linux-kernel - Re: [patch 10/20] SEQ replacement for anonymous pages

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Message-Id: <20071219140904.9858.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Wed, 19 Dec 2007 14:17:53 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	kosaki.motohiro@...fujitsu.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, lee.shermerhorn@...com
Subject: Re: [patch 10/20] SEQ replacement for anonymous pages

Hi Rik-san,

> To keep the maximum amount of necessary work reasonable, we scale the
> active to inactive ratio with the size of memory, using the formula
> active:inactive ratio = sqrt(memory in GB * 10).

Great.

why do you think best formula is sqrt(GB*10)?
please tell me if you don't mind.

and i have a bit worry to it works well or not on small systems.
because it is indicate 1:1 ratio on less than 100MB memory system.
Do you think this viewpoint?


/kosaki

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