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Message-ID: <661de9470605280742o70fb6fc9g34ead234d377a1e0@mail.gmail.com>
Date: Sun, 28 May 2006 20:12:03 +0530
From: "Balbir Singh" <balbir@in.ibm.com>
Reply-To: balbir@in.ibm.com
To: "Peter Williams" <pwil3058@bigpond.net.au>
Subject: Re: [RFC 2/5] sched: Add CPU rate soft caps
Cc: "Mike Galbraith" <efault@gmx.de>, "Con Kolivas" <kernel@kolivas.org>,
       "Linux Kernel" <linux-kernel@vger.kernel.org>,
       "Kingsley Cheung" <kingsley@aurema.com>, "Ingo Molnar" <mingo@elte.hu>,
       "Rene Herman" <rene.herman@keyaccess.nl>
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On 5/28/06, Peter Williams <pwil3058@bigpond.net.au> wrote:
<snip>

> >
> > That behaviour would be fair.
>
> Caps aren't about being fair.  In fact, giving a task a cap is an
> explicit instruction to the scheduler that the task should be treated
> unfairly in some circumstances (namely when it's exceeding that cap).
>
> Similarly, the interactive bonus mechanism is not about fairness either.
>   It's about giving tasks that are thought to be interactive an unfair
> advantage so that the user experiences good responsiveness.
>

I understand that, I was talking about fairness between capped tasks
and what might be considered fair or intutive between capped tasks and
regular tasks. Of course, the last point is debatable ;)

Balbir
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