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From: Peter Zijlstra <peterz@infradead.org>
To: Luca Abeni <luca.abeni@unitn.it>
Cc: linux-kernel@vger.kernel.org,
	Tommaso Cucinotta <tommaso.cucinotta@sssup.it>,
	Juri Lelli <juri.lelli@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andrea Parri <parri.andrea@gmail.com>,
	giuseppe lipari <giuseppe.lipari@lsv.ens-cachan.fr>,
	Claudio Scordino <claudio@evidence.eu.com>
Subject: Re: About group scheduling for SCHED_DEADLINE
Date: Mon, 17 Oct 2016 12:52:50 +0200	[thread overview]
Message-ID: <20161017105250.GP3117@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20161016213420.64b772da@utopia>

On Sun, Oct 16, 2016 at 09:34:20PM +0200, Luca Abeni wrote:
> Hi Peter,
> 
> first of all, sorry for the delay in my answer

Not a problem, we're all busy. As it happens I had this thing in Berlin
which delayed me reading email in any case ;-)


> > However, I think there's a third alternative. I have memories of a
> > paper from UNC (I'd have to dig through the site to see if I can
> > still find it) where they argue that for a hierarchical (G-)FIFO you
> > should use minimal concurrency, that is run the minimal number of
> > (v)cpu servers.

> Ok, I need to find and read that paper

I had a real quick look and it could be this one, but memories are
vague...

  https://cs.unc.edu/~anderson/papers/ecrts08c.pdf

In particular 3.P.

      reply	other threads:[~2016-10-17 10:53 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-09 19:39 About group scheduling for SCHED_DEADLINE Luca Abeni
2016-10-10 10:15 ` Peter Zijlstra
2016-10-10 11:08   ` Peter Zijlstra
2016-10-16 19:40     ` Luca Abeni
2016-10-17  6:38       ` luca abeni
2016-10-17  8:25         ` Peter Zijlstra
2016-10-18  9:43           ` Juri Lelli
2016-10-10 12:04   ` Peter Zijlstra
2016-10-16 19:34   ` Luca Abeni
2016-10-17 10:52     ` Peter Zijlstra [this message]

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