linux-kernel - Re: 2.6.19-rc6-mm1 -- sched-improve-migration-accuracy.patch slows boot

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Message-ID: <20061127101600.GB5812@elte.hu>
Date:	Mon, 27 Nov 2006 11:16:00 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Don Mullis <dwm@...r.net>
Cc:	Mike Galbraith <efault@....de>, Andrew Morton <akpm@...l.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.19-rc6-mm1 -- sched-improve-migration-accuracy.patch slows boot


* Don Mullis <dwm@...r.net> wrote:

> > This must be a bisection false positive.  The patch in question is
> > essentially a no-op for a UP kernel.
> 
> Testing alternately with 
> 	1) all -mm1 patches applied, and 
> 	2) all except sched-improve-migration-accuracy*.path applied,
> confirms the misbehavior.

could you run this utility:

  http://people.redhat.com/mingo/time-warp-test/time-warp-test.c

on your box for a while (10 minutes or so) - what does it print?

	Ingo
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