linux-kernel - Re: Ability to limit or disable page caching?

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Date:	Mon, 05 May 2008 15:03:15 -0600
From:	"Chris Friesen" <cfriesen@...tel.com>
To:	Rik van Riel <riel@...hat.com>
CC:	Kevin Burton <burton@...lrank.com>,
	FD Cami <francois.cami@...e.fr>, linux-kernel@...r.kernel.org
Subject: Re: Ability to limit or disable page caching?

Rik van Riel wrote:
> On Mon, 5 May 2008 12:42:31 -0700
> "Kevin Burton" <burton@...lrank.com> wrote:

>>What I want to do is either disable the page cache entirely or just
>>tell the OS to cache at max 10% of the available memory.

> I have no such tunable in my code (yet), because I would like the
> kernel to do the right thing automatically.

Given that the kernel doesn't currently do the right thing, what about 
providing a tuneable as a temporary fix for people that are currently 
having problems?

Or are you concerned that they will then not be as willing to test the 
automatic behaviour?

Chris
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