From: Rik van Riel <riel@redhat.com>
To: "Dike, Jeffrey G" <jeffrey.g.dike@intel.com>
Cc: "balbir@linux.vnet.ibm.com" <balbir@linux.vnet.ibm.com>,
"Wu, Fengguang" <fengguang.wu@intel.com>,
Avi Kivity <avi@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
"Yu, Wilfred" <wilfred.yu@intel.com>,
"Kleen, Andi" <andi.kleen@intel.com>,
Hugh Dickins <hugh.dickins@tiscali.co.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux-foundation.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mel@csn.ul.ie>, LKML <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [RFC] respect the referenced bit of KVM guest pages?
Date: Mon, 31 Aug 2009 16:09:37 -0400 [thread overview]
Message-ID: <4A9C2E01.7080707@redhat.com> (raw)
In-Reply-To: <9EECC02A4CC333418C00A85D21E893260184183339@azsmsx502.amr.corp.intel.com>
Dike, Jeffrey G wrote:
>> This will be because the VM does not start aging pages
>> from the active to the inactive list unless there is
>> some memory pressure.
>
> Which is the reason I gave the VM a puny amount of memory.
> We know the thing is under memory pressure because I've been
> complaining about page discards.
Page discards by the host, which are invisible to the guest
OS.
The guest OS thinks it has enough pages. The host disagrees
and swaps out some guest memory.
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next prev parent reply other threads:[~2009-08-31 20:09 UTC|newest]
Thread overview: 122+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-05 2:40 [RFC] respect the referenced bit of KVM guest pages? Wu Fengguang
2009-08-05 4:15 ` KOSAKI Motohiro
2009-08-05 4:41 ` Wu Fengguang
2009-08-05 7:58 ` Avi Kivity
2009-08-05 8:17 ` Avi Kivity
2009-08-05 14:33 ` Rik van Riel
2009-08-05 15:37 ` Avi Kivity
2009-08-05 14:15 ` Rik van Riel
2009-08-05 15:12 ` Avi Kivity
2009-08-05 15:15 ` Rik van Riel
2009-08-05 15:25 ` Avi Kivity
2009-08-05 16:35 ` Andrea Arcangeli
2009-08-05 16:31 ` Andrea Arcangeli
2009-08-05 17:25 ` Rik van Riel
2009-08-05 15:45 ` Dike, Jeffrey G
2009-08-05 16:05 ` Andrea Arcangeli
2009-08-05 16:12 ` Dike, Jeffrey G
2009-08-05 16:19 ` Andrea Arcangeli
2009-08-05 15:58 ` Andrea Arcangeli
2009-08-05 17:20 ` Rik van Riel
2009-08-05 17:42 ` Rik van Riel
2009-08-06 10:15 ` Andrea Arcangeli
2009-08-06 10:08 ` Andrea Arcangeli
2009-08-06 10:18 ` Avi Kivity
2009-08-06 10:20 ` Andrea Arcangeli
2009-08-06 10:59 ` Wu Fengguang
2009-08-06 11:44 ` Avi Kivity
2009-08-06 13:06 ` Wu Fengguang
2009-08-06 13:16 ` Rik van Riel
2009-08-16 3:28 ` Wu Fengguang
2009-08-16 3:56 ` Rik van Riel
2009-08-16 4:43 ` Balbir Singh
2009-08-16 4:55 ` Wu Fengguang
2009-08-16 5:59 ` Balbir Singh
2009-08-17 19:47 ` Dike, Jeffrey G
2009-08-21 18:24 ` Balbir Singh
2009-08-31 19:43 ` Dike, Jeffrey G
2009-08-31 19:52 ` Rik van Riel
2009-08-31 20:06 ` Dike, Jeffrey G
