From: Steven Rostedt <rostedt@goodmis.org>
To: Mike Galbraith <efault@gmx.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Paul Turner <pjt@google.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Arnaldo Carvalho de Melo <acme@infradead.org>,
Clark Williams <clark@redhat.com>,
Andrew Theurer <habanero@us.ibm.com>
Subject: Re: [RFC] sched: The removal of idle_balance()
Date: Sun, 17 Feb 2013 16:54:49 -0500 [thread overview]
Message-ID: <1361138089.23152.141.camel@gandalf.local.home> (raw)
In-Reply-To: <1361085245.28353.3.camel@marge.simpson.net>
On Sun, 2013-02-17 at 08:14 +0100, Mike Galbraith wrote:
> (And puts a dent in x264 ultrafast)
>
> +SD_BALANCE_NEWIDLE
> encoded 600 frames, 425.04 fps, 22132.71 kb/s
> encoded 600 frames, 416.07 fps, 22132.71 kb/s
> encoded 600 frames, 417.49 fps, 22132.71 kb/s
> encoded 600 frames, 420.65 fps, 22132.71 kb/s
> encoded 600 frames, 425.55 fps, 22132.71 kb/s
> encoded 600 frames, 425.58 fps, 22132.71 kb/s
> encoded 600 frames, 426.18 fps, 22132.71 kb/s
> encoded 600 frames, 424.21 fps, 22132.71 kb/s
> encoded 600 frames, 422.20 fps, 22132.71 kb/s
> encoded 600 frames, 423.15 fps, 22132.71 kb/s
>
> -SD_BALANCE_NEWIDLE
> encoded 600 frames, 378.52 fps, 22132.71 kb/s
> encoded 600 frames, 378.75 fps, 22132.71 kb/s
> encoded 600 frames, 378.20 fps, 22132.71 kb/s
> encoded 600 frames, 372.54 fps, 22132.71 kb/s
> encoded 600 frames, 366.69 fps, 22132.71 kb/s
> encoded 600 frames, 378.46 fps, 22132.71 kb/s
> encoded 600 frames, 379.89 fps, 22132.71 kb/s
> encoded 600 frames, 382.25 fps, 22132.71 kb/s
> encoded 600 frames, 384.10 fps, 22132.71 kb/s
> encoded 600 frames, 375.24 fps, 22132.71 kb/s
What about my last patch? The one that avoids idle_balance() if the
previous task was in a task_uninterruptible state. That one gave the
same performance increase that removing idle_balance() did on my box.
-- Steve
next prev parent reply other threads:[~2013-02-17 21:54 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-15 6:13 [RFC] sched: The removal of idle_balance() Steven Rostedt
2013-02-15 7:26 ` Mike Galbraith
2013-02-15 12:07 ` Peter Zijlstra
2013-02-15 12:21 ` Peter Zijlstra
2013-02-15 12:32 ` Mike Galbraith
2013-02-16 16:12 ` Steven Rostedt
2013-02-17 6:26 ` Mike Galbraith
2013-02-17 7:14 ` Mike Galbraith
2013-02-17 21:54 ` Steven Rostedt [this message]
2013-02-18 3:42 ` Mike Galbraith
2013-02-18 15:23 ` Steven Rostedt
2013-02-18 17:22 ` Mike Galbraith
2013-02-15 7:45 ` Joonsoo Kim
2013-02-15 15:05 ` Steven Rostedt
2013-02-17 6:26 ` Mike Galbraith
2013-02-18 8:13 ` Srikar Dronamraju
2013-02-18 15:25 ` Steven Rostedt
2013-02-19 4:13 ` Rakib Mullick
2013-02-19 7:29 ` Michael Wang
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