linux-kernel - Re: [PATCH] vmscan: bail out of page reclaim after swap_cluster

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Date:	Mon, 1 Dec 2008 07:40:41 -0600 (CST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Rik van Riel <riel@...hat.com>
cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, mel@....ul.ie
Subject: Re: [PATCH] vmscan: bail out of page reclaim after swap_cluster_max
 pages

On Sat, 29 Nov 2008, Rik van Riel wrote:

> When using mmap or memory hogs writing to swap, applications
> will not be throttled by the "too many dirty pages" logic,
> but may instead end up being throttled in the direct reclaim
> path instead.

The too many dirty pages logic will throttle applications dirtying
mmapped pages these days.



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