2009-08-31 20:09 ` Rik van Riel [this message]
2009-08-31 20:11 ` Dike, Jeffrey G
2009-08-31 20:42 ` Balbir Singh
2009-08-06 13:46 ` Avi Kivity
2009-08-06 21:09 ` Jeff Dike
2009-08-16 3:18 ` Wu Fengguang
2009-08-16 3:53 ` Rik van Riel
2009-08-16 5:15 ` Wu Fengguang
2009-08-16 11:29 ` Wu Fengguang
2009-08-17 14:33 ` Minchan Kim
2009-08-18 2:34 ` Wu Fengguang
2009-08-18 4:17 ` Minchan Kim
2009-08-18 9:31 ` Wu Fengguang
2009-08-18 9:52 ` Minchan Kim
2009-08-18 10:00 ` Wu Fengguang
2009-08-18 11:00 ` Minchan Kim
2009-08-18 11:11 ` Wu Fengguang
2009-08-18 14:03 ` Minchan Kim
2009-08-18 16:27 ` KOSAKI Motohiro
2009-08-18 15:57 ` KOSAKI Motohiro
2009-08-19 12:01 ` Wu Fengguang
2009-08-19 12:05 ` KOSAKI Motohiro
2009-08-19 12:10 ` Wu Fengguang
2009-08-19 12:25 ` Minchan Kim
2009-08-19 13:19 ` KOSAKI Motohiro
2009-08-19 13:28 ` Minchan Kim
2009-08-21 11:17 ` KOSAKI Motohiro
2009-08-19 13:24 ` Wu Fengguang
2009-08-19 13:38 ` Minchan Kim
2009-08-19 14:00 ` Wu Fengguang
2009-08-06 13:13 ` Rik van Riel
2009-08-06 13:49 ` Avi Kivity
2009-08-07 3:11 ` KOSAKI Motohiro
2009-08-07 7:54 ` Balbir Singh
2009-08-07 8:24 ` KAMEZAWA Hiroyuki
2009-08-06 13:11 ` Rik van Riel
2009-08-06 13:08 ` Rik van Riel
2009-08-07 3:17 ` KOSAKI Motohiro
2009-08-12 7:48 ` Wu Fengguang
2009-08-12 14:31 ` Rik van Riel
2009-08-13 1:03 ` Wu Fengguang
2009-08-13 15:46 ` Rik van Riel
2009-08-13 16:12 ` Avi Kivity
2009-08-13 16:26 ` Rik van Riel
2009-08-13 19:12 ` Avi Kivity
2009-08-13 21:16 ` Johannes Weiner
2009-08-14 7:16 ` Avi Kivity
2009-08-14 9:10 ` Johannes Weiner
2009-08-14 9:51 ` Wu Fengguang
2009-08-14 13:19 ` Rik van Riel
2009-08-15 5:45 ` Wu Fengguang
2009-08-16 5:09 ` Balbir Singh
2009-08-16 5:41 ` Wu Fengguang
2009-08-16 5:50 ` Wu Fengguang
2009-08-18 15:57 ` KOSAKI Motohiro
2009-08-17 18:04 ` Dike, Jeffrey G
2009-08-18 2:26 ` Wu Fengguang
2009-09-02 19:30 ` Dike, Jeffrey G
2009-09-03 2:04 ` Wu Fengguang
2009-09-04 20:06 ` Dike, Jeffrey G
2009-09-04 20:57 ` Rik van Riel
2009-08-18 15:57 ` KOSAKI Motohiro
2009-08-19 12:08 ` Wu Fengguang
2009-08-19 13:40 ` [RFC] memcg: move definitions to .h and inline some functions Wu Fengguang
2009-08-19 14:18 ` KAMEZAWA Hiroyuki
2009-08-19 14:27 ` Balbir Singh
2009-08-20 1:34 ` Wu Fengguang
2009-08-14 21:42 ` [RFC] respect the referenced bit of KVM guest pages? Dike, Jeffrey G
2009-08-14 22:37 ` Rik van Riel
2009-08-15 5:32 ` Wu Fengguang
2009-09-13 16:23 ` KOSAKI Motohiro
2009-08-05 17:53 ` Rik van Riel
2009-08-05 19:00 ` Dike, Jeffrey G
2009-08-05 19:07 ` Rik van Riel
2009-08-05 19:18 ` Dike, Jeffrey G
2009-08-06 9:22 ` Avi Kivity
2009-08-06 9:25 ` Wu Fengguang
2009-08-06 9:35 ` Avi Kivity
2009-08-06 9:35 ` Wu Fengguang
2009-08-06 9:59 ` Avi Kivity
2009-08-06 9:59 ` Wu Fengguang
2009-08-06 10:14 ` Avi Kivity
2009-08-07 1:25 ` KAMEZAWA Hiroyuki
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