linux-kernel - Re: [patch 0/5] refault distance-based file cache sizing

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Date:	Fri, 18 May 2012 11:07:36 -0400
From:	Rik van Riel <riel@...hat.com>
To:	nai.xia@...il.com
CC:	Johannes Weiner <hannes@...xchg.org>, linux-mm@...ck.org,
	Andrea Arcangeli <aarcange@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Mel Gorman <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Hugh Dickins <hughd@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [patch 0/5] refault distance-based file cache sizing

On 05/17/2012 11:44 PM, Nai Xia wrote:

> But I do think that Clock-pro deserves its credit, since after all
> it's that research work firstly brought the idea of "refault/reuse
> distance" to the kernel community.

The ARC people did that, too.

> Further more, it's also good
> to let the researchers and the community to together have some
> brain-storm of this problem if it's really hard to deal with in
> reality.

How much are researchers interested in the real world
constraints that OS developers have to deal with?

Often scalability is as much of a goal as being good
at selecting the right page to replace...

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