linux-kernel - Re: Linux 2.6.31 - very swap-happy with plenty of free RAM

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Message-ID: <4B0DDFDA.1030905@redhat.com>
Date:	Wed, 25 Nov 2009 20:54:34 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Dan Merillat <dan.merillat@...il.com>
CC:	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	linux-kernel@...r.kernel.org, Norbert Preining <preining@...ic.at>,
	Tomasz Chmielewski <mangoo@...g.org>,
	Sven-Haegar Koch <haegar@...net.de>,
	Dave Chinner <david@...morbit.com>
Subject: Re: Linux 2.6.31 - very swap-happy with plenty of free RAM

On 11/25/2009 06:13 PM, Dan Merillat wrote:
> On Thu, Nov 19, 2009 at 9:36 AM, KOSAKI Motohiro
> <kosaki.motohiro@...il.com>  wrote:
>    
>> Hi Dan,
>>
>> Umm, very strange.
>> I made two debug patch. can you please apply it and post following
>> command output?
>>
>> % cat /proc/meminfo
>> % cat /proc/vmstat
>> % cat /proc/zoneinfo
>> # cat /proc/filecache | sort -nr -k3 |head -30
>>      
> As I said I can't give you the filecache info, but here's two  datasets
>
> The  amount of cache is due to 1.5gb of mmaped vmware guest backing files.
>
> First, 400mb ram "free" but still swapping out - usable with a few
> pauses as apps swap back in.
>
>    
Can you try out the patch from
http://lkml.org/lkml/2009/11/25/467 ?
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