Re: About group scheduling for SCHED_DEADLINE

From	Peter Zijlstra <peterz@infradead.org>
Newsgroups	linux.kernel
Subject	Re: About group scheduling for SCHED_DEADLINE
Date	2016-10-17 13:00 +0200
Message-ID	<stdOa-2ot-3@gated-at.bofh.it> (permalink)
References	<sqsgF-8mw-5@gated-at.bofh.it> <sqFQB-8tb-21@gated-at.bofh.it> <ssZrP-1Aw-1@gated-at.bofh.it>
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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.

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Re: About group scheduling for SCHED_DEADLINE Luca Abeni <luca.abeni@unitn.it> - 2016-10-16 21:40 +0200
  Re: About group scheduling for SCHED_DEADLINE Peter Zijlstra <peterz@infradead.org> - 2016-10-17 13:00 +0200

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