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authorNamhyung Kim <namhyung@kernel.org>2015-08-09 15:45:23 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-08-10 17:20:26 -0300
commit09af2a553577a6e53e40011a910be0f27ce56f3e (patch)
tree7b42882057118e4d8f5f8a847f644ae8cd206123 /tools/perf/Documentation
parent31191a85fb875cf123cea56bbfd34f4b941f3c79 (diff)
perf record: Support per-event freq term
Now perf can set per-event value of time and (sampling) period. But I guess most users like me just want to set frequency rather than period. So add the 'freq' term in the event parser. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1439102724-14079-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-record.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 0d852d1bc90f..afbe45ef7e3e 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -49,6 +49,7 @@ OPTIONS
These params can be used to overload default config values per event.
Here is a list of the params.
- 'period': Set event sampling period
+ - 'freq': Set event sampling frequency
- 'time': Disable/enable time stamping. Acceptable values are 1 for
enabling time stamping. 0 for disabling time stamping.
The default is 1.