Impact of non-schedulability on embedded system performance

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Abstract

The uncertainty factors of real-time tasks during runtime affect the control performance owing to system resources and processor utilization restriction. The impact of non-schedulability on embedded system performance is deeply researched in this paper. First, the time characteristics such as sampling jitter, input-output jitter and non-schedulability are discussed. Then the schedulability analyses of the rate monotonic (RM) algorithm and the earliest deadline first (EDF) algorithm are introduced. Finally, using RM algorithm, an example, DC servo motor controller, is use to illuminate the impact of non-schedulable jobs on system performance. The experiment results indicate that it is extremely important to reduce, even eliminate the non-schedulable jobs for improving embedded system performance. © 2009 Springer Berlin Heidelberg.

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Wan, J., Li, D., Yan, H., & Zhang, P. (2009). Impact of non-schedulability on embedded system performance. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5551 LNCS, pp. 1202–1209). https://doi.org/10.1007/978-3-642-01507-6_135

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