linux-kernel - Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem

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Message-ID: <4df04b840702241747ne903699w636d37b40351b752@mail.gmail.com>
Date:	Sun, 25 Feb 2007 09:47:41 +0800
From:	"yunfeng zhang" <zyf.zeroos@...il.com>
To:	"Rik van Riel" <riel@...hat.com>
Cc:	linux-kernel@...r.kernel.org, "Hugh Dickins" <hugh@...itas.com>,
	linux-mm@...ck.org
Subject: Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem

To a two-CPU architecture, its page distribution just like theoretically

ABABAB....

So every readahead of A process will create 4 unused readahead pages unless you
are sure B will resume soon.

Have you ever compared the results among UP, 2 or 4-CPU?
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