From: William Lee Irwin III <wli@holomorphy.com>
To: Ray Bryant <raybry@sgi.com>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
riel@redhat.com, piggin@cyberone.com.au, kernel@kolivas.org
Subject: Re: swapping and the value of /proc/sys/vm/swappiness
Date: Mon, 6 Sep 2004 15:37:24 -0700 [thread overview]
Message-ID: <20040906223724.GH3106@holomorphy.com> (raw)
In-Reply-To: <413CD4FF.8070408@sgi.com>
On Mon, Sep 06, 2004 at 04:22:07PM -0500, Ray Bryant wrote:
> We were planning on suggesting that such users set swappiness=0 to give
> user pages priority over the page cache pages. But it doesn't look like
> that works very well in the more recent kernels.
> One (perhaps) desirable feature would be for intermediate values of
> swappiness to have behavior in between the two extremes (mapped pages have
> higher priority vs page cache pages having priority over unreferenced
> mapped pages),
> so that one would have finer grain control over the amount of swap used.
> I'm not sure how to achieve such a goal, however. :-)
Priority paging again? A perennial suggestion.
On Mon, Sep 06, 2004 at 04:22:07PM -0500, Ray Bryant wrote:
> On a separate issue, the response to my proposal for a mempolicy to control
> allocation of page cache pages has been <ahem> underwhelming.
> (See: http://marc.theaimsgroup.com/?l=linux-mm&m=109416852113561&w=2
> and http://marc.theaimsgroup.com/?l=linux-mm&m=109416852416997&w=2 )
> I wonder if this is because I just posted it to linux-mm or its not fleshed
> out enough yet to be interesting?
It was very noncontroversial. Since it's apparently useful to someone
and generally low-impact it should probably be merged.
-- wli
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next prev parent reply other threads:[~2004-09-06 22:37 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-06 19:11 Ray Bryant
2004-09-06 20:10 ` Andrew Morton
2004-09-06 21:22 ` Ray Bryant
2004-09-06 21:36 ` Andrew Morton
2004-09-06 22:37 ` William Lee Irwin III [this message]
2004-09-06 23:51 ` Nick Piggin
2004-09-07 0:31 ` Ray Bryant
2004-09-06 22:48 ` William Lee Irwin III
2004-09-06 23:09 ` Con Kolivas
2004-09-06 23:27 ` Andrew Morton
2004-09-06 23:34 ` Con Kolivas
2004-09-07 0:03 ` Marcelo Tosatti
2004-09-07 1:34 ` Con Kolivas
2004-09-07 10:38 ` Nick Piggin
2004-09-07 10:56 ` Con Kolivas
2004-09-08 16:45 ` Marcelo Tosatti
2004-09-09 1:12 ` Con Kolivas
2004-09-07 17:03 ` Ray Bryant
2004-09-07 21:20 ` Marcelo Tosatti
2004-09-08 2:18 ` Marcelo Tosatti
2004-09-08 14:20 ` Ray Bryant
2004-09-08 16:54 ` Marcelo Tosatti
2004-09-08 19:35 ` Ray Bryant
2004-09-08 19:30 ` Marcelo Tosatti
2004-09-09 3:06 ` Ray Bryant
2004-09-09 2:14 ` Marcelo Tosatti
2004-09-09 14:21 ` Ray Bryant
2004-09-09 3:09 ` William Lee Irwin III
2004-09-09 14:16 ` Ray Bryant
2004-09-09 17:23 ` William Lee Irwin III
2004-09-28 1:54 ` Ray Bryant
2004-09-28 3:36 ` Nick Piggin
2004-09-29 0:36 ` Nick Piggin
2004-09-29 4:23 ` Ray Bryant
2004-09-30 17:15 ` Ray Bryant
2004-09-08 17:31 ` Martin J. Bligh
2004-09-08 18:04 ` Rik van Riel
2004-09-08 19:50 ` Diego Calleja
2004-09-08 21:10 ` Martin J. Bligh
2004-09-08 21:55 ` Diego Calleja
2004-09-08 22:20 ` Martin J. Bligh
2004-09-08 23:22 ` Rik van Riel
2004-09-08 22:28 ` Alan Cox
2004-09-08 23:42 ` Martin J. Bligh
2004-09-08 19:54 ` Ray Bryant
2004-09-08 15:19 ` Ray Bryant
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