Messages in this thread | | | Date | Wed, 8 Aug 2012 09:02:18 +0400 | Subject | Re: [PATCH 0/4] perf: Teach perf tool to profile sleep times (v2) | From | Andrey Wagin <> |
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2012/8/8 Namhyung Kim <namhyung@kernel.org>: >> >> $ ./perf record -e sched:sched_stat_sleep -e sched:sched_switch \ >> -e sched:sched_process_exit -gP -o ~/perf.data.raw ~/foo
Actually this string is not completed, because sched:sched_switch should be filtered by state.
>> [ perf record: Woken up 1 times to write data ] >> [ perf record: Captured and wrote 0.015 MB /root/perf.data.raw (~661 samples) ] >> $ ./perf inject -v -s -i ~/perf.data.raw -o ~/perf.data >> $ ./perf report -i ~/perf.data > > The usage like this is too specific and hard to use IMHO. How about > putting it somehow into perf sched or new command? > > /me don't have an idea though. :-) >
I'm going to add a script, so the usage will look like this: $ perf script record sched-stat -e sched:sched_stat_sleep <command> This command will collect sched_stat_* and proper sched_switch events $ perf script report sched-stat
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