From: Johannes Weiner <hannes@cmpxchg.org>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>, Dave Chinner <david@fromorbit.com>,
Chris Mason <chris.mason@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] mm: disallow direct reclaim page writeback
Date: Sat, 17 Apr 2010 01:56:18 +0200 [thread overview]
Message-ID: <20100416235618.GL20640@cmpxchg.org> (raw)
In-Reply-To: <20100415114043.D162.A69D9226@jp.fujitsu.com>
On Thu, Apr 15, 2010 at 11:43:48AM +0900, KOSAKI Motohiro wrote:
> > I already have some patches to remove trivial parts of struct scan_control,
> > namely may_unmap, may_swap, all_unreclaimable and isolate_pages. The rest
> > needs a deeper look.
>
> Seems interesting. but scan_control diet is not so effective. How much
> bytes can we diet by it?
Not much, it cuts 16 bytes on x86 32 bit. The bigger gain is the code
clarification it comes with. There is too much state to keep track of
in reclaim.
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next prev parent reply other threads:[~2010-04-16 23:56 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-13 0:17 Dave Chinner
2010-04-13 8:31 ` KOSAKI Motohiro
2010-04-13 10:29 ` Dave Chinner
2010-04-13 11:39 ` KOSAKI Motohiro
2010-04-13 14:36 ` Dave Chinner
2010-04-14 3:12 ` Dave Chinner
2010-04-14 6:52 ` KOSAKI Motohiro
2010-04-15 1:56 ` Dave Chinner
2010-04-14 6:52 ` KOSAKI Motohiro
2010-04-14 7:36 ` Dave Chinner
2010-04-13 9:58 ` Mel Gorman
2010-04-13 11:19 ` Dave Chinner
2010-04-13 19:34 ` Mel Gorman
2010-04-13 20:20 ` Chris Mason
2010-04-14 1:40 ` Dave Chinner
2010-04-14 4:59 ` KAMEZAWA Hiroyuki
2010-04-14 5:41 ` Dave Chinner
2010-04-14 5:54 ` KOSAKI Motohiro
2010-04-14 6:13 ` Minchan Kim
2010-04-14 7:19 ` Minchan Kim
2010-04-14 9:42 ` KAMEZAWA Hiroyuki
2010-04-14 10:01 ` Minchan Kim
2010-04-14 10:07 ` Mel Gorman
2010-04-14 10:16 ` Minchan Kim
2010-04-14 7:06 ` Dave Chinner
2010-04-14 6:52 ` KOSAKI Motohiro
2010-04-14 7:28 ` Dave Chinner
2010-04-14 8:51 ` Mel Gorman
2010-04-15 1:34 ` Dave Chinner
2010-04-15 4:09 ` KOSAKI Motohiro
2010-04-15 4:11 ` [PATCH 1/4] vmscan: delegate pageout io to flusher thread if current is kswapd KOSAKI Motohiro
2010-04-15 8:05 ` Suleiman Souhlal
2010-04-15 8:17 ` KOSAKI Motohiro
2010-04-15 8:26 ` KOSAKI Motohiro
2010-04-15 10:30 ` Johannes Weiner
2010-04-15 17:24 ` Suleiman Souhlal
2010-04-20 2:56 ` Ying Han
2010-04-15 9:32 ` Dave Chinner
2010-04-15 9:41 ` KOSAKI Motohiro
2010-04-15 17:27 ` Suleiman Souhlal
2010-04-15 23:33 ` Dave Chinner
2010-04-15 23:41 ` Suleiman Souhlal
2010-04-16 9:50 ` Alan Cox
2010-04-17 3:06 ` Dave Chinner
2010-04-15 8:18 ` KOSAKI Motohiro
2010-04-15 10:31 ` Mel Gorman
2010-04-15 11:26 ` KOSAKI Motohiro
2010-04-15 4:13 ` [PATCH 2/4] vmscan: kill prev_priority completely KOSAKI Motohiro
