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Message-ID: <20070516080843.GA8909@elte.hu>
Date: Wed, 16 May 2007 10:08:43 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Peter Williams <pwil3058@...pond.net.au>
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>, Mike Galbraith <efault@....de>,
Arjan van de Ven <arjan@...radead.org>,
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, -v12
* Peter Williams <pwil3058@...pond.net.au> wrote:
> >As usual, any sort of feedback, bugreport, fix and suggestion is more
> >than welcome,
>
> Load balancing appears to be badly broken in this version. When I
> started 4 hard spinners on my 2 CPU machine one ended up on one CPU
> and the other 3 on the other CPU and they stayed there.
hm, i cannot reproduce this on 4 different SMP boxen, trying various
combinations of SCHED_SMT/MC and other .config options that might make a
difference to balancing. Could you send me your .config?
Ingo
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