Messages in this thread | | | Subject | Re: [RFC][PATCH 18/22] sched: add reclaiming logic to -deadline tasks | From | Raistlin <> | Date | Mon, 15 Nov 2010 22:34:48 +0100 |
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On Mon, 2010-11-15 at 13:37 -0500, James H. Anderson wrote: > Sorry for the delayed response... I think I must have inadvertently > deleted this > NP. Hope it's not my fault, due to GPG and stuff... :-)
> If you're talking about our most recent "stochastic" paper, it is about > supporting > soft real-time task systems on a multiprocessor where resource > reservations are > used. > Actually, we were talking about the previous one, which (if I got it well) didn't include reservations, and that's why we were wondering how to integrate it in the scheduler (which _is_ reservation based).
Now that this one is out, going for it simply solves all our issues, also considering that it says something very similar to what we (Pisa guys :-D) are familiar with, since we investigated this stuff too sometime ago (actually, Luca did).
> However, such methods would be easy to incorporate. > I think it really should be... Actually, I'm under the impression that we don't even need variance/std-dev of the execution time to be part of the interface, do we?
> I gathered there was > some confusion about whether we were using resource reservations. Such > reservations are actually crucial for our analysis as they allow > independence to be assumed across tasks. > Yes, as I said, this was because we were looking at first paper. Now we got it, thanks a lot for clarifying! :-)
> I hope this helps. > A lot, thanks again.
Dario
-- <<This happens because I choose it to happen!>> (Raistlin Majere) ---------------------------------------------------------------------- Dario Faggioli, ReTiS Lab, Scuola Superiore Sant'Anna, Pisa (Italy)
http://blog.linux.it/raistlin / raistlin@ekiga.net / dario.faggioli@jabber.org [unhandled content-type:application/pgp-signature] | |