From: Christoph Lameter <cl@linux.com>
To: Bron Gondwana <brong@fastmail.fm>
Cc: Robert Mueller <robm@fastmail.fm>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mel@csn.ul.ie>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: Default zone_reclaim_mode = 1 on NUMA kernel is bad forfile/email/web servers
Date: Tue, 28 Sep 2010 07:49:40 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1009280748590.4144@router.home> (raw)
In-Reply-To: <1285677740.30176.1397281937@webmail.messagingengine.com>
On Tue, 28 Sep 2010, Bron Gondwana wrote:
> Is this what's happening, or is IO actually coming from disk in preference
> to the remote node? I can certainly see the logic behind preferring to
> reclaim the local node if that's all that's happening - though the OS should
> be allocating the different tasks more evenly across the nodes in that case.
Not sure about the disk. I did not see anything that would indicate and
issue with only being able to do 32 bit and I am no expert on the device
driver operations.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Lameter <cl@linux.com>
To: Bron Gondwana <brong@fastmail.fm>
Cc: Robert Mueller <robm@fastmail.fm>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mel@csn.ul.ie>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: Default zone_reclaim_mode = 1 on NUMA kernel is bad forfile/email/web servers
Date: Tue, 28 Sep 2010 07:49:40 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1009280748590.4144@router.home> (raw)
In-Reply-To: <1285677740.30176.1397281937@webmail.messagingengine.com>
On Tue, 28 Sep 2010, Bron Gondwana wrote:
> Is this what's happening, or is IO actually coming from disk in preference
> to the remote node? I can certainly see the logic behind preferring to
> reclaim the local node if that's all that's happening - though the OS should
> be allocating the different tasks more evenly across the nodes in that case.
Not sure about the disk. I did not see anything that would indicate and
issue with only being able to do 32 bit and I am no expert on the device
driver operations.
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next prev parent reply other threads:[~2010-09-28 12:49 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-13 3:39 Default zone_reclaim_mode = 1 on NUMA kernel is bad for file/email/web servers Robert Mueller
2010-09-16 10:01 ` KOSAKI Motohiro
2010-09-16 10:01 ` KOSAKI Motohiro
2010-09-16 17:06 ` Christoph Lameter
2010-09-16 17:06 ` Christoph Lameter
2010-09-17 0:50 ` Robert Mueller
2010-09-17 0:50 ` Robert Mueller
2010-09-17 6:01 ` Shaohua Li
2010-09-17 6:01 ` Shaohua Li
2010-09-17 7:32 ` Robert Mueller
2010-09-17 7:32 ` Robert Mueller
2010-09-17 13:56 ` Christoph Lameter
2010-09-17 13:56 ` Christoph Lameter
2010-09-17 14:09 ` Bron Gondwana
2010-09-17 14:09 ` Bron Gondwana
2010-09-17 14:22 ` Christoph Lameter
2010-09-17 14:22 ` Christoph Lameter
2010-09-17 23:01 ` Bron Gondwana
2010-09-17 23:01 ` Bron Gondwana
2010-09-20 9:34 ` Mel Gorman
2010-09-20 9:34 ` Mel Gorman
2010-09-20 23:41 ` Default zone_reclaim_mode = 1 on NUMA kernel is bad forfile/email/web servers Rob Mueller
2010-09-20 23:41 ` Rob Mueller
2010-09-21 9:04 ` Mel Gorman
2010-09-21 9:04 ` Mel Gorman
2010-09-21 14:14 ` Christoph Lameter
2010-09-21 14:14 ` Christoph Lameter
2010-09-22 3:44 ` Rob Mueller
2010-09-22 3:44 ` Rob Mueller
2010-09-27 2:01 ` KOSAKI Motohiro
2010-09-27 2:01 ` KOSAKI Motohiro
2010-09-27 13:53 ` Christoph Lameter
2010-09-27 13:53 ` Christoph Lameter
2010-09-27 23:17 ` Robert Mueller
2010-09-27 23:17 ` Robert Mueller
2010-09-28 12:35 ` Christoph Lameter
2010-09-28 12:35 ` Christoph Lameter
2010-09-28 12:42 ` Bron Gondwana
2010-09-28 12:42 ` Bron Gondwana
2010-09-28 12:49 ` Christoph Lameter [this message]
2010-09-28 12:49 ` Christoph Lameter
2010-09-30 7:05 ` Andi Kleen
2010-09-30 7:05 ` Andi Kleen
2010-10-04 12:45 ` KOSAKI Motohiro
2010-10-04 12:45 ` KOSAKI Motohiro
2010-10-04 13:07 ` Christoph Lameter
2010-10-04 13:07 ` Christoph Lameter
2010-10-05 5:32 ` KOSAKI Motohiro
2010-10-05 5:32 ` KOSAKI Motohiro
2010-10-04 19:43 ` David Rientjes
2010-10-04 19:43 ` David Rientjes
2010-09-21 1:05 ` Default zone_reclaim_mode = 1 on NUMA kernel is bad for file/email/web servers KAMEZAWA Hiroyuki
2010-09-21 1:05 ` KAMEZAWA Hiroyuki
2010-09-27 2:04 ` KOSAKI Motohiro
2010-09-27 2:04 ` KOSAKI Motohiro
2010-09-27 2:06 ` KAMEZAWA Hiroyuki
2010-09-27 2:06 ` KAMEZAWA Hiroyuki
2010-09-23 11:44 ` Balbir Singh
2010-09-23 11:44 ` Balbir Singh
2010-09-30 8:38 ` Bron Gondwana
2010-09-30 8:38 ` Bron Gondwana
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