From: Christoph Lameter <cl@linux.com>
To: Dave Chinner <david@fromorbit.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
linux-mm@kvack.org, akpm@linux-foundation.org, npiggin@kernel.dk,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
kamezawa.hiroyu@jp.fujitsu.com, Mel Gorman <mel@csn.ul.ie>,
Minchan Kim <minchan.kim@gmail.com>
Subject: Re: [PATCH 0/3] Unmapped page cache control (v5)
Date: Sun, 3 Apr 2011 13:41:20 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1104031339120.15317@router.home> (raw)
In-Reply-To: <20110402011040.GG6957@dastard>
On Sat, 2 Apr 2011, Dave Chinner wrote:
> Fundamentally, if you just switch off memory reclaim to avoid the
> latencies involved with direct memory reclaim, then all you'll get
> instead is ENOMEM because there's no memory available and none will be
> reclaimed. That's even more fatal for the system than doing reclaim.
Not for my use cases here. No one will die if reclaim happens but its bad
for the bottom line. Reducing the chance of memory reclaim occurring in a
critical section is sufficient.
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next prev parent reply other threads:[~2011-04-03 18:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-30 5:30 Balbir Singh
2011-03-30 5:31 ` [PATCH 1/3] Move zone_reclaim() outside of CONFIG_NUMA (v5) Balbir Singh
2011-03-30 5:31 ` [PATCH 2/3] Refactor zone_reclaim code (v5) Balbir Singh
2011-03-30 5:32 ` [PATCH 3/3] Provide control over unmapped pages (v5) Balbir Singh
2011-03-30 23:35 ` Andrew Morton
2011-03-31 5:52 ` Balbir Singh
2011-03-30 23:36 ` [PATCH 0/3] Unmapped page cache control (v5) Andrew Morton
2011-03-31 5:27 ` Balbir Singh
2011-03-31 5:32 ` Andrew Morton
2011-04-01 17:31 ` Balbir Singh
2011-03-31 5:40 ` KOSAKI Motohiro
2011-03-31 8:28 ` Balbir Singh
2011-04-01 7:56 ` KOSAKI Motohiro
2011-04-01 13:12 ` Balbir Singh
2011-04-01 13:21 ` KOSAKI Motohiro
2011-04-01 18:04 ` Balbir Singh
2011-04-03 9:39 ` KOSAKI Motohiro
2011-03-31 20:13 ` Christoph Lameter
2011-04-01 13:17 ` KOSAKI Motohiro
2011-04-01 14:50 ` Christoph Lameter
2011-04-03 9:44 ` KOSAKI Motohiro
2011-04-03 18:45 ` Christoph Lameter
2011-04-01 23:10 ` Satoru Moriya
2011-04-02 1:10 ` Dave Chinner
2011-04-03 9:32 ` KOSAKI Motohiro
2011-04-04 0:19 ` Dave Chinner
2011-04-04 12:05 ` KOSAKI Motohiro
2011-04-03 18:41 ` Christoph Lameter [this message]
2011-03-31 21:40 ` Dave Chinner
2011-04-01 3:08 ` Balbir Singh
2011-04-01 5:31 ` Dave Chinner
2011-04-01 3:18 ` KOSAKI Motohiro
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