linux-kernel - Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

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Message-ID: <Pine.LNX.4.64.0704151419140.11750@frodo.shire>
Date:	Sun, 15 Apr 2007 14:29:53 +0200 (CEST)
From:	Esben Nielsen <nielsen.esben@...glemail.com>
To:	Ingo Molnar <mingo@...e.hu>
cc:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Con Kolivas <kernel@...ivas.org>,
	Nick Piggin <npiggin@...e.de>, Mike Galbraith <efault@....de>,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [Announce] [patch] Modular Scheduler Core and Completely Fair
 Scheduler [CFS]

On Fri, 13 Apr 2007, Ingo Molnar wrote:

> [announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]
>
> i'm pleased to announce the first release of the "Modular Scheduler Core
> and Completely Fair Scheduler [CFS]" patchset:
>
>   http://redhat.com/~mingo/cfs-scheduler/sched-modular+cfs.patch
>
> This project is a complete rewrite of the Linux task scheduler. My goal
> is to address various feature requests and to fix deficiencies in the
> vanilla scheduler that were suggested/found in the past few years, both
> for desktop scheduling and for server scheduling workloads.
>
> [...]

I took a brief look at it. Have you tested priority inheritance?
As far as  I can see rt_mutex_setprio doesn't have much effect on 
SCHED_FAIR/SCHED_BATCH. I am looking for a place where such a task change 
scheduler class when boosted in rt_mutex_setprio().

Esben

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