From: Andi Kleen <ak@suse.de>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>, AKPM <akpm@linux-foundation.org>,
Christoph Lameter <clameter@sgi.com>
Subject: Re: [PATCH] change global zonelist order on NUMA v2
Date: Thu, 26 Apr 2007 11:47:44 +0200 [thread overview]
Message-ID: <200704261147.44413.ak@suse.de> (raw)
In-Reply-To: <20070426183417.058f6f9e.kamezawa.hiroyu@jp.fujitsu.com>
On Thursday 26 April 2007 11:34:17 KAMEZAWA Hiroyuki wrote:
>
> Changelog from V1 -> V2
> - sysctl name is changed to be relaxed_zone_order
> - NORMAL->NORMAL->....->DMA->DMA->DMA order (new ordering) is now default.
> NORMAL->DMA->NORMAL->DMA order (old ordering) is optional.
> - addes boot opttion to set relaxed_zone_order. ia64 is supported now.
> - Added documentation
>
> patch is against 2.6.21-rc7-mm2. tested on ia64 NUMA box. works well.
IMHO the change should be default (without any options) unless someone
can come up with a good reason why not. On x86-64 it should be definitely
default.
If there is a good reason on some architecture or machine a user option is also not a
good idea, but instead it should be set automatically by that architecture or machine
on boot.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@suse.de>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>, AKPM <akpm@linux-foundation.org>,
Christoph Lameter <clameter@sgi.com>
Subject: Re: [PATCH] change global zonelist order on NUMA v2
Date: Thu, 26 Apr 2007 11:47:44 +0200 [thread overview]
Message-ID: <200704261147.44413.ak@suse.de> (raw)
In-Reply-To: <20070426183417.058f6f9e.kamezawa.hiroyu@jp.fujitsu.com>
On Thursday 26 April 2007 11:34:17 KAMEZAWA Hiroyuki wrote:
>
> Changelog from V1 -> V2
> - sysctl name is changed to be relaxed_zone_order
> - NORMAL->NORMAL->....->DMA->DMA->DMA order (new ordering) is now default.
> NORMAL->DMA->NORMAL->DMA order (old ordering) is optional.
> - addes boot opttion to set relaxed_zone_order. ia64 is supported now.
> - Added documentation
>
> patch is against 2.6.21-rc7-mm2. tested on ia64 NUMA box. works well.
IMHO the change should be default (without any options) unless someone
can come up with a good reason why not. On x86-64 it should be definitely
default.
If there is a good reason on some architecture or machine a user option is also not a
good idea, but instead it should be set automatically by that architecture or machine
on boot.
-Andi
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next prev parent reply other threads:[~2007-04-26 9:47 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 [this message]
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
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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