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From: "yunfeng zhang" <zyf.zeroos@gmail.com>
To: "Rik van Riel" <riel@redhat.com>
Cc: linux-kernel@vger.kernel.org, "Hugh Dickins" <hugh@veritas.com>,
	linux-mm@kvack.org
Subject: Re: [PATCH 2.6.20-rc5 1/1] MM: enhance Linux swap subsystem
Date: Sun, 25 Feb 2007 09:47:41 +0800	[thread overview]
Message-ID: <4df04b840702241747ne903699w636d37b40351b752@mail.gmail.com> (raw)
In-Reply-To: <45DE6080.6030904@redhat.com>

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?

  reply	other threads:[~2007-02-25  1:47 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-22  7:09 yunfeng zhang
2007-01-22 10:21 ` Pavel Machek
2007-01-22 20:00 ` Al Boldi
2007-01-23  4:21   ` yunfeng zhang
2007-01-23  5:08     ` yunfeng zhang
2007-01-24 21:15       ` Hugh Dickins
2007-01-26  4:58         ` yunfeng zhang
2007-01-29  5:29         ` yunfeng zhang
     [not found]         ` <4df04b840701301852i41687edfl1462c4ca3344431c@mail.gmail.com>
     [not found]           ` <Pine.LNX.4.64.0701312022340.26857@blonde.wat.veritas.com>
2007-02-13  5:52             ` yunfeng zhang
2007-02-20  9:06               ` yunfeng zhang
2007-02-22  1:58                 ` yunfeng zhang
2007-02-22  2:19                   ` Rik van Riel
2007-02-23  2:31                     ` yunfeng zhang
2007-02-23  3:33                       ` Rik van Riel
2007-02-25  1:47                         ` yunfeng zhang [this message]
2007-08-23  9:47                           ` yunfeng zhang
2007-08-23 15:56                             ` Randy Dunlap

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