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

From: Andrey Wagin
Date: Thu Aug 09 2012 - 08:56:52 EST


2012/8/9 Namhyung Kim <namhyung@xxxxxxxxxx>:
>>>>> 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?
>>
>> No. My method works for all kind of sched_stat_* events, so you need
>> to specify an event type which should be traced.
>
> Ok, so can it be like 'perf script record sched-stat -t sleep <command>'?

Yes, it can. Thanks for your feedback. I'm going to write the script,
when this series will be committed.
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