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

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Date:	Mon, 16 Apr 2007 08:45:40 -0700
From:	William Lee Irwin III <wli@...omorphy.com>
To:	Matt Mackall <mpm@...enic.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Con Kolivas <kernel@...ivas.org>,
	Peter Williams <pwil3058@...pond.net.au>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.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 Sun, Apr 15, 2007 at 04:31:54PM -0500, Matt Mackall wrote:
> That's irrelevant. Plugsched was an attempt to get alternative
> schedulers exposure in mainline. I know, because I remember
> encouraging Bill to pursue it. Not only did you veto plugsched (which
> may have been a perfectly reasonable thing to do), but you also vetoed
> the whole concept of multiple schedulers in the tree too. "We don't
> want to balkanize the scheduling landscape".
> And that latter part is what I'm claiming has set us back for years.
> It's not a technical argument but a strategic one. And it's just not a
> good strategy.
[... excellent post trimmed...]

These are some rather powerful arguments. I think I'll actually start
looking at plugsched again.


-- wli
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