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authorNamhyung Kim <namhyung@kernel.org>2017-02-10 16:36:12 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-02-13 14:29:37 -0300
commitd49dd15d69731589de4436a6dcfca59567320fdf (patch)
treee81c01b951fc5a03f9d2ced31ec6fc076ff207c8 /tools/perf/Documentation/perf-diff.txt
parenta1668c25a8e1b53d00b2997ef5bc5e25c7a77235 (diff)
perf diff: Add diff.order config option
In many cases, I need to look at differences between two data so I often used the -o option to sort the result base on the difference first. It'd be nice to have a config option to set it by default. The diff.order config option is to set the default value of -o/--order option. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Taeung Song <treeze.taeung@gmail.com> Link: http://lkml.kernel.org/r/20170210073614.24584-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-diff.txt')
-rw-r--r--tools/perf/Documentation/perf-diff.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-diff.txt b/tools/perf/Documentation/perf-diff.txt
index af80284cd2f6..7c014c9934bb 100644
--- a/tools/perf/Documentation/perf-diff.txt
+++ b/tools/perf/Documentation/perf-diff.txt
@@ -99,7 +99,11 @@ OPTIONS
-o::
--order::
- Specify compute sorting column number.
+ Specify compute sorting column number. 0 means sorting by baseline
+ overhead (default) and 1 means sorting by computed value of column 1
+ (data from the first file other base baseline). Values more than 1
+ can be used only if enough data files are provided.
+ The default value can be set using the diff.order config option.
--percentage::
Determine how to display the overhead percentage of filtered entries.