From: Christoph Lameter <cl@linux-foundation.org>
To: Mel Gorman <mel@csn.ul.ie>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Andrew Morton <akpm@linux-foundation.org>,
riel@redhat.com, fengguang.wu@intel.com, linuxram@us.ibm.com,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [PATCH 0/3] Fix malloc() stall in zone_reclaim() and bring behaviour more in line with expectations V3
Date: Tue, 16 Jun 2009 10:51:05 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.1.10.0906161049180.26093@gentwo.org> (raw)
In-Reply-To: <20090616134423.GD14241@csn.ul.ie>
On Tue, 16 Jun 2009, Mel Gorman wrote:
> I don't have a particular workload in mind to be perfectly honest. I'm just not
> convinced of the wisdom of trying to unmap pages by default in zone_reclaim()
> just because the NUMA distances happen to be large.
zone reclaim = 1 is supposed to be light weight with minimal impact. The
intend was just to remove potentially unused pagecache pages so that node
local allocations can succeed again. So lets not unmap pages.
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next prev parent reply other threads:[~2009-06-16 14:50 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-11 10:47 Mel Gorman
2009-06-11 10:47 ` [PATCH 1/3] Properly account for the number of page cache pages zone_reclaim() can reclaim Mel Gorman
2009-06-11 11:37 ` KOSAKI Motohiro
2009-06-12 10:17 ` Mel Gorman
2009-06-15 4:51 ` KOSAKI Motohiro
2009-06-15 10:05 ` Mel Gorman
2009-06-11 10:47 ` [PATCH 2/3] Do not unconditionally treat zones that fail zone_reclaim() as full Mel Gorman
2009-06-11 13:48 ` Christoph Lameter
2009-06-12 10:36 ` Mel Gorman
2009-06-12 15:44 ` Andrew Morton
2009-06-15 10:28 ` Mel Gorman
2009-06-15 15:58 ` Andrew Morton
2009-06-11 10:47 ` [PATCH 3/3] Count the number of times zone_reclaim() scans and fails Mel Gorman
2009-06-11 11:33 ` KOSAKI Motohiro
2009-06-15 21:19 ` Andrew Morton
2009-06-16 9:05 ` Mel Gorman
2009-06-11 23:30 ` [PATCH 0/3] Fix malloc() stall in zone_reclaim() and bring behaviour more in line with expectations V3 Andrew Morton
2009-06-12 11:04 ` Mel Gorman
2009-06-12 16:08 ` Andrew Morton
2009-06-15 9:42 ` KOSAKI Motohiro
2009-06-15 10:56 ` Mel Gorman
2009-06-15 15:01 ` Christoph Lameter
2009-06-15 15:25 ` Mel Gorman
2009-06-16 12:08 ` KOSAKI Motohiro
2009-06-16 12:20 ` Mel Gorman
2009-06-16 12:30 ` KOSAKI Motohiro
2009-06-16 12:57 ` KOSAKI Motohiro
2009-06-16 13:44 ` Mel Gorman
2009-06-16 14:51 ` Christoph Lameter [this message]
2009-06-17 10:06 ` KOSAKI Motohiro
2009-06-17 12:03 ` Mel Gorman
2009-06-17 18:48 ` Christoph Lameter
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