Re: v2.6.21.4-rt11

From: Ingo Molnar
Date: Mon Jun 11 2007 - 11:39:25 EST

* Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> 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.

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