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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <488D7F79.40102@goop.org>
Date:	Mon, 28 Jul 2008 01:12:41 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Peter Zijlstra <peterz@...radead.org>
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

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 from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/