linux-kernel - Re: [ckrm-tech] RFC: Memory Controller

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Message-Id: <1162318586.11421.12.camel@dyn9047017100.beaverton.ibm.com>
Date:	Tue, 31 Oct 2006 10:16:26 -0800
From:	Badari Pulavarty <pbadari@...ibm.com>
To:	Paul Menage <menage@...gle.com>
Cc:	balbir@...ibm.com, dev@...nvz.org, vatsa@...ibm.com,
	sekharan@...ibm.com, ckrm-tech@...ts.sourceforge.net,
	haveblue@...ibm.com, lkml <linux-kernel@...r.kernel.org>,
	pj@....com, matthltc@...ibm.com, dipankar@...ibm.com,
	rohitseth@...gle.com
Subject: Re: [ckrm-tech] RFC: Memory Controller

On Tue, 2006-10-31 at 09:22 -0800, Paul Menage wrote:

> >
> > Hmm... interesting. Why do you think its impossible, what are the kinds of
> > issues you've run into?
> >
> 
> Issues such as:
> 
> - determining from userspace how much of the page cache is really
> "free" memory that can be given out to new jobs without impacting the
> performance of existing jobs
> 
> - determining which job on the system is flooding the page cache with
> dirty buffers
> 

Interesting .. these are exactly questions our database people
have been us asking for few years :)

Thanks,
Badari

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