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Dynamic Voltage Scaling for Real-Time Multi-task Scheduling Using Buffers

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Authors
Im, Chaeseok; Ha, Soonhoi
Issue Date
2004-07
Publisher
Association for Computing Machinery (ACM)
Citation
ACM SIGPLAN Notices, Vol. 39, No. 7, pp. 88-94, 2004
Keywords
Real-Time SystemsSchedulingDynamic Voltage Scaling
Abstract
This paper proposes energy efficient real-time multi-task
scheduling (EDF and RM) algorithms by using buffers. The
buffering technique overcomes a drawback of previous approaches
by utilizing the slack time of a system fully. It increases the CPU
utilization and averages the workload of a system, so it enhances
the effectiveness of the DVS technique. We target multimedia
applications where a slight buffering delay is tolerable within a
latency constraint. We modify the state transition and queue
handling mechanism of multi-task scheduling in the kernel. In
experiments, our algorithms achieve up to 44% of energy
consumption saving for EDF scheduling and 49% for RM
scheduling with realistic task set configurations and reasonable
machine specifications.
Language
English
URI
http://hdl.handle.net/10371/7998
DOI
https://doi.org/10.1145/997163.997176
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Computer Science and Engineering (컴퓨터공학부)Journal Papers (저널논문_컴퓨터공학부)
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