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Towards RTOS support for mixed time-triggered and event-triggered task sets
Technische Universiteit Eindhoven.
Technische Universiteit Eindhoven.ORCID-id: 0000-0001-6234-5117
Technische Universiteit Eindhoven.
Mälardalens högskola, Akademin för innovation, design och teknik. (IS)ORCID-id: 0000-0002-5274-7339
Vise andre og tillknytning
2012 (engelsk)Inngår i: IEEE Symposium on Emerging Technologies and Factory Automation, ETFA, 2012, 2012, s. 1-4Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Many embedded systems have complex timing constraints and, at the same time, have flexibility requirements which prohibit offline planning of the entire system. To support a mixture of time-triggered and event-triggered tasks, some industrial systems deploy a real-time operating system (RTOS) with a table-driven dispatcher complemented with a preemptive scheduler to allocate free time slots to event-driven tasks. Rather than allocating dedicated time-slots to time-triggered tasks, we propose to dynamically re-allocate time-slots of time-triggered tasks within a pre-computed time range to maximize the available processing capacity for event-triggered tasks. Although the concept - called slotshifting - is not new, we are unaware of a commercial RTOS with such support. After identifying the mechanisms for an RTOS implementation of slotshifting, we discuss the run-time overheads for admitting aperiodic requests into the system1.

sted, utgiver, år, opplag, sider
2012. s. 1-4
HSV kategori
Identifikatorer
URN: urn:nbn:se:mdh:diva-17303DOI: 10.1109/ETFA.2012.6489733ISI: 000320333400202Scopus ID: 2-s2.0-84876361269ISBN: 9781467347372 (tryckt)OAI: oai:DiVA.org:mdh-17303DiVA, id: diva2:579634
Konferanse
17th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2012), September 17-21, 2012, Krakow, Poland
Tilgjengelig fra: 2012-12-20 Laget: 2012-12-20 Sist oppdatert: 2018-08-08bibliografisk kontrollert

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