linux-kernel - Re: Page Cache Question

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Date:	Tue, 14 Aug 2007 22:38:07 +0800
From:	Eugene Teo <eugeneteo@...nel.sg>
To:	Helge Hafting <helge.hafting@...el.hist.no>
Cc:	Adnan Khaleel <akhaleel2001@...oo.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Page Cache Question

<quote sender="Helge Hafting">
> Adnan Khaleel wrote:
>> I'm looking for a way to disable the page cache for an
>> experimental NUMA system running the 2.6.17 kernel. I would prefer to
>> only disable the page cache for my process and still have it be enabled
>> by the rest of the system. Is there an easy way of doing this?
>> Alternatively, I would be fine disabling the Page Cache altogether as 
>> well.
>>   
> Assuming what you really mean is that you don't want to cache
> file i/o for that process - try opening files with O_DIRECT.

You will probably find this tool useful:
http://userweb.kernel.org/~akpm/pagecache-management/

"... a little tool which permits the management of the pagecache usage of
arbitrary applications.  Effectively it prevents the targetted application
from using any pagecache at all."

Eugene
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