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| author |   Stanislav Fomichev <stfomichev@yandex-team.ru> | 2014-07-08 20:03:43 +0400 |
|---|---|---|
| committer |   Jiri Olsa <jolsa@kernel.org> | 2014-07-10 00:22:54 +0200 |
| commit | d243144af0b52fc5164a0823194f29a5979e236c (patch) | |
| tree | 85dbbc2db11764cebf06856246884c9b60834dc5 /tools/perf/Documentation/perf-timechart.txt | |
| parent | perf timechart: Conditionally update start_time on fork (diff) | |
| download | linux-dev-d243144af0b52fc5164a0823194f29a5979e236c.tar.xz linux-dev-d243144af0b52fc5164a0823194f29a5979e236c.zip | |
perf timechart: Add more options to IO mode
--io-skip-eagain - don't show EAGAIN errors
--io-min-time - make small io bursts visible
--io-merge-dist - merge adjacent events
Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/n/1404835423-23098-5-git-send-email-stfomichev@yandex-team.ru
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools/perf/Documentation/perf-timechart.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-timechart.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt index ec6b46c7bca0..df98d1c82688 100644 --- a/tools/perf/Documentation/perf-timechart.txt +++ b/tools/perf/Documentation/perf-timechart.txt @@ -64,6 +64,19 @@ TIMECHART OPTIONS duration or tasks with given name. If number is given it's interpreted as number of nanoseconds. If non-numeric string is given it's interpreted as task name. +--io-skip-eagain:: + Don't draw EAGAIN IO events. +--io-min-time=<nsecs>:: + Draw small events as if they lasted min-time. Useful when you need + to see very small and fast IO. It's possible to specify ms or us + suffix to specify time in milliseconds or microseconds. + Default value is 1ms. +--io-merge-dist=<nsecs>:: + Merge events that are merge-dist nanoseconds apart. + Reduces number of figures on the SVG and makes it more render-friendly. + It's possible to specify ms or us suffix to specify time in + milliseconds or microseconds. + Default value is 1us. RECORD OPTIONS -------------- |