期刊
JOURNAL OF SYSTEMS AND SOFTWARE
卷 86, 期 10, 页码 2611-2619出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jss.2013.04.075
关键词
Sporadic task; Dynamic voltage scaling; Real-time system
资金
- nuclear high base, the major projects of the National Science and Technology [2012ZX01029001-002]
In this paper, we consider the canonical sporadic task model with the system-wide energy management problem. Our solution uses a generalized power model, in which the static power and the dynamic power are considered. We present a static solution to schedule the sporadic task set, assuming worst-case execution time for each sporadic tasks release, and propose a dynamic solution to reclaim the slacks left by the earlier completion of tasks than their worst-case estimations. The experimental results show that the proposed static algorithm can reduce the energy consumption by 20.63%-89.70% over the EDF* algorithm and the dynamic algorithm consumes 2.06%-24.89% less energy than that of the existing DVS algorithm. (C) 2013 Elsevier Inc. All rights reserved.
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