2010-04-15 4:14 ` [PATCH 3/4] vmscan: move priority variable into scan_control KOSAKI Motohiro
2010-04-15 4:15 ` [PATCH 4/4] vmscan: delegate page cleaning io to flusher thread if VM pressure is low KOSAKI Motohiro
2010-04-15 4:35 ` [PATCH] mm: disallow direct reclaim page writeback KOSAKI Motohiro
2010-04-15 6:32 ` Dave Chinner
2010-04-15 6:44 ` KOSAKI Motohiro
2010-04-15 6:58 ` Dave Chinner
2010-04-15 6:20 ` Dave Chinner
2010-04-15 6:35 ` KOSAKI Motohiro
2010-04-15 8:54 ` Dave Chinner
2010-04-15 10:21 ` KOSAKI Motohiro
2010-04-15 10:23 ` [PATCH 1/4] vmscan: simplify shrink_inactive_list() KOSAKI Motohiro
2010-04-15 13:15 ` Mel Gorman
2010-04-15 15:01 ` Andi Kleen
2010-04-15 15:44 ` Mel Gorman
2010-04-15 16:54 ` Andi Kleen
2010-04-15 23:40 ` Dave Chinner
2010-04-16 7:13 ` Andi Kleen
2010-04-16 14:57 ` Mel Gorman
2010-04-17 2:37 ` Dave Chinner
2010-04-16 14:55 ` Mel Gorman
2010-04-15 18:22 ` Valdis.Kletnieks
2010-04-16 9:39 ` Mel Gorman
2010-04-15 10:24 ` [PATCH 2/4] [cleanup] mm: introduce free_pages_prepare KOSAKI Motohiro
2010-04-15 13:33 ` Mel Gorman
2010-04-15 10:24 ` [PATCH 3/4] mm: introduce free_pages_bulk KOSAKI Motohiro
2010-04-15 13:46 ` Mel Gorman
2010-04-15 10:26 ` [PATCH 4/4] vmscan: replace the pagevec in shrink_inactive_list() with list KOSAKI Motohiro
2010-04-15 10:28 ` [PATCH] mm: disallow direct reclaim page writeback Mel Gorman
2010-04-15 13:42 ` Chris Mason
2010-04-15 17:50 ` tytso
2010-04-16 15:05 ` Mel Gorman
2010-04-19 15:15 ` Mel Gorman
2010-04-19 17:38 ` Chris Mason
2010-04-16 4:14 ` Dave Chinner
2010-04-16 15:14 ` Mel Gorman
2010-04-18 0:32 ` Andrew Morton
2010-04-18 19:05 ` Christoph Hellwig
2010-04-18 16:31 ` Andrew Morton
2010-04-18 19:35 ` Christoph Hellwig
2010-04-18 19:11 ` Sorin Faibish
2010-04-18 19:10 ` Sorin Faibish
2010-04-18 21:30 ` James Bottomley
2010-04-18 23:34 ` Sorin Faibish
2010-04-19 3:08 ` tytso
2010-04-19 0:35 ` Dave Chinner
2010-04-19 0:49 ` Arjan van de Ven
2010-04-19 1:08 ` Dave Chinner
2010-04-19 4:32 ` Arjan van de Ven
2010-04-19 15:20 ` Mel Gorman
2010-04-23 1:06 ` Dave Chinner
2010-04-23 10:50 ` Mel Gorman
2010-04-15 14:57 ` Andi Kleen
2010-04-15 2:37 ` Johannes Weiner
2010-04-15 2:43 ` KOSAKI Motohiro
2010-04-16 23:56 ` Johannes Weiner [this message]
2010-04-14 6:52 ` KOSAKI Motohiro
2010-04-14 10:06 ` Andi Kleen
2010-04-14 11:20 ` Chris Mason
2010-04-14 12:15 ` Andi Kleen
2010-04-14 12:32 ` Alan Cox
2010-04-14 12:34 ` Andi Kleen
2010-04-14 13:23 ` Mel Gorman
2010-04-14 14:07 ` Chris Mason
2010-04-14 0:24 ` Minchan Kim
2010-04-14 4:44 ` Dave Chinner
2010-04-14 7:54 ` Minchan Kim
2010-04-16 1:13 ` KAMEZAWA Hiroyuki
2010-04-16 4:18 ` KAMEZAWA Hiroyuki
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