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From: Namhyung Kim <namhyung@kernel.org>
To: Andrey Wagin <avagin@gmail.com>
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>
Subject: Re: [PATCH 0/4] perf: Teach perf tool to profile sleep times (v2)
References: <1344344165-369636-1-git-send-email-avagin@openvz.org>
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	<CANaxB-xAWtj8nU0WiE0aV_WHde_iX=rseU9NwwN=VTHOZYW=JQ@mail.gmail.com>
Date: Wed, 08 Aug 2012 14:30:53 +0900
In-Reply-To: <CANaxB-xAWtj8nU0WiE0aV_WHde_iX=rseU9NwwN=VTHOZYW=JQ@mail.gmail.com>
	(Andrey Wagin's message of "Wed, 8 Aug 2012 09:02:18 +0400")
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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
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