linux-kernel - Re: [PATCH] Fix fake numa on ppc

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Message-Id: <1251870823.14675.420.camel@pasglop>
Date:	Wed, 02 Sep 2009 15:53:43 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Ankita Garg <ankita@...ibm.com>
Cc:	Balbir Singh <balbir@...ux.vnet.ibm.com>, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix fake numa on ppc

On Wed, 2009-09-02 at 11:06 +0530, Ankita Garg wrote:
> > Oh! interesting.. cpuless nodes :) I think we need to fix this in the
> > longer run and distribute cpus between fake numa nodes of a real node
> > using some acceptable heuristic.
> >
> 
> True. Presently this is broken on both x86 and ppc systems. It would be
> interesting to find a way to map, for example, 4 cpus to >4 number of
> fake nodes created from a single real numa node!

Since I'm pretty sure there could be CPU less nodes just like there
could be memory-less nodes, it would be good if fake numa could
simulate them too :-)

Cheers,
Ben.


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