linux-kernel - Re: How to get a sense of VM pressure

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Message-ID: <488D7EF9.2020500@goop.org>
Date:	Mon, 28 Jul 2008 01:10:33 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Nick Piggin <nickpiggin@...oo.com.au>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Virtualization Mailing List <virtualization@...ts.osdl.org>,
	Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: How to get a sense of VM pressure

Nick Piggin wrote:
> A good start would be to register a "shrinker" (look at dcache or inode
> cache for examples). Start off by allocating pages, and slow down or
> stop or even release some of the pages back as you start getting feedback
> back through your shrinker callback.
>
> Not perfect, but it should prevent livelocks.
>   

Thanks, that's a good starting place.

    J
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