' section in man page |
| Date | 2016-02-09 13:20 +0100 |
| Message-ID | <r0fqY-3Sj-55@gated-at.bofh.it> (permalink) |
| References | <qYooH-6GV-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Commit-ID: 806cb95bb6cb25105b37d971d9916105898cb6fe
Gitweb: http://git.kernel.org/tip/806cb95bb6cb25105b37d971d9916105898cb6fe
Author: Taeung Song <treeze.taeung@gmail.com>
AuthorDate: Thu, 4 Feb 2016 18:25:08 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 4 Feb 2016 11:44:25 -0300
perf config: Document variables for 'report' section in man page
Explain 'report' section's variables:
'percent-limit', 'queue-size' and 'children'.
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1454577913-16401-4-git-send-email-treeze.taeung@gmail.com
[ Fix some grammar issues, add some more info ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-config.txt | 36 ++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
index 42310ae..f38f46f 100644
--- a/tools/perf/Documentation/perf-config.txt
+++ b/tools/perf/Documentation/perf-config.txt
@@ -369,6 +369,42 @@ call-graph.*::
This is a maximum number of lines of callchain printed for a single
histogram entry. Default is 0 which means no limitation.
+report.*::
+ report.percent-limit::
+ This one is mostly the same as call-graph.threshold but works for
+ histogram entries. Entries having an overhead lower than this
+ percentage will not be printed. Default is '0'. If percent-limit
+ is '10', only entries which have more than 10% of overhead will be
+ printed.
+
+ report.queue-size::
+ This option sets up the maximum allocation size of the internal
+ event queue for ordering events. Default is 0, meaning no limit.
+
+ report.children::
+ 'Children' means functions called from another function.
+ If this option is true, 'perf report' cumulates callchains of children
+ and show (accumulated) total overhead as well as 'Self' overhead.
+ Please refer to the 'perf report' manual. The default is 'true'.
+
+ report.group::
+ This option is to show event group information together.
+ Example output with this turned on, notice that there is one column
+ per event in the group, ref-cycles and cycles:
+
+ # group: {ref-cycles,cycles}
+ # ========
+ #
+ # Samples: 7K of event 'anon group { ref-cycles, cycles }'
+ # Event count (approx.): 6876107743
+ #
+ # Overhead Command Shared Object Symbol
+ # ................ ....... ................. ...................
+ #
+ 99.84% 99.76% noploop noploop [.] main
+ 0.07% 0.00% noploop ld-2.15.so [.] strcmp
+ 0.03% 0.00% noploop [kernel.kallsyms] [k] timerqueue_del
+
SEE ALSO
--------
linkperf:perf[1]
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[PATCH 0/8] perf config: Document config variables in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[PATCH 1/8] perf config: Document 'ui.show-headers' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document 'ui.show-headers' variable in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
[PATCH 4/8] perf config: Document 'top.children' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document 'top.children' variable in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
[PATCH 8/8] perf config: Document 'record.build-id' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document 'record.build-id' variable in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
[PATCH 7/8] perf config: Document 'kmem.default' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document 'kmem.default' variable in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
[PATCH 5/8] perf config: Document 'man.viewer' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document 'man.viewer' variable in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
[PATCH 2/8] perf config: Document variables for 'call-graph' section in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document variables for 'call-graph' section in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
[PATCH 3/8] perf config: Document variables for 'report' section in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document variables for 'report' section in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
[PATCH 6/8] perf config: Document 'pager.<subcommand>' variables in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-04 10:30 +0100
[tip:perf/core] perf config: Document 'pager.<subcommand>' variables in man page tip-bot for Taeung Song <tipbot@zytor.com> - 2016-02-09 13:20 +0100
Re: [PATCH 0/8] perf config: Document config variables in man page Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-02-04 16:00 +0100
Re: [PATCH 0/8] perf config: Document config variables in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-05 11:50 +0100
Re: [PATCH 0/8] perf config: Document config variables in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-05 12:10 +0100
Re: [PATCH 0/8] perf config: Document config variables in man page Namhyung Kim <namhyung@kernel.org> - 2016-02-05 14:10 +0100
Re: [PATCH 0/8] perf config: Document config variables in man page Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com> - 2016-02-05 14:40 +0100
Re: [PATCH 0/8] perf config: Document config variables in man page Namhyung Kim <namhyung@kernel.org> - 2016-02-05 14:50 +0100
Re: [PATCH 0/8] perf config: Document config variables in man page Taeung Song <treeze.taeung@gmail.com> - 2016-02-05 14:50 +0100
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