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Proportionate fair based multicore scheduling for fault tolerant multicore real-time systems

  • In this paper we present a scheduling approach for safety critical, fault tolerant, multicore real-time embedded systems. For this kind of systems, not only the correctness of a computed result but also the strict adherence to timing requirements of computation is essential to avoid any kind of damage. To react to unpredictable, arbitrary hardware faults suitable error detection mechanisms have to be applied. The caused error itself and the detection and correction have great impact on the system's timing behavior. To still keep the real-time requirements, the used scheduling algorithm has to ensure maximum flexibility to disturbances of the timing. The group of Proportionate Fair (Pfairness) multicore scheduling algorithms has been proven to create an optimal schedule in polynomial time. The contribution of this paper is a Pfair-based algorithm that uses tight coupling between the error detection mechanisms and the scheduler of the real-time operating system to establish a loop-back connection.

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Metadaten
Author:Stefan Krämer, Jürgen MottokORCiDGND, Stanislav Racek
DOI:https://doi.org/10.1109/EITech.2015.7162952
Parent Title (English):International Conference on Electrical and Information Technologies (ICEIT), 25-27 March 2015, Marakesch, Morocco
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2015
Release Date:2021/03/11
Tag:Multicore processing; Real-time systems; Safety; Schedules; Scheduling algorithms; Time factors
First Page:88
Last Page:93
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Laboratory for Safe and Secure Systems (LAS3)
research focus:Digitalisierung