From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <488D7F79.40102@goop.org> Date: Mon, 28 Jul 2008 01:12:41 -0700 From: Jeremy Fitzhardinge MIME-Version: 1.0 Subject: Re: How to get a sense of VM pressure References: <488A1398.7020004@goop.org> <1217230570.6331.6.camel@twins> In-Reply-To: <1217230570.6331.6.camel@twins> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Peter Zijlstra Cc: Linux Kernel Mailing List , Rik van Riel , Andrew Morton , Virtualization Mailing List , Linux Memory Management List List-ID: Peter Zijlstra wrote: > Have a peek at this: > > http://people.redhat.com/~riel/riel-OLS2006.pdf > > The refault patches have been posted several times, but nobody really > tried to use them for your problem. > Yep, Rik pointed the paper and patches out to me. Seems like an interesting approach to play with. The refaulting measure is nice because it should give a fairly good idea of how much memory you need to add to get the fault rate down below some particular level. It doesn't help with shrinking, other than telling you you've gone too far, and how much too far, which is definitely useful to know. J -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org