Date: Mon, 5 Dec 2005 09:48:42 +0800
From: Wu Fengguang <wfg@mail.ustc.edu.cn>
To: Nikita Danilov <nikita@clusterfs.com>
Cc: Andrew Morton <akpm@osdl.org>,
       Linux Kernel Mailing List <Linux-Kernel@vger.kernel.org>
Subject: Re: [PATCH 01/16] mm: delayed page activation
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	Nikita Danilov <nikita@clusterfs.com>,
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On Sun, Dec 04, 2005 at 06:03:15PM +0300, Nikita Danilov wrote:
>  > inter-reference distance, and therefore should be better protected(if ignore
>  > possible read-ahead effects). If we move re-accessed pages immediately into
>  > active_list, we are pushing them closer to danger of eviction.
> 
> Huh? Pages in the active list are closer to the eviction? If it is
> really so, then CLOCK-pro hijacks the meaning of active list in a very
> unintuitive way. In the current MM active list is supposed to contain
> hot pages that will be evicted last.

The page is going to active list anyway. So its remaining lifetime in inactive
list is killed by the early move.

Thanks,
Wu
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