Energy-Efficient Real-Time Scheduling of Multimedia Tasks on Multiple-Processors
Date Issued
2009
Date
2009
Author(s)
Wei, Yi-Hung
Abstract
With the strong demand of multimedia applications, powerful multi-core processors are proposed, and it consumes huge energy. Thus, an effective method is needed for resolving this challenge issue. As motivated by the needs, this paper targets energy-efficient real-time multimedia task scheduling of such platforms, where the processor is supported with DVFS and with or without DPM mechanism. If the system is not equipped with DPM mechanism, an approximation algorithm is developed to minimize the energy consumption. For system with DPM consideration, an optimal solution is proposed for determining the core configuration of known tasks in buffer. An experiment is conducted in real hardware platform, and extensive simulation are performed to evaluate the performance of our algorithms. Experimental results show that the proposed algorithms can achieve significant energy saving.
Subjects
multiprocessor scheduling
energy-e±cient scheduling
multimedia tasks scheduling
real-time scheduling
SDGs
Type
thesis
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