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An energy-efficient time-triggered scheduling algorithm for mixed-criticality systems

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Abstract

Real-time safety-critical systems are getting more complicated due to the introduction of mixed-criticality systems. The increasing use of mixed-criticality systems has motivated the real-time systems research community to investigate various non-functional aspects of these systems. Energy consumption minimization is one such aspect which is just beginning to be explored. In this paper, we propose a time-triggered dynamic voltage and frequency scaling (DVFS) algorithm for uniprocessor mixed-criticality systems. We show that our algorithm outperforms the predominant existing algorithm which uses DVFS for mixed-criticality systems with respect to minimization of energy consumption. In addition, ours is the first energy-efficient time-triggered algorithm for mixed-criticality systems. We prove an optimality result for the proposed algorithm with respect to energy consumption. Then we extend our algorithm for tasks with dependency constraints.

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Acknowledgements

We thank Sanjoy Baruah and Arnab Sarkar for helpful comments and feedback on earlier versions of this draft.

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  1. Department of CSE, IIT Guwahati, Guwahati, India

    Lalatendu Behera & Purandar Bhaduri

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  1. Lalatendu Behera
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  2. Purandar Bhaduri
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Correspondence to Lalatendu Behera.

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Behera, L., Bhaduri, P. An energy-efficient time-triggered scheduling algorithm for mixed-criticality systems. Des Autom Embed Syst 24, 79–109 (2020). https://doi.org/10.1007/s10617-019-09232-3

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