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
Date: Mon, 5 Dec 2005 09:48:42 +0800 [thread overview]
Message-ID: <20051205014842.GA5103@mail.ustc.edu.cn> (raw)
In-Reply-To: <17299.1331.368159.374754@gargle.gargle.HOWL>
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
next prev parent reply other threads:[~2005-12-05 1:34 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-03 7:14 [PATCH 00/16] Adaptive read-ahead V9 Wu Fengguang
2005-12-03 7:14 ` [PATCH 01/16] mm: delayed page activation Wu Fengguang
2005-12-04 12:11 ` Nikita Danilov
2005-12-04 13:48 ` Wu Fengguang
2005-12-04 15:03 ` Nikita Danilov
2005-12-04 15:37 ` Help!Unable to handle kernel NULL pointer tony
2005-12-04 19:10 ` [PATCH 01/16] mm: delayed page activation Peter Zijlstra
2005-12-05 1:48 ` Wu Fengguang [this message]
2005-12-06 17:55 ` Nikita Danilov
2005-12-07 1:42 ` Wu Fengguang
2005-12-07 9:46 ` Andrew Morton
2005-12-07 10:36 ` Wu Fengguang
2005-12-07 12:44 ` Nikita Danilov
2005-12-07 13:53 ` Wu Fengguang
2005-12-03 7:14 ` [PATCH 02/16] radixtree: sync with mainline Wu Fengguang
2005-12-04 23:57 ` Andrew Morton
2005-12-05 1:43 ` Wu Fengguang
2005-12-05 4:05 ` Wu Fengguang
2005-12-05 17:22 ` Christoph Lameter
2005-12-05 10:44 ` Wu Fengguang
2005-12-05 17:24 ` Christoph Lameter
2005-12-06 2:23 ` Wu Fengguang
2005-12-03 7:14 ` [PATCH 03/16] radixtree: look-aside cache Wu Fengguang
2005-12-03 7:14 ` [PATCH 04/16] readahead: some preparation Wu Fengguang
2005-12-03 7:14 ` [PATCH 05/16] readahead: call scheme Wu Fengguang
2005-12-03 7:14 ` [PATCH 06/16] readahead: parameters Wu Fengguang
2005-12-03 7:14 ` [PATCH 07/16] readahead: state based method Wu Fengguang
2005-12-03 7:14 ` [PATCH 08/16] readahead: context " Wu Fengguang
2005-12-03 7:14 ` [PATCH 09/16] readahead: read-around method for mmap file Wu Fengguang
2005-12-03 7:14 ` [PATCH 10/16] readahead: other methods Wu Fengguang
2005-12-03 7:14 ` [PATCH 11/16] readahead: detect and rescue live pages Wu Fengguang
2005-12-03 7:14 ` [PATCH 12/16] readahead: events accounting Wu Fengguang
2005-12-03 7:14 ` [PATCH 13/16] readahead: laptop mode support Wu Fengguang
2005-12-03 7:14 ` [PATCH 14/16] readahead: disable look-ahead for loopback file Wu Fengguang
2005-12-03 7:14 ` [PATCH 15/16] readahead: nfsd support Wu Fengguang
2005-12-03 7:15 ` [PATCH 16/16] io: prevent too much latency in the read-ahead code Wu Fengguang
-- strict thread matches above, loose matches on Subject: below --
2005-11-09 13:49 [PATCH 00/16] Adaptive read-ahead V7 Wu Fengguang
2005-11-09 13:49 ` [PATCH 01/16] mm: delayed page activation Wu Fengguang
2005-11-10 0:21 ` Nick Piggin
2005-11-10 3:15 ` Wu Fengguang
2005-11-10 9:17 ` Peter Zijlstra
2005-11-10 10:30 ` Wu Fengguang
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