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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.
Mälardalen University, School of Innovation, Design and Engineering. (IS)ORCID iD: 0000-0002-5274-7339
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2012 (English)In: IEEE Symposium on Emerging Technologies and Factory Automation, ETFA, 2012, 2012, p. 1-4Conference paper, Published paper (Refereed)
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.

Place, publisher, year, edition, pages
2012. p. 1-4
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-17303DOI: 10.1109/ETFA.2012.6489733ISI: 000320333400202Scopus ID: 2-s2.0-84876361269ISBN: 9781467347372 (print)OAI: oai:DiVA.org:mdh-17303DiVA, id: diva2:579634
Conference
17th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA 2012), September 17-21, 2012, Krakow, Poland
Available from: 2012-12-20 Created: 2012-12-20 Last updated: 2018-08-08Bibliographically approved

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Bril, ReinderIsovic, Damir

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Bril, ReinderIsovic, DamirRamachandran, Gowri Sankar
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
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Output format
  • html
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  • asciidoc
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