Message-ID: <46381BFD.8060301@linux.vnet.ibm.com>
Date: Wed, 02 May 2007 10:35:01 +0530
From: Balbir Singh <balbir@linux.vnet.ibm.com>
Reply-To: balbir@linux.vnet.ibm.com
Organization: IBM
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: Bill Irwin <bill.irwin@oracle.com>, Theodore Tso <tytso@mit.edu>,
       Ulrich Drepper <drepper@gmail.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       Eric Dumazet <dada1@cosmosbay.com>, linux-kernel@vger.kernel.org,
       wli@holomorphy.com
Subject: Re: per-thread rusage
References: <20070404172931.GM2986@holomorphy.com> <20070404194829.1a93d8fd.dada1@cosmosbay.com> <20070404181050.GN2986@holomorphy.com> <20070409165315.4704021f.akpm@linux-foundation.org> <20070410004201.GA2986@holomorphy.com> <20070501172937.GQ26598@holomorphy.com> <a36005b50705011139p361dbc46ube0da5e42955f8b0@mail.gmail.com> <20070501202456.GR26598@holomorphy.com> <a36005b50705011510k4cd7873dr3fb8206c0f107169@mail.gmail.com> <20070501222724.GG26093@thunk.org> <20070501223440.GT26598@holomorphy.com> <20070502000458.2a7885d9@the-village.bc.nu>
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Alan Cox wrote:
>> I just so happen to think we should implement a variety of CPU resource
>> limits beyond what we now do, so this, too, interests me.
> 
> Agreed - and make them all 64bit while doing the cleanup. One thing
> several Unixen have we don't for 32bi boxes is a proper set of 64bit
> resource handling for memory/file etc.
> 
> We could also start using the CPU facilities to enforce some of
> the really interesting real time process ones (like main memory
> bandwidth) that at the moment we have no control over and can lead to
> very unfair behaviour.
> 
> Alan

Hi, Alan,

Thanks for bringing this up. There are a couple of patches posted to
lkml for RSS control (unmapped page cache controller under development).

http://lwn.net/Articles/223829/

and the new enhanced verison by Pavel at

http://www.opensubscriber.com/message/linux-kernel@vger.kernel.org/6456480.html

We would appreciate any feedback to help us move the work forward and
make the code ready for acceptance

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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