linux-kernel - Re: [RFC][PATCH] page reclaim throttle take2

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Message-Id: <20080227143301.4252.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Wed, 27 Feb 2008 14:33:57 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Rik van Riel <riel@...hat.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Nick Piggin <npiggin@...e.de>
Subject: Re: [RFC][PATCH] page reclaim throttle take2

Hi David,

> I disagree, the config option is indeed static but so is the NUMA topology 
> of the machine.  It represents the maximum number of page reclaim threads 
> that should be allowed for that specific topology; a maximum should not 
> need to be redefined with yet another sysctl and should remain independent 
> of various workloads.

ok.

> However, I would recommend adding the word "MAX" to the config option.

MAX_PARALLEL_RECLAIM_TASK is good word?

- kosaki

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