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EDF-VD Scheduling of Flexible Mixed-Criticality System With Multiple-Shot Transitions
Northeastern Univ, Smart Syst Lab, Sch Comp Sci & Engn, Shenyang 110819, Liaoning, Peoples R China;Hong Kong Polytech Univ, Dept Comp, Hong Kong, Hong Kong, Peoples R China.
Hong Kong Polytech Univ, Dept Comp, Hong Kong, Hong Kong, Peoples R China.
Beijing Univ Chem Technol, Coll Informat Sci & Technol, Beijing 100029, Peoples R China.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Datorteknik. School of Computer Science and Engineering, Northeastern University, Shenyang, China.
2018 (engelsk)Inngår i: IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, ISSN 0278-0070, E-ISSN 1937-4151, Vol. 37, nr 11, s. 2393-2403Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The existing mixed-criticality (MC) real-time task models assume that once any high-criticality task overruns, all high-criticality jobs execute up to their most pessimistic WCET estimations simultaneously in a one-shot manner. This is very pessimistic in the sense of unnecessary resource overbooking. In this paper, we propose a more generalized mixed-critical real-time task model, called flexible MC model with multiple-shot transitions (FMC-MST), to address this problem. In FMC-MST, high-criticality tasks can transit multiple intermediate levels to handle less pessimistic overruns independently and to nonuni-formly scale the deadline on each level. We develop a run-time schedulability analysis for FMC-MST under EDF-VD scheduling, in which a better tradeoff between the penalties of low-criticality tasks and the overruns of high-criticality tasks is achieved to improve the service quality of low-criticality tasks. We also develop a resource optimization technique to find resource-efficient level-insertion configurations for FMC-MST task systems under MC timing constraints. Experiments demonstrate the effectiveness of FMC-MST compared with the state-of-the-art techniques.

sted, utgiver, år, opplag, sider
2018. Vol. 37, nr 11, s. 2393-2403
Emneord [en]
EDF-VD scheduling, flexible mixed-criticality (FMC) system, multiple-shot transitions
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-370014DOI: 10.1109/TCAD.2018.2857359ISI: 000447854500020OAI: oai:DiVA.org:uu-370014DiVA, id: diva2:1275693
Konferanse
Embedded Syst Week (ESWEEK) / Int Conf on Compilers, Architecture, and Synthesis for Embedded Syst (CASES) / Int Conf on Hardware/Software Codesign and Syst Synthesis (CODES+ISSS) / ACM SIGBED Int Conf on Embedded Software (EMSOFT), MAR 27-APR 03, 2018, Torino, ITALY
Tilgjengelig fra: 2019-01-07 Laget: 2019-01-07 Sist oppdatert: 2019-01-07bibliografisk kontrollert

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