linux-kernel - Re: v2.6.21.4-rt11

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Date:	Mon, 11 Jun 2007 17:38:55 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Dinakar Guniguntala <dino@...ibm.com>
Subject: Re: v2.6.21.4-rt11


* Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:

> > hm, what affinity do they start out with? Could they all be pinned 
> > to CPU#0 by default?
> 
> They start off with affinity masks of 0xf on a 4-CPU system.  I would 
> expect them to load-balance across the four CPUs, but they stay all on 
> the same CPU until long after I lose patience (many minutes).

ugh. Would be nice to figure out why this happens. I enabled rcutorture 
on a dual-core CPU and all the threads are spread evenly.

	Ingo
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