文章基本信息

标题：On-Line Dynamic Voltage Scaling for EDZL Scheduling on Symmetric Multiprocessor Real-Time Systems
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作者：Xuefeng Piao ; Moonju Park
期刊名称：International Journal of Multimedia and Ubiquitous Engineering
印刷版ISSN：1975-0080
出版年度：2015
卷号：10
期号：7
页码：171-182
DOI：10.14257/ijmue.2015.10.7.18
出版社：SERSC
摘要：EDZL (Earliest Deadline Zero Laxity) scheduling is known to be at least as EDF (Earliest Deadline First) in task scheduling on symmetric multiprocessor real-time systems; however, there are few works on energy conversation on the EDZL. This paper proposes an on-line Dynamic Voltage Scaling (DVS) algorithm of the global EDZL to reduce energy consumption of real-time tasks. The proposed algorithm dynamically adjusts processor speed at each scheduling point with re-assigning deadlines of active jobs that reduces power consumption of processors while making all real-time tasks schedulable by EDZL. Extensive simulations show that the proposed algorithm reduces power consumption more than the previous algorithm for EDZL.
关键词：Real-time scheduling; Multiprocessor; Dynamic voltage scaling; EDZL