Abstract
In safety-critical systems a smooth degradation of services is a way to deal with resource shortages. Criticality arithmetic is a technique to implement services of higher criticality by several tasks of lower criticality. In this paper, we present LBP-CA, a mixed-criticality scheduling protocol with smooth degradation based on criticality arithmetic. In the experiments we show that LPB-CA can schedule more tasks than related scheduling protocols (BP and LBP) in case of resource shortage, minimising the negative effect on low-criticality services. This is achieved by considering information about criticality arithmetic of services.
Original language | English |
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Title of host publication | Proceedings of Abstracts, School of Physics, Engineering and Computer Science Research Conference 2022 |
Place of Publication | Hatfield, UK |
Publisher | University of Hertfordshire |
Pages | 58-60 |
Number of pages | 3 |
DOIs | |
Publication status | Published - 4 Nov 2022 |
Event | 2nd School of Physics, Engineering and Computer Science Research Conference - Online - hosted by the School of Physics, Engineering and Computer Science, Hatfield, United Kingdom Duration: 12 Apr 2022 → 12 Apr 2022 https://uhra.herts.ac.uk/handle/2299/25867 |
Conference
Conference | 2nd School of Physics, Engineering and Computer Science Research Conference |
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Abbreviated title | SPECS 2022 |
Country/Territory | United Kingdom |
City | Hatfield |
Period | 12/04/22 → 12/04/22 |
Internet address |
Keywords
- real-time systems;
- safety integrity level
- scheduling
- mixed-criticality