linux-kernel - Re: [PATCH] Fake NUMA emulation for PowerPC

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Message-ID: <20071209131636.GF4381@ucw.cz>
Date:	Sun, 9 Dec 2007 13:16:36 +0000
From:	Pavel Machek <pavel@....cz>
To:	Balbir Singh <balbir@...ux.vnet.ibm.com>
Cc:	David Rientjes <rientjes@...gle.com>,
	Kumar Gala <galak@...nel.crashing.org>,
	Olof Johansson <olof@...om.net>, linuxppc-dev@...abs.org,
	magnus.damm@...il.com, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Fake NUMA emulation for PowerPC


On Sat 2007-12-08 09:52:06, Balbir Singh wrote:
> David Rientjes wrote:
> > On Sat, 8 Dec 2007, Balbir Singh wrote:
> > 
> >> To be able to test the memory controller under NUMA, I use fake NUMA
> >> nodes. x86-64 has a similar feature, the code I have here is the
> >> simplest I could come up with for PowerPC.
> >>
> > 
> > Magnus Damm had patches from over a year ago that, I believe, made much of 
> > the x86_64 fake NUMA code generic so that it could be extended for 
> > architectures such as i386.  Perhaps he could resurrect those patches if 
> > there is wider interest in such a tool.
> 
> That would be a very interesting patch, but what I have here is the
> simplest patch and we could build on it incrementally. The interface is
> non-standard but it does amazing things for 59 lines of code change.

Well, maybe it is amazing, but having non-standard interface is also
wrong...

-- 
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