linux-kernel - Re: [PATCH] mm: evict streaming IO cache first

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Message-ID: <2f11576a0811162303t51609098o6cd765c04d791581@mail.gmail.com>
Date:	Mon, 17 Nov 2008 16:03:48 +0900
From:	"KOSAKI Motohiro" <kosaki.motohiro@...fujitsu.com>
To:	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Rik van Riel" <riel@...hat.com>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	"Gene Heskett" <gene.heskett@...il.com>
Subject: Re: [PATCH] mm: evict streaming IO cache first

>> then, few anon pages swaped out althouth memory pressure isn't so heavy.
>>
> "few" ?
> 85Mbytes of used swap while 1.2GBytes of free memory in Gene Heskett's report.
> Hmm..

because accumuration of a days.


> How about resetting zone->recent_scanned/rotated to be some value calculated from
> INACTIVE_ANON/INACTIVE_FILE at some time (when the system is enough idle) ?

in get_scan_ratio()
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