Howto implement a periodic real-time task?

Sergio Ruocco ruocco at
Tue Jul 21 14:43:39 CEST 2009

Andre Puschmann wrote:
> Any comment/suggestions/ideas about that? Any other experience with
> periodic real-time tasks on L4?

Hi Andre,

maybe they do not contain a plug-in solution to your problems, but I
wrote a couple of papers on real-time scheduling on top of L4
microkernels which could be useful as a starting point:

Please note that the journal paper discusses real-time scheduling on
general-purpouse L4 microkernels, specifically L4 Pistachio v0.4, and a
*now*-*obsolete* version of L4-embedded. The recent OKL4 v3.0 addressed
all the real-time scheduling issues discussed in the paper.

Comments and criticism on the papers are welcome!



Dr. Sergio Ruocco   Research Fellow
mailto:ruocco at / sergio.ruocco at      NOMADIS Lab
phone: +39-02-6448-7914               Mobile, embedded real-time systems
skype: 'sergioruocco'  Dip. di Informatica, Sistemistica e COmunicazione
Building U14, room 1003  Università degli Studi di Milano-Bicocca, Italy

W La ricerca

Your manuscript is both good and original; but the part that is good is
not original, and the part that is original is not good.
Samuel Johnson

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