linux-kernel - Re: memory resource accounting (was Re: [RFC, PATCH 0/5] Going forward with Resource Management

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Date:	09 Aug 2006 06:33:54 +0200
From:	Andi Kleen <ak@...e.de>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	rohitseth@...gle.com, Dave Hansen <haveblue@...ibm.com>,
	Kirill Korotaev <dev@...ru>, vatsa@...ibm.com,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Andrew Morton <akpm@...l.org>, mingo@...e.hu, sam@...ain.net,
	linux-kernel@...r.kernel.org, dev@...nvz.org, efault@....de,
	balbir@...ibm.com, sekharan@...ibm.com, nagar@...son.ibm.com,
	pj@....com, Andrey Savochkin <saw@...ru>
Subject: Re: memory resource accounting (was Re: [RFC, PATCH 0/5] Going forward with Resource Management - A	cpu controller)

Nick Piggin <nickpiggin@...oo.com.au> writes:
> 
> - each struct page has a backpointer to its billed container. At the mm
>    summit Linus said he didn't want back pointers, but I clarified with him
>    and he isn't against them if they are easily configured out when not using
>    memory controllers.

This would need to be done at runtime though, otherwise it's useless
for distributions and other people who want single kernel binary images.

Probably would need a second parallel table, but for that you would
need to know at boot already if you plan to use them or not. Ugly.

-Andi
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