From: Christoph Lameter <clameter@sgi.com>
To: Andy Whitcroft <apw@shadowen.org>
Cc: Andrew Morton <akpm@osdl.org>, Mel Gorman <mel@csn.ul.ie>,
Nick Piggin <nickpiggin@yahoo.com.au>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: Page allocator: Single Zone optimizations
Date: Thu, 2 Nov 2006 10:08:36 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0611021004270.8098@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <454A2CE5.6080003@shadowen.org>
On Thu, 2 Nov 2006, Andy Whitcroft wrote:
> with no reclaimable blocks regardless of algorithm. Unless we are going
> to allow all pages to be reclaimed (which is a massive job of
> unthinkable proportions IMO) then we need some kind of placement scheme
> to aid reclaim.
The pages clearly need to be separated according to movable and
unmovable. However, I think reclaimable needs to be the default
and some simple measures will make a significant portion of the pages that
we cannot currently move movable.
Unmovable pages need to be managed with some sort of special scheme and
are need to be kept together in a separate pool or something, They do not
need memory policy support f.e. Regular allocations should be left
unchanged and continue to be handled as is. Unmovable pages may have a
special flag or be handled in some special way.
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next prev parent reply other threads:[~2006-11-02 18:08 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-17 0:50 Christoph Lameter
2006-10-17 1:10 ` Andrew Morton
2006-10-17 1:13 ` Christoph Lameter
2006-10-17 1:27 ` KAMEZAWA Hiroyuki
2006-10-17 1:25 ` Christoph Lameter
2006-10-17 6:04 ` Nick Piggin
2006-10-17 17:54 ` Christoph Lameter
2006-10-18 11:15 ` Nick Piggin
2006-10-18 19:38 ` Andrew Morton
2006-10-23 23:08 ` Christoph Lameter
2006-10-24 1:07 ` Christoph Lameter
2006-10-26 22:09 ` Andrew Morton
2006-10-26 22:28 ` Christoph Lameter
2006-10-28 1:00 ` Christoph Lameter
2006-10-28 2:04 ` Andrew Morton
2006-10-28 2:12 ` Christoph Lameter
2006-10-28 2:24 ` Andrew Morton
2006-10-28 2:31 ` Christoph Lameter
2006-10-28 4:43 ` Andrew Morton
2006-10-28 7:47 ` KAMEZAWA Hiroyuki
2006-10-28 16:12 ` Andi Kleen
2006-10-29 0:48 ` Christoph Lameter
2006-10-29 1:04 ` Andrew Morton
2006-10-29 1:29 ` Christoph Lameter
2006-10-29 11:32 ` Nick Piggin
2006-10-30 16:41 ` Christoph Lameter
2006-11-01 18:26 ` Mel Gorman
2006-11-01 20:34 ` Andrew Morton
2006-11-01 21:00 ` Christoph Lameter
2006-11-01 21:46 ` Andrew Morton
2006-11-01 21:50 ` Christoph Lameter
2006-11-01 22:13 ` Mel Gorman
2006-11-01 23:29 ` Christoph Lameter
2006-11-02 0:22 ` Andrew Morton
2006-11-02 0:27 ` Christoph Lameter
2006-11-02 12:45 ` Mel Gorman
2006-11-01 22:10 ` Mel Gorman
2006-11-02 17:37 ` Andy Whitcroft
2006-11-02 18:08 ` Christoph Lameter [this message]
2006-11-02 20:58 ` Mel Gorman
2006-11-02 21:04 ` Christoph Lameter
2006-11-02 21:16 ` Mel Gorman
2006-11-02 21:52 ` Christoph Lameter
2006-11-02 22:37 ` Mel Gorman
2006-11-02 22:50 ` Christoph Lameter
2006-11-03 9:14 ` Mel Gorman
2006-11-03 13:17 ` Andy Whitcroft
2006-11-03 18:11 ` Christoph Lameter
2006-11-03 19:06 ` Mel Gorman
2006-11-03 19:44 ` Christoph Lameter
2006-11-03 21:11 ` Mel Gorman
2006-11-03 21:42 ` Christoph Lameter
2006-11-03 21:50 ` Andrew Morton
2006-11-03 21:53 ` Christoph Lameter
2006-11-03 22:12 ` Andrew Morton
2006-11-03 22:15 ` Christoph Lameter
2006-11-03 22:19 ` Andi Kleen
2006-11-04 0:37 ` Christoph Lameter
2006-11-04 1:32 ` Andi Kleen
2006-11-06 16:40 ` Christoph Lameter
2006-11-06 16:56 ` Andi Kleen
2006-11-06 17:00 ` Christoph Lameter
2006-11-06 17:07 ` Andi Kleen
2006-11-06 17:12 ` Hugh Dickins
2006-11-06 17:15 ` Christoph Lameter
2006-11-06 17:20 ` Andi Kleen
2006-11-06 17:26 ` Christoph Lameter
2006-11-07 16:30 ` Mel Gorman
2006-11-07 17:54 ` Christoph Lameter
2006-11-07 18:14 ` Mel Gorman
2006-11-08 0:29 ` KAMEZAWA Hiroyuki
2006-11-08 2:08 ` Christoph Lameter
2006-11-13 21:08 ` Mel Gorman
2006-11-03 12:48 ` Peter Zijlstra
2006-11-03 18:15 ` Christoph Lameter
2006-11-03 18:53 ` Peter Zijlstra
2006-11-03 19:23 ` Christoph Lameter
2006-11-02 18:52 ` Andrew Morton
2006-11-02 21:51 ` Mel Gorman
2006-11-02 22:03 ` Andy Whitcroft
2006-11-02 22:11 ` Andrew Morton
2006-11-01 18:13 ` Mel Gorman
2006-11-01 17:39 ` Mel Gorman
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