From: Jiri Olsa <jolsa@redhat.com>
To: David Ahern <dsahern@gmail.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
Date: Thu, 26 Sep 2013 20:23:34 +0200 [thread overview]
Message-ID: <20130926182334.GC9121@krava.brq.redhat.com> (raw)
In-Reply-To: <524478F2.8040609@gmail.com>
On Thu, Sep 26, 2013 at 12:12:02PM -0600, David Ahern wrote:
> 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.
ok, np
jirka
next prev parent reply other threads:[~2013-09-26 18:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-23 2:05 David Ahern
2013-09-26 17:51 ` Jiri Olsa
2013-09-26 18:12 ` David Ahern
2013-09-26 18:23 ` Jiri Olsa [this message]
2013-09-26 23:17 ` David Ahern
2013-09-27 6:29 ` Ingo Molnar
2013-09-27 2:24 ` Namhyung Kim
2013-10-09 13:33 ` Jiri Olsa
2013-10-09 13:46 ` David Ahern
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