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

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Message-ID: <9EECC02A4CC333418C00A85D21E89326B6611E81@azsmsx502.amr.corp.intel.com>
Date:	Mon, 17 Aug 2009 11:04:46 -0700
From:	"Dike, Jeffrey G" <jeffrey.g.dike@...el.com>
To:	"Wu, Fengguang" <fengguang.wu@...el.com>,
	Rik van Riel <riel@...hat.com>
CC:	Johannes Weiner <hannes@...xchg.org>, Avi Kivity <avi@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.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>,
	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?

> Jeff, can you confirm if the mem cgroup's inactive list is small?

Nope.  I have plenty on the inactive anon list, between 13K and 16K pages (i.e. 52M to 64M).

The inactive mapped list is much smaller - 0 to ~700 pages.

The active lists are comparable in size, but larger - 16K - 19K pages for anon and 60 - 450 pages for mapped.

						Jeff

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