NDLI: A user-customizable energy-adaptive combined static/dynamic scheduler for mobile applications

Content Provider	IEEE Xplore Digital Library
Author	Ma, T.C.-L. Shin, K.G.
Copyright Year	2000
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA (Ma, T.C.-L.)
Abstract	In mobile applications, the energy consumed by operating system (OS) and application tasks primarily comes from a limited DC battery source, which imposes an upper bound to the amount of time available for execution of tasks. To achieve the best energy-aware quality of service (EQoS), it is important to prioritize the scheduling of critical tasks over non-critical tasks to improve overall performance while extending the battery life. Using the CSD (Combined Static/Dynamic) scheduler in the EMERALDS operating system as a basis, we developed EA-CSD (Energy-Adaptive CSD) with an energy-aware scheduling algorithm that executes tasks to achieve the effective use of limited energy by favoring low-energy and critical tasks. Our simulation of the EA-CSD shows that battery life can be extended up to about 100% with varying degrees of performance degradation of up to about 40%, and the actual values of both are fully customizable by the user through parametric adjustment.
Starting Page	227
Ending Page	236
File Size	975453
Page Count	10
File Format	PDF
ISBN	0769509002
ISSN	10528725
DOI	10.1109/REAL.2000.896012
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-11-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dynamic scheduling Batteries Application software Operating systems Scheduling algorithm Processor scheduling Laboratories Mobile computing Upper bound Degradation
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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