linux-kernel - Re: [ANNOUNCE] RSDL completely fair starvation free interactive cpu scheduler

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Message-ID: <20070308085302.GA18245@elte.hu>
Date:	Thu, 8 Mar 2007 09:53:02 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Con Kolivas <kernel@...ivas.org>
Cc:	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	ck list <ck@....kolivas.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [ANNOUNCE] RSDL completely fair starvation free interactive cpu scheduler


* Con Kolivas <kernel@...ivas.org> wrote:

> This message is to announce the first general public release of the 
> "Rotating Staircase DeadLine" cpu scheduler.
> 
> Based on previous work from the staircase cpu scheduler I set out to 
> design, from scratch, a new scheduling policy design which satisfies 
> every requirement for SCHED_NORMAL (otherwise known as SCHED_OTHER) 
> task management.

cool! I like this even more than i liked your original staircase 
scheduler from 2 years ago :) Lets try what we did back then: put it 
into -mm and see what breaks (if anything). But in general, it is 
becoming increasingly clear that the interactivity estimator is a more 
fragile concept than the built-in quota mechanism of the staircase 
scheduler, so if it works in practice i'm quite in favor of it, even if 
it regresses /some/ workloads.

	Ingo
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