linux-kernel - Re: [RFC patch 1/2] sched: dynamically adapt granularity with nr

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Message-Id: <1284381138.7410.4.camel@marge.simson.net>
Date:	Mon, 13 Sep 2010 14:32:18 +0200
From:	Mike Galbraith <efault@....de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [RFC patch 1/2] sched: dynamically adapt granularity with
 nr_running

On Mon, 2010-09-13 at 13:43 +0200, Peter Zijlstra wrote:
> On Mon, 2010-09-13 at 12:45 +0200, Peter Zijlstra wrote:
> > What we want is real deadlines, the patch provides the infrastructure,
> > let me frob something for that. 
> 
> Here, real deadline, but totally untested (except for compile).

You're fast.  Now to see if I can find the early forever Loop :)

> Please read through the logic. The idea was to do as we always do,
> except keep a deadline on enqueue for now + __sched_period, once we find
> that a deadline expired, we force run that task.

Yeah, I'll go read/piddle.

	-Mike

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