linux-kernel - Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters

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Date:	Tue, 22 Aug 2006 11:02:50 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	rohitseth@...gle.com
Cc:	sekharan@...ibm.com, Kirill Korotaev <dev@...ru>,
	Rik van Riel <riel@...hat.com>,
	ckrm-tech@...ts.sourceforge.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Christoph Hellwig <hch@...radead.org>,
	Andrey Savochkin <saw@...ru>, devel@...nvz.org,
	hugh@...itas.com, Ingo Molnar <mingo@...e.hu>,
	Pavel Emelianov <xemul@...nvz.org>
Subject: Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters

Ar Llu, 2006-08-21 am 18:45 -0700, ysgrifennodd Rohit Seth:
> I think as the tasks move around, it becomes very heavy to move all the
> pages belonging to previous container to a new container.

Its not a meaningful thing to do. Remember an object may be passed
around or shared. The simple "creator pays" model avoids all the heavy
overheads while maintaining the constraints.

Its only user space pages that some of this (AS and RSS) become
interesting as "movable" objects


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