From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: David Rientjes <rientjes@google.com>
Cc: kosaki.motohiro@jp.fujitsu.com, Christoph Lameter <cl@linux.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
Mel Gorman <mel@csn.ul.ie>, Rob Mueller <robm@fastmail.fm>,
linux-kernel@vger.kernel.org, Bron Gondwana <brong@fastmail.fm>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [resend][PATCH] mm: increase RECLAIM_DISTANCE to 30
Date: Tue, 12 Oct 2010 11:17:04 +0900 (JST) [thread overview]
Message-ID: <20101012111451.AD2E.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1010111907190.27825@chino.kir.corp.google.com>
> On Fri, 8 Oct 2010, Christoph Lameter wrote:
>
> > It implies that zone reclaim is going to be automatically enabled if the
> > maximum latency to the memory farthest away is 3 times or more that of a
> > local memory access.
> >
>
> It doesn't determine what the maximum latency to that memory is, it relies
> on whatever was defined in the SLIT; the only semantics of that distance
> comes from the ACPI spec that states those distances are relative to the
> local distance of 10.
Right. but do we need to consider fake SLIT case? I know actually such bogus
slit are there. but I haven't seen such fake SLIT made serious trouble.
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next prev parent reply other threads:[~2010-10-12 2:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-08 1:48 KOSAKI Motohiro
2010-10-08 9:04 ` Balbir Singh
2010-10-08 15:45 ` Christoph Lameter
2010-10-08 16:59 ` Balbir Singh
2010-10-08 17:56 ` Christoph Lameter
2010-10-12 2:11 ` David Rientjes
2010-10-12 2:17 ` KOSAKI Motohiro [this message]
2010-10-12 3:12 ` David Rientjes
2010-10-12 4:07 ` KOSAKI Motohiro
2010-10-12 6:41 ` Balbir Singh
2010-10-12 1:55 ` KOSAKI Motohiro
2010-10-08 1:48 KOSAKI Motohiro
2010-10-25 3:24 KOSAKI Motohiro
2010-10-25 4:35 ` KAMEZAWA Hiroyuki
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