From: Andi Kleen <ak@suse.de>
To: Christoph Lameter <clameter@sgi.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>, AKPM <akpm@linux-foundation.org>
Subject: Re: [PATCH] change global zonelist order on NUMA v2
Date: Thu, 26 Apr 2007 17:51:37 +0200 [thread overview]
Message-ID: <200704261751.37656.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0704260845160.1382@schroedinger.engr.sgi.com>
On Thursday 26 April 2007 17:46:35 Christoph Lameter wrote:
>
> It is not a good idea if node 0 has both DMA and NORMAL memory and normal
> memory is a small fraction of node memory. In that case lots of
> allocations get redirected to node 1.
Good point yes. On x86-64 you might even have ZONE_DMA on node 0/1 and NORMAL
only on 3. I guess this needs to be detected somehow.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@suse.de>
To: Christoph Lameter <clameter@sgi.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>, AKPM <akpm@linux-foundation.org>
Subject: Re: [PATCH] change global zonelist order on NUMA v2
Date: Thu, 26 Apr 2007 17:51:37 +0200 [thread overview]
Message-ID: <200704261751.37656.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0704260845160.1382@schroedinger.engr.sgi.com>
On Thursday 26 April 2007 17:46:35 Christoph Lameter wrote:
>
> It is not a good idea if node 0 has both DMA and NORMAL memory and normal
> memory is a small fraction of node memory. In that case lots of
> allocations get redirected to node 1.
Good point yes. On x86-64 you might even have ZONE_DMA on node 0/1 and NORMAL
only on 3. I guess this needs to be detected somehow.
-Andi
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next prev parent reply other threads:[~2007-04-26 15:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-26 9:34 [PATCH] change global zonelist order on NUMA v2 KAMEZAWA Hiroyuki
2007-04-26 9:34 ` KAMEZAWA Hiroyuki
2007-04-26 9:47 ` Andi Kleen
2007-04-26 9:47 ` Andi Kleen
2007-04-26 10:10 ` KAMEZAWA Hiroyuki
2007-04-26 10:10 ` KAMEZAWA Hiroyuki
2007-04-26 10:53 ` [PATCH] change global zonelist order on NUMA v3 KAMEZAWA Hiroyuki
2007-04-26 10:53 ` KAMEZAWA Hiroyuki
2007-04-26 16:00 ` Lee Schermerhorn
2007-04-26 16:00 ` Lee Schermerhorn
2007-04-26 16:06 ` Christoph Lameter
2007-04-26 16:06 ` Christoph Lameter
2007-04-26 16:29 ` Lee Schermerhorn
2007-04-26 16:29 ` Lee Schermerhorn
2007-04-26 16:36 ` Christoph Lameter
2007-04-26 16:36 ` Christoph Lameter
2007-04-26 15:48 ` [PATCH] change global zonelist order on NUMA v2 Christoph Lameter
2007-04-26 15:48 ` Christoph Lameter
2007-04-27 0:27 ` KAMEZAWA Hiroyuki
2007-04-27 0:27 ` KAMEZAWA Hiroyuki
2007-04-27 1:25 ` Christoph Lameter
2007-04-27 1:25 ` Christoph Lameter
2007-04-27 1:50 ` KAMEZAWA Hiroyuki
2007-04-27 1:50 ` KAMEZAWA Hiroyuki
2007-04-30 15:03 ` Lee Schermerhorn
2007-04-30 15:03 ` Lee Schermerhorn
2007-04-30 14:09 ` Lee Schermerhorn
2007-04-30 14:09 ` Lee Schermerhorn
2007-04-26 15:46 ` Christoph Lameter
2007-04-26 15:46 ` Christoph Lameter
2007-04-26 15:51 ` Andi Kleen [this message]
2007-04-26 15:51 ` Andi Kleen
2007-04-26 21:57 ` Lee Schermerhorn
2007-04-26 21:57 ` Lee Schermerhorn
2007-04-26 22:07 ` Christoph Lameter
2007-04-26 22:07 ` Christoph Lameter
2007-04-27 0:41 ` KAMEZAWA Hiroyuki
2007-04-27 0:41 ` KAMEZAWA Hiroyuki
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