Presentation 2012/2/24
A Distribution Method of the Slack Time for Reducing the Enegy Consumption of Embedded Systems
RYOHEI MIWA, HIDEKI TAKASE, GANG ZENG, HIROAKI TAKADA,
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Abstract(in English) In order to improve the efficiency of DVFS, it is important to properly distribute the slack time among tasks which is estimated by analyzing the task scheduling. In this paper, we proposed a method for slack time distribution called LFST (Leveling Frequency with Slack Time) to reduce the energy consumption of embedded real-time systems. The method uses two kinds of frequencies. One is the lowest frequency for guaranteeing deadline, and the other is a leveled frequency for analyzed tasks. Then, it selects the higher one from them and distributes it to the dispatched task so that energy can be reduced while guaranteeing the deadline restriction. The effectiveness of the LFST has been validated via experiments, and the results showed that maximal 64 % energy can be reduced comparing with fixed distribution rate of slack time.
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Paper # Vol.2012-SLDM-155 No.13,Vol.2012-EMB-24 No.13
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Conference Date 2012/2/24(1days)
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Language JPN
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Title (in English) A Distribution Method of the Slack Time for Reducing the Enegy Consumption of Embedded Systems
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1st Author's Name RYOHEI MIWA
1st Author's Affiliation Nagoya University()
2nd Author's Name HIDEKI TAKASE
2nd Author's Affiliation Nagoya University:apan Society for the Promotion of Science
3rd Author's Name GANG ZENG
3rd Author's Affiliation Nagoya University
4th Author's Name HIROAKI TAKADA
4th Author's Affiliation Nagoya University
Date 2012/2/24
Paper # Vol.2012-SLDM-155 No.13,Vol.2012-EMB-24 No.13
Volume (vol) vol.111
Number (no) 462
Page pp.pp.-
#Pages 6
Date of Issue