From: Christoph Lameter <cl@linux.com>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Simon Kirby <sim@hostway.ca>, Mel Gorman <mel@csn.ul.ie>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org
Subject: Re: Free memory never fully used, swapping
Date: Thu, 2 Dec 2010 08:39:55 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.00.1012020836590.27798@router.home> (raw)
In-Reply-To: <20101202093337.1573.A69D9226@jp.fujitsu.com>
On Thu, 2 Dec 2010, KOSAKI Motohiro wrote:
> So I think we have multiple option
>
> 1) reduce slub_max_order and slub only use safely order
> 2) slub don't invoke reclaim when high order tryal allocation
> (ie turn off GFP_WAIT and turn on GFP_NOKSWAPD)
> 3) slub pass new hint to reclaim and reclaim don't work so aggressively if
> such hint is passwd.
>
>
> So I have one question. I thought (2) is most nature. but now slub doesn't.
2) so far has not been available. GFP_NOKSWAPD does not exist upstream.
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next prev parent reply other threads:[~2010-12-02 14:39 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20101115195246.GB17387@hostway.ca>
2010-11-22 23:44 ` Andrew Morton
2010-11-23 1:34 ` Simon Kirby
2010-11-23 8:35 ` Dave Hansen
2010-11-24 8:46 ` Simon Kirby
2010-11-25 1:07 ` Shaohua Li
2010-11-25 9:03 ` Simon Kirby
2010-11-25 10:18 ` KOSAKI Motohiro
2010-11-25 17:13 ` Simon Kirby
2010-11-26 0:33 ` KOSAKI Motohiro
2010-11-25 10:51 ` KOSAKI Motohiro
2010-11-25 16:15 ` Mel Gorman
2010-11-26 2:00 ` Shaohua Li
2010-11-26 2:31 ` KOSAKI Motohiro
2010-11-26 2:40 ` Shaohua Li
2010-11-26 9:18 ` KOSAKI Motohiro
2010-11-29 1:03 ` Shaohua Li
2010-11-29 1:13 ` KOSAKI Motohiro
2010-11-26 0:07 ` KOSAKI Motohiro
2010-11-25 16:12 ` Mel Gorman
2010-11-26 1:05 ` Shaohua Li
2010-11-26 1:25 ` Mel Gorman
2010-11-26 2:05 ` Shaohua Li
2010-11-26 11:03 ` KOSAKI Motohiro
2010-11-26 11:11 ` Mel Gorman
2010-11-30 6:31 ` KOSAKI Motohiro
2010-11-30 10:41 ` Mel Gorman
2010-11-30 11:19 ` KOSAKI Motohiro
2010-11-30 8:22 ` Simon Kirby
2010-11-29 9:31 ` KOSAKI Motohiro
2010-11-23 10:04 ` Mel Gorman
2010-11-24 6:43 ` Simon Kirby
2010-11-24 9:27 ` Mel Gorman
2010-11-24 19:17 ` Simon Kirby
2010-11-25 1:18 ` KOSAKI Motohiro
2010-11-26 15:48 ` Christoph Lameter
2010-11-30 0:25 ` KOSAKI Motohiro
2010-11-30 19:10 ` Christoph Lameter
2010-12-01 10:17 ` KOSAKI Motohiro
2010-12-01 15:29 ` Christoph Lameter
2010-12-02 2:44 ` KOSAKI Motohiro
2010-12-02 14:39 ` Christoph Lameter [this message]
2010-11-30 9:13 ` Simon Kirby
2010-11-30 19:13 ` Christoph Lameter
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