From: Ingo Molnar <mingo@elte.hu>
To: Mike Galbraith <efault@gmx.de>
Cc: Jason Garrett-Glaser <darkshikari@gmail.com>,
Kasper Sandberg <lkml@metanurb.dk>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
LKML Mailinglist <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: x264 benchmarks BFS vs CFS
Date: Fri, 18 Dec 2009 14:06:42 +0100 [thread overview]
Message-ID: <20091218130642.GA17033@elte.hu> (raw)
In-Reply-To: <1261140546.15591.5.camel@marge.simson.net>
* Mike Galbraith <efault@gmx.de> wrote:
> > I'm personally curious as to what kind of scheduler issues this results
> > in--I haven't done any BFS vs CFS tests with this option enabled yet.
>
> I'll look for x264 source, and patch/piddle.
btw., would be nice to look at it via tools/perf/ as well:
perf stat --repeat 3 ...
to see the basic hardware utilization (cycles/cache-misses, branch execution
rate, instructions, etc.) and the basic parallelism metrics, at a glance.
i suspect "perf stat -e L1-icache-loads -e L1-icache-load-misses" would give
us an even more detailed picture.
Ingo
next prev parent reply other threads:[~2009-12-18 13:06 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-17 9:33 x264 benchmarks BFS vs CFS Kasper Sandberg
2009-12-17 10:42 ` Jason Garrett-Glaser
2009-12-17 10:53 ` Ingo Molnar
2009-12-17 11:00 ` Kasper Sandberg
2009-12-17 12:08 ` Ingo Molnar
2009-12-17 12:35 ` Kasper Sandberg
2009-12-17 15:47 ` Arjan van de Ven
2009-12-17 13:30 ` Mike Galbraith
2009-12-18 10:54 ` Kasper Sandberg
2009-12-18 11:41 ` Mike Galbraith
2009-12-17 21:22 ` Thomas Fjellstrom
2009-12-18 10:56 ` Kasper Sandberg
2009-12-18 1:18 ` Jason Garrett-Glaser
2009-12-18 5:23 ` Ingo Molnar
2009-12-18 7:30 ` Mike Galbraith
2009-12-18 10:11 ` Jason Garrett-Glaser
2009-12-18 12:49 ` Mike Galbraith
2009-12-18 13:06 ` Ingo Molnar [this message]
2009-12-18 13:36 ` Mike Galbraith
2009-12-18 13:53 ` Mike Galbraith
2009-12-18 10:57 ` Kasper Sandberg
2009-12-18 11:05 ` Jason Garrett-Glaser
2009-12-19 1:08 ` Con Kolivas
2009-12-19 4:03 ` Mike Galbraith
2009-12-19 17:36 ` Kasper Sandberg
2009-12-19 20:57 ` Mike Galbraith
2009-12-20 3:22 ` Andres Freund
2009-12-20 12:10 ` Kasper Sandberg
2009-12-20 13:09 ` Kasper Sandberg
2009-12-20 15:13 ` Mike Galbraith
2009-12-20 15:51 ` Mike Galbraith
2009-12-22 7:33 ` Jason Garrett-Glaser
2009-12-22 7:39 ` Jason Garrett-Glaser
2009-12-18 10:56 ` Kasper Sandberg
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