linux-kernel - Re: [PATCH 4/4] zone_reclaim

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Message-Id: <20090519115645.4EB7.A69D9226@jp.fujitsu.com>
Date:	Tue, 19 May 2009 11:57:38 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Wu Fengguang <fengguang.wu@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	"Zhang, Yanmin" <yanmin.zhang@...el.com>
Subject: Re: [PATCH 4/4] zone_reclaim_mode is always 0 by default

nit fix.

> In general, the feature of workload depended don't fit default option.
> we can't know end-user run what workload anyway.
> 
> Fortunately (or Unfortunately), typical workload and machine size had

typical workload and machine size and remote node distance

> significant mutuality.
> Thus, the current default setting calculation had worked well in past days.
> 
> Now, it was breaked. What should we do?
> 
> 
> 
> Yanmin, We know 99% linux people use intel cpu and you are one of
> most hard repeated testing guy in lkml and you have much test.
> May I ask your tested machine and benchmark? 
> 
> if zone_reclaim=0 tendency workload is much than zone_reclaim=1 tendency workload,
>  we can drop our afraid and we would prioritize your opinion, of cource.
> 
> thanks.
> 
> 



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