linux-kernel - Re: [patch] CFS scheduler, -v10

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Message-Id: <1178613129.6181.4.camel@Homer.simpson.net>
Date:	Tue, 08 May 2007 10:32:09 +0200
From:	Mike Galbraith <efault@....de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Con Kolivas <kernel@...ivas.org>,
	Nick Piggin <npiggin@...e.de>,
	Arjan van de Ven <arjan@...radead.org>,
	Peter Williams <pwil3058@...pond.net.au>,
	Thomas Gleixner <tglx@...utronix.de>, caglar@...dus.org.tr,
	Willy Tarreau <w@....eu>,
	Gene Heskett <gene.heskett@...il.com>, Mark Lord <lkml@....ca>
Subject: Re: [patch] CFS scheduler, -v10

On Tue, 2007-05-08 at 09:51 +0200, Mike Galbraith wrote:

> When thud starts, chew takes a size 14EEE latency hit if bits 1, 2 and 3
> are set in sysctl_sched_load_smoothing.

Well shoot, I take it back.  I'm seeing it with 0x1 as well.

pid 6155, prio   0, out for   32 ms, ran for    4 ms, load  13%
pid 6155, prio   0, out for   24 ms, ran for    5 ms, load  19%
pid 6155, prio   0, out for    2 ms, ran for    4 ms, load  69%
pid 6155, prio   0, out for  760 ms, ran for 10031 ms, load  92%
pid 6155, prio   0, out for   32 ms, ran for    4 ms, load  13%
pid 6155, prio   0, out for   32 ms, ran for    4 ms, load  13%


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