Title: Minimising makespan in embedded real-time systems with failure rate requirements

Authors: Salim Kalla; Sonia Sabrina Bendib; Hocine Riadh; Hamoudi Kalla

Addresses: Department of Computer Science, LaSTIC Laboratory, University of Batna 2, Batna, Algeria ' Department of Computer Science, LaSTIC Laboratory, University of Batna 2, Batna, Algeria ' Department of Computer Science, LaSTIC Laboratory, University of Batna 2, Batna, Algeria ' Department of Computer Science, LaSTIC Laboratory, University of Batna 2, Batna, Algeria

Abstract: Scheduling of real-time tasks in embedded real-time systems with quantitative reliability requirements, such as failure rate, is one of the important issues in system design. In this paper, we present a real-time scheduling heuristic that minimise makespan and satisfy reliability requirements for systems that are subject to processor and communication faults. The heuristic is based on a cost function to minimise makespan and on task redundancy to meet reliability requirements. Our approach is dedicated to heterogeneous architectures with multiple processors linked by several shared buses. It is based on active redundancy and data fragmentation strategies, which allow fast error detection and error handling. Thanks to the above-mentioned strategies, we are able to show with simulation results that our approach can generally reduce the run-time overhead.

Keywords: task scheduling; embedded systems; real-time systems; makespan; failure rate; reliability; task redundancy.

DOI: 10.1504/IJISE.2020.108546

International Journal of Industrial and Systems Engineering, 2020 Vol.35 No.4, pp.451 - 462

Received: 06 Apr 2018
Accepted: 20 Dec 2018
Published online: 17 Jul 2020 *

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