Re: [PATCH 0/4] perf: Teach perf tool to profile sleep times (v2)

[Namhyung Kim <namhyung@kernel.org>]

On Wed, 8 Aug 2012 09:02:18 +0400, Andrey Wagin wrote:
> 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

???  That means '-e sched:sched_stat_sleep' part can be removed from
command line, no?

Thanks,
Namhyung