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Hybrid Run-time Power Management Technique for Real-time Embedded System with Voltage Scalable Processor
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- Authors
- Issue Date
- 2001-08
- Publisher
- ACM
- Citation
- ACM SIGPLAN Notice Vol. 36, No. 8, pp. 11-19, 2001
- Keywords
- Run-time power management technique ; real-time embedded system ; DPM(Dynamic Power Management) ; DVS(Dynamic Voltage Scaling)
- Abstract
- This paper presents a new run-time power management technique
for real-time embedded systems which consist of a voltage
scalable processor and power controllable peripheral devices. We
have observed that there exist significant trade-offs in terms of
energy consumption between the Dynamic Power Management
(DPM) scheme and the Dynamic Voltage Scaling (DVS) scheme
over a wide range of system operating conditions. The proposed
technique fully exploits workload-variation slack time by
partitioning the task into several timeslots and shut down the
unneeded peripheral device on timeslot-by-timeslot basis.
Through extensive simulations, the novelty and the usefulness of
the proposed technique are demonstrated.
- Language
- English
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