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Date: Thu, 26 Sep 2013 12:12:02 -0600
From: David Ahern <dsahern@gmail.com>
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To: Jiri Olsa <jolsa@redhat.com>
CC: acme@ghostprotocols.net, linux-kernel@vger.kernel.org,
        Ingo Molnar <mingo@kernel.org>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Namhyung Kim <namhyung@kernel.org>, Mike Galbraith <efault@gmx.de>,
        Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH] perf record: mmap output file - RFC
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On 9/26/13 11:51 AM, Jiri Olsa wrote:
> but it's still faster, since we finally get perf a chance to sleep ;-)
>
> new time:
> 	real    0m30.392s
> 	user    0m0.041s
> 	sys     0m0.389s
>
> old time:
> 	real    0m32.235s
> 	user    0m3.080s
> 	sys     0m14.444s

excellent.

>
>
>> [ perf record: Captured and wrote 8.203 MB /tmp/perf.data (~358388 samples) ]
>>
>> Before I get too far down this path I wanted to get comments on the approach.
>
> I think it's worthwhile doing this

If you can toss it onto your queue to run through it other use cases -- 
like the 'make -j' on kernel builds. I am doing the same here and if all 
goes well I submit with some other patches next week.

Thanks,

David