linux-kernel - Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface)

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Message-ID: <44E9B69D.9060109@sw.ru>
Date:	Mon, 21 Aug 2006 17:35:25 +0400
From:	Kirill Korotaev <dev@...ru>
To:	Andrew Morton <akpm@...l.org>
CC:	Dave Hansen <haveblue@...ibm.com>, Rik van Riel <riel@...hat.com>,
	ckrm-tech@...ts.sourceforge.net,
	Christoph@...-sf-spam2-b.sourceforge.net,
	List <linux-kernel@...r.kernel.org>, Hellwig <hch@...radead.org>,
	Andrey Savochkin <saw@...ru>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Linux@...-sf-spam2-b.sourceforge.net, rohitseth@...gle.com,
	hugh@...itas.com, Ingo Molnar <mingo@...e.hu>,
	Pavel Emelianov <xemul@...nvz.org>, devel@...nvz.org,
	Andi Kleen <ak@...e.de>
Subject: Re: [ckrm-tech] [PATCH 4/7] UBC: syscalls (user interface)

Andrew Morton wrote:
> I have this mad idea that you can divide a 128GB machine up into 256 fake
> NUMA nodes, then you use each "node" as a 512MB unit of memory allocation. 
> So that 4.5GB job would be placed within an exclusive cpuset which has nine
> "mems" (what are these called?) and voila: the job has a hard 4.5GB limit,
> no kernel changes needed.
this doesn't allow memory overcommitment, does it?

Kirill
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