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This work presents a novel slack management technique, the Service Rate Proportionate(SRP) Slack Distribution, for real-time distributed embedded systems to reduce energy consumption. The proposed SRP based Slack Distribution Technique has been considered with EDF and Rate Based scheduling schemes that are most commonly used with embedded systems. A fault tolerance mechanism has also been incorporated into the proposed technique inorder to utilize the available dynamic slack to maintain checkpoints and provide for rollbacks on faults. Results show that in comparion to contemporary techniques, the proposed SRP Slack Distribution Technique provides for about 29% more performance/overhead improvement benefits when validated with real world and random benchmarks.
Real-Time, Slack, Periodic Service Rate, Energy Efficient, fault-tolerance
Subrata Acharya, Rabi Mahapatra, "A Dynamic Slack Management Technique for Real-Time Distributed Embedded Systems", IEEE Transactions on Computers, vol. 57, no. , pp. 215-230, February 2008, doi:10.1109/TC.2007.70789
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