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Energy-constrained scheduling for weakly hard real-time systems using standby-sparing
Howard University, the Department of Electrical Engineering and Computer Science, DC, Washington, United States.
Howard University, the Department of Electrical Engineering and Computer Science, DC, Washington, United States.
Howard University, 2400 Sixth Street NW, DC, Washington, United States.
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.ORCID iD: 0000-0003-4228-2774
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2024 (English)In: ACM Transactions on Design Automation of Electronic Systems, ISSN 1084-4309, E-ISSN 1557-7309, Vol. 29, no 2, article id 29Article in journal (Refereed) Published
Abstract [en]

For real-time embedded systems, QoS (Quality of Service), fault tolerance, and energy budget constraint are among the primary design concerns. In this research, we investigate the problem of energy constrained standby-sparing for both periodic and aperiodic tasks in a weakly hard real-time environment. The standby-sparing systems adopt a primary processor and a spare processor to provide fault tolerance for both permanent and transient faults. For such kind of systems, we firstly propose several novel standby-sparing schemes for the periodic tasks which can ensure the system feasibility under tighter energy budget constraint than the traditional ones. Then based on them integrated approachs for both periodic and aperiodic tasks are proposed to minimize the aperiodic response time whilst achieving better energy and QoS performance under the given energy budget constraint. The evaluation results demonstrated that the proposed techniques significantly outperformed the existing state-of-the-art approaches in terms of feasibility and system performance while ensuring QoS and fault tolerance under the given energy budget constraint.

Place, publisher, year, edition, pages
Association for Computing Machinery (ACM), 2024. Vol. 29, no 2, article id 29
Keywords [en]
Energy constraint, fault tolerance, quality of service, real-time scheduling, standby-sparing
National Category
Embedded Systems Computer Systems
Identifiers
URN: urn:nbn:se:umu:diva-223744DOI: 10.1145/3631587ISI: 001193665600006Scopus ID: 2-s2.0-85190598772OAI: oai:DiVA.org:umu-223744DiVA, id: diva2:1856133
Funder
The Kempe FoundationsAvailable from: 2024-05-06 Created: 2024-05-06 Last updated: 2024-05-06Bibliographically approved

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Gu, Zonghua

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