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

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Message-ID: <4A9C2A17.3080802@redhat.com>
Date:	Mon, 31 Aug 2009 15:52:55 -0400
From:	Rik van Riel <riel@...hat.com>
To:	"Dike, Jeffrey G" <jeffrey.g.dike@...el.com>
CC:	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"Wu, Fengguang" <fengguang.wu@...el.com>,
	Avi Kivity <avi@...hat.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	"Yu, Wilfred" <wilfred.yu@...el.com>,
	"Kleen, Andi" <andi.kleen@...el.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:
>> What do the stats for / from within kvm look like?
> 
> Interesting - what they look like is inactive_anon is always zero.

This will be because the VM does not start aging pages
from the active to the inactive list unless there is
some memory pressure.
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