From: Con Kolivas <kernel@kolivas.org>
To: Peter Williams <pwil3058@bigpond.net.au>
Subject: Re: [RFC 0/5] sched: Add CPU rate caps
Date: Fri, 26 May 2006 20:41:07 +1000
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       Linux Kernel <linux-kernel@vger.kernel.org>,
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       Rene Herman <rene.herman@keyaccess.nl>
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On Friday 26 May 2006 14:20, Peter Williams wrote:
> These patches implement CPU usage rate limits for tasks.

Nice :)

> Although the rlimit mechanism already has a CPU usage limit (RLIMIT_CPU)
> it is a total usage limit and therefore (to my mind) not very useful.
> These patches provide an alternative whereby the (recent) average CPU
> usage rate of a task can be limited to a (per task) specified proportion
> of a single CPU's capacity.  The limits are specified in parts per
> thousand and come in two varieties -- hard and soft.

Why 1000? I doubt that degree of accuracy is possible in cpu accounting and 
accuracy or even required. To me it would seem to make more sense to just be 
a percentage.

-- 
-ck
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