https://scholars.lib.ntu.edu.tw/handle/123456789/331808
標題: | System-level energy-efficiency for real-time tasks | 作者: | Yang, C.-Y. Chen, J.-J. Hung, C.-M. TEI-WEI KUO |
公開日期: | 2007 | 起(迄)頁: | 266-274 | 來源出版物: | 10th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing | 摘要: | Dynamic voltage scaling (DVS) has been adopted in many computing systems to reduce the energy consumption of the processor by slowing down the processor speed. However, for system devices without DVS capability, the longer a task executes, the more energy the task consumes in the required system devices. This paper explores energy-efficient scheduling for periodic hard real-time tasks in a system consisted of a DVS processor and multiple non-DVS system devices. We propose an algorithm for static scheduling which minimizes the system energy consumption of a given set of real-time tasks, provided that each task executes in its worst case. For systems in which some tasks might complete earlier than its estimated worst-case execution time, we develop on-line algorithms to reclaim the slack time to reduce the energy consumption. Compared to existing algorithms, our proposed algorithm can reduce the energy consumption both in the CPU and system devices. © 2007 IEEE. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-36349030152&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/331808 |
DOI: | 10.1109/ISORC.2007.55 | SDG/關鍵字: | Algorithms; Embedded systems; Energy utilization; Program processors; Real time systems; Scaling laws; Dynamic voltage scaling (DVS); Energy-efficient scheduling; Real-time process scheduling; Worst-case execution; Energy efficiency |
顯示於: | 資訊工程學系 |
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