From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id 83E836B004F for ; Fri, 14 Aug 2009 17:42:18 -0400 (EDT) From: "Dike, Jeffrey G" Date: Fri, 14 Aug 2009 14:42:10 -0700 Subject: RE: [RFC] respect the referenced bit of KVM guest pages? Message-ID: <9EECC02A4CC333418C00A85D21E89326B6611AC5@azsmsx502.amr.corp.intel.com> References: <20090812074820.GA29631@localhost> <4A82D24D.6020402@redhat.com> <20090813010356.GA7619@localhost> <4A843565.3010104@redhat.com> <4A843B72.6030204@redhat.com> <4A843EAE.6070200@redhat.com> <4A846581.2020304@redhat.com> <20090813211626.GA28274@cmpxchg.org> <4A850F4A.9020507@redhat.com> <20090814091055.GA29338@cmpxchg.org> <20090814095106.GA3345@localhost> In-Reply-To: <20090814095106.GA3345@localhost> Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org To: "Wu, Fengguang" , Johannes Weiner Cc: Avi Kivity , Rik van Riel , KOSAKI Motohiro , Andrea Arcangeli , "Yu, Wilfred" , "Kleen, Andi" , Hugh Dickins , Andrew Morton , Christoph Lameter , Mel Gorman , LKML , linux-mm List-ID: A side note - I've been doing some tracing and shrink_active_list is called= a humongous number of times (25000-ish during a ~90 kvm run), with a net r= esult of zero pages moved nearly all the time. Your test is rescuing essen= tially all candidate pages from the inactive list. Right now, I have the V= M_EXEC || PageAnon version of your test. Jeff -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org