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Date: Thu, 9 Aug 2012 16:56:56 +0400
Message-ID: <CANaxB-zWt97Vq7nfeDXeU-A84jUki+cuOLhrv2aRfah6QBuTFg@mail.gmail.com>
Subject: Re: [PATCH 0/4] perf: Teach perf tool to profile sleep times (v2)
From: Andrey Wagin <avagin@gmail.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
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2012/8/9 Namhyung Kim <namhyung@kernel.org>:
>>>>> 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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