From: Chris Webb <chris@arachsys.com>
To: Minchan Kim <minchan.kim@gmail.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Wu Fengguang <fengguang.wu@intel.com>
Subject: Re: Over-eager swapping
Date: Tue, 3 Aug 2010 04:31:10 +0100 [thread overview]
Message-ID: <20100803033108.GA23117@arachsys.com> (raw)
In-Reply-To: <AANLkTinnWQA-K6r_+Y+giEC9zs-MbY6GFs8dWadSq0kh@mail.gmail.com>
Minchan Kim <minchan.kim@gmail.com> writes:
> Another possibility is _zone_reclaim_ in NUMA.
> Your working set has many anonymous page.
>
> The zone_reclaim set priority to ZONE_RECLAIM_PRIORITY.
> It can make reclaim mode to lumpy so it can page out anon pages.
>
> Could you show me /proc/sys/vm/[zone_reclaim_mode/min_unmapped_ratio] ?
Sure, no problem. On the machine with the /proc/meminfo I showed earlier,
these are
# cat /proc/sys/vm/zone_reclaim_mode
0
# cat /proc/sys/vm/min_unmapped_ratio
1
I haven't changed either of these from the kernel default.
Many thanks,
Chris.
WARNING: multiple messages have this Message-ID (diff)
From: Chris Webb <chris@arachsys.com>
To: Minchan Kim <minchan.kim@gmail.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Wu Fengguang <fengguang.wu@intel.com>
Subject: Re: Over-eager swapping
Date: Tue, 3 Aug 2010 04:31:10 +0100 [thread overview]
Message-ID: <20100803033108.GA23117@arachsys.com> (raw)
In-Reply-To: <AANLkTinnWQA-K6r_+Y+giEC9zs-MbY6GFs8dWadSq0kh@mail.gmail.com>
Minchan Kim <minchan.kim@gmail.com> writes:
> Another possibility is _zone_reclaim_ in NUMA.
> Your working set has many anonymous page.
>
> The zone_reclaim set priority to ZONE_RECLAIM_PRIORITY.
> It can make reclaim mode to lumpy so it can page out anon pages.
>
> Could you show me /proc/sys/vm/[zone_reclaim_mode/min_unmapped_ratio] ?
Sure, no problem. On the machine with the /proc/meminfo I showed earlier,
these are
# cat /proc/sys/vm/zone_reclaim_mode
0
# cat /proc/sys/vm/min_unmapped_ratio
1
I haven't changed either of these from the kernel default.
Many thanks,
Chris.
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next prev parent reply other threads:[~2010-08-03 3:33 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-02 12:47 Over-eager swapping Chris Webb
2010-08-02 12:47 ` Chris Webb
2010-08-02 23:55 ` Minchan Kim
2010-08-02 23:55 ` Minchan Kim
2010-08-03 3:31 ` Chris Webb [this message]
2010-08-03 3:31 ` Chris Webb
2010-08-03 4:09 ` Minchan Kim
2010-08-03 4:09 ` Minchan Kim
2010-08-03 4:28 ` Wu Fengguang
2010-08-03 4:28 ` Wu Fengguang
2010-08-03 4:47 ` Minchan Kim
2010-08-03 4:47 ` Minchan Kim
2010-08-03 6:39 ` Wu Fengguang
2010-08-03 6:39 ` Wu Fengguang
2010-08-03 21:49 ` Chris Webb
2010-08-03 21:49 ` Chris Webb
2010-08-04 2:21 ` Wu Fengguang
2010-08-04 2:21 ` Wu Fengguang
2010-08-04 3:10 ` Minchan Kim
2010-08-04 3:24 ` Wu Fengguang
2010-08-04 3:24 ` Wu Fengguang
2010-08-04 9:58 ` Chris Webb
2010-08-04 9:58 ` Chris Webb
2010-08-04 11:49 ` Wu Fengguang
2010-08-04 11:49 ` Wu Fengguang
2010-08-04 12:04 ` Chris Webb
2010-08-04 12:04 ` Chris Webb
2010-08-18 14:38 ` Wu Fengguang
2010-08-18 14:38 ` Wu Fengguang
2010-08-18 14:46 ` Chris Webb
2010-08-18 14:46 ` Chris Webb
2010-08-18 15:21 ` Wu Fengguang
2010-08-18 15:21 ` Wu Fengguang
2010-08-18 15:57 ` Christoph Lameter
2010-08-18 15:57 ` Christoph Lameter
2010-08-18 16:20 ` Wu Fengguang
2010-08-18 16:20 ` Wu Fengguang
2010-08-18 15:57 ` Lee Schermerhorn
2010-08-18 15:57 ` Lee Schermerhorn
2010-08-18 15:58 ` Chris Webb
2010-08-18 15:58 ` Chris Webb
2010-08-18 16:13 ` Christoph Lameter
2010-08-18 16:13 ` Christoph Lameter
2010-08-18 16:32 ` Chris Webb
2010-08-18 16:32 ` Chris Webb
2010-08-19 5:16 ` Balbir Singh
2010-08-19 5:16 ` Balbir Singh
2010-08-19 10:20 ` Chris Webb
2010-08-19 10:20 ` Chris Webb
2010-08-19 19:03 ` Christoph Lameter
2010-08-19 19:03 ` Christoph Lameter
2010-08-18 16:13 ` Wu Fengguang
2010-08-18 16:13 ` Wu Fengguang
2010-08-18 16:31 ` Chris Webb
2010-08-18 16:31 ` Chris Webb
2010-08-19 5:13 ` Balbir Singh
2010-08-19 5:13 ` Balbir Singh
2010-08-18 16:45 ` Balbir Singh
2010-08-18 16:45 ` Balbir Singh
2010-08-19 9:25 ` Chris Webb
2010-08-19 9:25 ` Chris Webb
2010-08-19 15:13 ` Balbir Singh
2010-08-19 15:13 ` Balbir Singh
-- strict thread matches above, loose matches on Subject: below --
2012-04-23 9:27 Richard Davies
2012-04-23 9:27 ` Richard Davies
2012-04-23 12:07 ` Zdenek Kaspar
2012-04-23 12:07 ` Zdenek Kaspar
2012-04-23 17:19 ` Dave Hansen
2012-04-23 17:19 ` Dave Hansen
2012-04-24 0:35 ` Minchan Kim
2012-04-24 0:35 ` Minchan Kim
2012-04-24 11:16 ` Peter Lieven
2012-04-24 11:16 ` Peter Lieven
2012-04-25 14:41 ` Rik van Riel
2012-04-25 14:41 ` Rik van Riel
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