Energy-aware real-time task synchronization in multi-core embedded systems

Authors:
Lin-Fong Fan;Ting-Hao Tsai;Ya-Shu Chen;Shian-Shing Shyu
Affiliations:
National Taiwan University of Science and Technology, Taiwan;National Taiwan University of Science and Technology, Taiwan;National Taiwan University of Science and Technology, Taiwan;Institute of Nuclear Energy Research, Taiwan
Venue:
Proceedings of the 28th Annual ACM Symposium on Applied Computing
Year:
2013

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Abstract

The problem of energy-aware real-time task synchronization in multi-core systems is complicated by difficulties resulting from the trade-off between run-time blocking management and energy conservation. This paper proposes the Triple Speed concept to render energy-aware to existing multi-core real-time synchronization protocols and better manage energy consumption from run-time blocking effects. Algorithms are presented to assign required core frequencies to minimize energy consumption and meet timing constraints by accounting for schedulability tests. A series of extensive simulations are performed to evaluate the proposed methodology.