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

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Message-ID: <475A1BEE.2050109@linux.vnet.ibm.com>
Date:	Sat, 08 Dec 2007 09:52:06 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	David Rientjes <rientjes@...gle.com>
CC:	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

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.


-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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