License: Creative Commons Attribution 4.0 International license (CC BY 4.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.ECRTS.2021.9
URN: urn:nbn:de:0030-drops-139404
URL: https://drops.dagstuhl.de/opus/volltexte/2021/13940/
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Baruah, Sanjoy ; Ekberg, Pontus

Graceful Degradation in Semi-Clairvoyant Scheduling

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LIPIcs-ECRTS-2021-9.pdf (0.7 MB)


Abstract

In the Vestal model of mixed-criticality systems, jobs are characterized by multiple different estimates of their actual, but unknown, worst-case execution time (WCET) parameters. Some recent research has focused upon a semi-clairvoyant model for mixed-criticality systems in which it is assumed that each job reveals upon arrival which of its WCET parameters it will respect. We study the problem of scheduling such semi-clairvoyant systems to ensure graceful degradation of service to less critical jobs in the event that the systems exhibit high-criticality behavior. We propose multiple different interpretations of graceful degradation in such systems, and derive efficient scheduling algorithms that are capable of ensuring graceful degradation under these different interpretations.

BibTeX - Entry

@InProceedings{baruah_et_al:LIPIcs.ECRTS.2021.9,
  author =	{Baruah, Sanjoy and Ekberg, Pontus},
  title =	{{Graceful Degradation in Semi-Clairvoyant Scheduling}},
  booktitle =	{33rd Euromicro Conference on Real-Time Systems (ECRTS 2021)},
  pages =	{9:1--9:21},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-192-4},
  ISSN =	{1868-8969},
  year =	{2021},
  volume =	{196},
  editor =	{Brandenburg, Bj\"{o}rn B.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2021/13940},
  URN =		{urn:nbn:de:0030-drops-139404},
  doi =		{10.4230/LIPIcs.ECRTS.2021.9},
  annote =	{Keywords: Mixed criticality, semi-clairvoyance, graceful degradation}
}

Keywords: Mixed criticality, semi-clairvoyance, graceful degradation
Collection: 33rd Euromicro Conference on Real-Time Systems (ECRTS 2021)
Issue Date: 2021
Date of publication: 30.06.2021


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