Task Mapping and Priority Assignment for Soft Real-Time Applications under Deadline Miss Ratio Constraints
ACM Trans. on Embedded Computing Systems, Volume 7, Number 2, pp. 1-35, February 2008.
Both analysis and design optimisation of real-time systems has predominantly concentrated on considering hard real-time constraints. For a large class of applications, however, this is both unrealistic and leads to unnecessarily expensive implementations. This paper addresses the prob- lem of task priority assignment and task mapping in the context of multiprocessor applications with stochastic execution times and in the presence of constraints on the percentage of missed deadlines. We propose a design space exploration strategy together with a fast method for system performance analysis. Experiments emphasise the efficiency of the proposed analysis method and optimisation heuristic in generating high quality implementations of soft real-time systems with stochastic task execution times and constraints on deadline miss ratios.
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[MEP08] Sorin Manolache, Petru Eles, Zebo Peng, "Task Mapping and Priority Assignment for Soft Real-Time Applications under Deadline Miss Ratio Constraints", ACM Trans. on Embedded Computing Systems, Volume 7, Number 2, pp. 1-35, February 2008.