linux-kernel - Re: [RFC] Limit the size of the pagecache

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Message-ID: <Pine.LNX.4.64.0701232028520.6820@schroedinger.engr.sgi.com>
Date:	Tue, 23 Jan 2007 20:30:16 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
cc:	aubreylee@...il.com, svaidy@...ux.vnet.ibm.com,
	nickpiggin@...oo.com.au, rgetz@...ckfin.uclinux.org,
	Michael.Hennerich@...log.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC] Limit the size of the pagecache

On Wed, 24 Jan 2007, KAMEZAWA Hiroyuki wrote:

> I don't prefer to cause zone fallback by this.
> This may use ZONE_DMA before exhausing ZONE_NORMAL (ia64),

Hmmm... We could use node_page_state instead of zone_page_state.

> Very rapid page allocation can eats some amount of lower zone.

One queston: For what purpose would you be using the page cache size 
limitation?

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