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Groups > linux.kernel > #1306346
| From | Taeung Song <treeze.taeung@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v14 09/23] perf config: Document variables for 'report' section in man page |
| Date | 2016-01-11 15:50 +0100 |
| Message-ID | <qPLXd-3He-31@gated-at.bofh.it> (permalink) |
| References | <qPLNv-3Dk-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Explain 'report' section's variables.
'percent-limit', 'queue-size' and 'children'.
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
---
tools/perf/Documentation/perf-config.txt | 34 ++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
index 2f965e0..ef4d68f 100644
--- a/tools/perf/Documentation/perf-config.txt
+++ b/tools/perf/Documentation/perf-config.txt
@@ -372,6 +372,40 @@ 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 same as call-graph.threshold but works for
+ histogram entries. Entries have overhead lower than this percentage
+ will not be printed. Default is 0. If percent-limit is 10,
+ entries which have more than 10% of overhead will be printed only.
+
+ report.queue-size::
+ This option is to setup the maximum allocation size of internal
+ event queue for ordering events. Default is 0, meaning no limit.
+
+ report.children::
+ The children means that 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.
+ If it is 'true', event group view can be enabled by default i.e.
+
+ # 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]
--
2.5.0
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[PATCH v14 00/23] perf config: Add functionalities into perf-config and document config info Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:40 +0100 [PATCH v14 21/23] perf config: Add 'set' feature Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:40 +0100 [PATCH v14 01/23] perf config: Document variables for 'colors' section in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:40 +0100 [PATCH v14 04/23] perf config: Document variables for 'annotate' section in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:40 +0100 [PATCH v14 23/23] perf config: Add a option 'remove' to perf-config Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:40 +0100 [PATCH v14 06/23] perf config: Document 'hist.percentage' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 14/23] perf config: Document 'record.build-id' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 10/23] perf config: Document 'top.children' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 17/23] perf config: Add 'list-all' option to perf-config Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 11/23] perf config: Document 'man.viewer' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 08/23] perf config: Document variables for 'call-graph' section in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 07/23] perf config: Document 'ui.show-headers' variable in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 12/23] perf config: Document 'pager.<subcommand>' variables in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 09/23] perf config: Document variables for 'report' section in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100 [PATCH v14 02/23] perf config: Document variables for 'tui' and 'gtk' sections in man page Taeung Song <treeze.taeung@gmail.com> - 2016-01-11 15:50 +0100
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