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From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: David Rientjes <rientjes@google.com>
Cc: linuxppc-dev@ozlabs.org, Nathan Lynch <ntl@pobox.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Fake NUMA emulation for PowerPC
Date: Sat, 08 Dec 2007 10:02:46 +0530	[thread overview]
Message-ID: <475A1E6E.3010303@linux.vnet.ibm.com> (raw)
In-Reply-To: <alpine.DEB.0.9999.0712071510370.27689@chino.kir.corp.google.com>

David Rientjes wrote:
> On Sat, 8 Dec 2007, Balbir Singh wrote:
> 
>> Yes, they all appear on node 0. We could have tweaks to distribute CPU's
>> as well.
>>
> 
> You're going to want to distribute the cpu's based on how they match up 
> physically with the actual platform that you're running on.  x86_64 does 

Could you explain this better, how does it match up CPU's with fake NUMA
memory? Is there some smartness there? I'll try and look at the code and
also see what I can do for PowerPC

> this already and it makes fake NUMA more useful because it matches the 
> real-life case more often.

Yes, I agree, but I don't want that to be the first step for fake NUMA
nodes on PowerPC. I think we can incrementally add features.

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

  reply	other threads:[~2007-12-08  4:32 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-07 21:14 [PATCH] Fake NUMA emulation for PowerPC Balbir Singh
2007-12-07 21:28 ` Olof Johansson
2007-12-07 21:35   ` Balbir Singh
2007-12-07 21:55     ` Kumar Gala
2007-12-07 22:12       ` Balbir Singh
2007-12-07 22:15         ` Kumar Gala
2007-12-07 22:18           ` Balbir Singh
2007-12-07 23:10         ` David Rientjes
2007-12-08  4:22           ` Balbir Singh
2007-12-09 13:16             ` Pavel Machek
2007-12-09 13:20               ` Balbir Singh
2007-12-07 23:06   ` David Rientjes
2007-12-07 21:30 ` Geert Uytterhoeven
2007-12-07 21:35   ` Balbir Singh
2007-12-07 21:43     ` Balbir Singh
2007-12-07 21:58       ` Arnd Bergmann
2007-12-07 22:03         ` Balbir Singh
2007-12-07 22:01 ` Arnd Bergmann
2007-12-07 22:22   ` Balbir Singh
     [not found] ` <20071207221106.GH16824@localdomain>
2007-12-07 22:26   ` Balbir Singh
2007-12-07 23:11     ` David Rientjes
2007-12-08  4:32       ` Balbir Singh [this message]
2007-12-08  4:45         ` David Rientjes

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