From: Christoph Lameter <clameter@sgi.com>
To: Mel Gorman <mel@skynet.ie>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
linux-mm@kvack.org, Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
ak@suse.de, akpm@linux-foundation.org, pj@sgi.com
Subject: Re: NUMA policy issues with ZONE_MOVABLE
Date: Thu, 26 Jul 2007 11:03:59 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0707261100210.2374@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070726161652.GA16556@skynet.ie>
On Thu, 26 Jul 2007, Mel Gorman wrote:
> /* policy_zone is the lowest zone index that is present on all nodes */
>
> Right?
Nope. In a 4 node x86_64 opteron configuration with 8GB memory in 4 2GB
chunks you could have
node 0 ZONE_DMA, ZONE_DMA32 <2GB
node 1 ZONE_DMA32 <4GB
node 2 ZONE_NORMAL <6GB
node 3 ZONE_NORMAL <8GB
So the highest zone gets partitioned off? We only have ZONE_MOVABLE on
nodes 2 and 3?
There are some other weirdnesses possible with ZONE_MOVABLE on !NUMA.
1GB i386 system
ZONE_DMA
ZONE_NORMAL <900k
ZONE_HIGHEMEM 100k size
ZONE_MOVABLE can then only use 100k?
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next prev parent reply other threads:[~2007-07-26 18:03 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-25 4:20 Christoph Lameter
2007-07-25 4:47 ` Nick Piggin
2007-07-25 5:05 ` Christoph Lameter
2007-07-25 5:24 ` Nick Piggin
2007-07-25 6:00 ` Christoph Lameter
2007-07-25 6:09 ` Nick Piggin
2007-07-25 9:32 ` Andi Kleen
2007-07-25 6:36 ` KAMEZAWA Hiroyuki
2007-07-25 11:16 ` Mel Gorman
2007-07-25 14:30 ` Lee Schermerhorn
2007-07-25 19:31 ` Christoph Lameter
2007-07-26 4:15 ` KAMEZAWA Hiroyuki
2007-07-26 4:53 ` Christoph Lameter
2007-07-26 7:41 ` KAMEZAWA Hiroyuki
2007-07-26 16:16 ` Mel Gorman
2007-07-26 18:03 ` Christoph Lameter [this message]
2007-07-26 18:26 ` Mel Gorman
2007-07-26 13:23 ` Mel Gorman
2007-07-26 18:07 ` Christoph Lameter
2007-07-26 22:59 ` Mel Gorman
2007-07-27 1:22 ` Christoph Lameter
2007-07-27 8:20 ` Mel Gorman
2007-07-27 15:45 ` Mel Gorman
2007-07-27 17:35 ` Christoph Lameter
2007-07-27 17:46 ` Mel Gorman
2007-07-27 18:38 ` Christoph Lameter
2007-07-27 18:00 ` [PATCH] Document Linux Memory Policy - V2 Lee Schermerhorn
2007-07-27 18:38 ` Randy Dunlap
2007-07-27 19:01 ` Lee Schermerhorn
2007-07-27 19:21 ` Randy Dunlap
2007-07-27 18:55 ` Christoph Lameter
2007-07-27 19:24 ` Lee Schermerhorn
2007-07-31 15:14 ` Mel Gorman
2007-07-31 16:34 ` Lee Schermerhorn
2007-07-31 19:10 ` Christoph Lameter
2007-07-31 19:46 ` Lee Schermerhorn
2007-07-31 19:58 ` Christoph Lameter
2007-07-31 20:23 ` Lee Schermerhorn
2007-07-31 20:48 ` [PATCH] Document Linux Memory Policy - V3 Lee Schermerhorn
2007-08-03 13:52 ` Mel Gorman
2007-07-28 7:28 ` NUMA policy issues with ZONE_MOVABLE KAMEZAWA Hiroyuki
2007-07-28 11:57 ` Mel Gorman
2007-07-28 14:10 ` KAMEZAWA Hiroyuki
2007-07-28 14:21 ` KAMEZAWA Hiroyuki
2007-07-30 12:41 ` Mel Gorman
2007-07-30 18:06 ` Christoph Lameter
2007-07-27 14:24 ` Lee Schermerhorn
2007-08-01 18:59 ` Lee Schermerhorn
2007-08-02 0:36 ` KAMEZAWA Hiroyuki
2007-08-02 17:10 ` Mel Gorman
2007-08-02 17:51 ` Lee Schermerhorn
2007-07-26 18:09 ` Lee Schermerhorn
2007-08-02 14:09 ` Mel Gorman
2007-08-02 18:56 ` Christoph Lameter
2007-08-02 19:42 ` Mel Gorman
2007-08-02 19:52 ` Christoph Lameter
2007-08-03 9:32 ` Mel Gorman
2007-08-03 16:36 ` Christoph Lameter
2007-07-25 14:27 ` Lee Schermerhorn
2007-07-25 17:39 ` Mel Gorman
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