From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Rik van Riel <riel@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Virtualization Mailing List <virtualization@lists.osdl.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: How to get a sense of VM pressure
Date: Mon, 28 Jul 2008 01:12:41 -0700 [thread overview]
Message-ID: <488D7F79.40102@goop.org> (raw)
In-Reply-To: <1217230570.6331.6.camel@twins>
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
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prev parent reply other threads:[~2008-07-28 8:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-25 17:55 Jeremy Fitzhardinge
2008-07-26 4:25 ` Nick Piggin
2008-07-27 3:14 ` Dave Hansen
2008-07-28 8:10 ` Jeremy Fitzhardinge
2008-07-27 6:43 ` Rusty Russell
2008-07-28 7:36 ` Peter Zijlstra
2008-07-28 8:12 ` Jeremy Fitzhardinge [this message]
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