linux-kernel - Re: [RFC][PATCH 0/11] sched: SCHED

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Date:	Wed, 14 Apr 2010 12:17:39 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Raistlin <raistlin@...ux.it>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Chris Friesen <cfriesen@...tel.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Darren Hart <darren@...art.com>,
	Henrik Austad <henrik@...tad.us>,
	Johan Eker <johan.eker@...csson.com>,
	"p.faure" <p.faure@...tech.ch>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Claudio Scordino <claudio@...dence.eu.com>,
	michael trimarchi <trimarchi@...is.sssup.it>,
	Fabio Checconi <fabio@...dalf.sssup.it>,
	Tommaso Cucinotta <t.cucinotta@...up.it>,
	Juri Lelli <juri.lelli@...il.com>,
	Nicola Manica <nicola.manica@...il.com>,
	Luca Abeni <luca.abeni@...tn.it>
Subject: Re: [RFC][PATCH 0/11] sched: SCHED_DEADLINE v2

Overall very nice code, awesome!

On Sun, 2010-02-28 at 20:06 +0100, Raistlin wrote:
>  - migration of tasks throughout push and pull (as in -rt), to make it
>    possible to deploy global-EDF scheduling. Patches are ready, they're
>    just being tested and adapted to this last version;

Please post a version that includes this :-)

>  - refinements in deadline inheritance, especially regarding the
>    possibility of retaining bandwidth isolation among non-interacting
>    tasks. This is being studied from both theoretical and practical
>    points of view, and hopefully we can have some demonstrative code
>    soon. 

Right, I hope that with changing the PI code to use RB trees this will
become much less of a kludge than fudging the ->prio field.

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