linux-kernel - Re: [RFC] respect the referenced bit of KVM guest pages?

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Message-ID: <4A79D88E.2040005@redhat.com>
Date:	Wed, 05 Aug 2009 15:07:58 -0400
From:	Rik van Riel <riel@...hat.com>
To:	"Dike, Jeffrey G" <jeffrey.g.dike@...el.com>
CC:	"Wu, Fengguang" <fengguang.wu@...el.com>,
	"Yu, Wilfred" <wilfred.yu@...el.com>,
	"Kleen, Andi" <andi.kleen@...el.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Avi Kivity <avi@...hat.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Mel Gorman <mel@....ul.ie>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>
Subject: Re: [RFC] respect the referenced bit of KVM guest pages?

Dike, Jeffrey G wrote:
>> Also, the inactive list (where references to anonymous pages
>> _do_ count) is pretty big.  Is it not big enough in Jeff's
>> test case?
> 
>> Jeff, what kind of workloads are you running in the guests?
> 
> I'm looking at KVM on small systems.  My "small system" is a 128M memory compartment on a 4G server.

How did you create that 128M memory compartment?

Did you use cgroups on the host system?

> The workload is boot up the instance, start Firefox and another app (whatever editor comes by default with Moblin), close them, and shut down the instance.

How much memory do you give your virtual machine?

That is, how much memory does it think it has?

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