NDLI: An Efficient Periodic Resource Supply Model for Workloads with Transient Overloads

Content Provider	IEEE Xplore Digital Library
Author	Azim, A. Sundaram, S. Fischmeister, S.
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada (Azim, A.; Sundaram, S.; Fischmeister, S.)
Abstract	Real-time applications have deadline constraints. The system should provision sufficient resources for the application to meet the deadlines, and use supply and demand bound functions to analyze the schedulability of workloads. The concept of the demand bound function describes the upper bound on the resources required by the application, while the supply-bound function specifies the lower bound on the resources supplied to the tasks. If the system provides fewer resources than required, the application will experience an overload. Most work concentrates on designing systems that cannot experience short periods of overloads. This work explores resource provisioning for control applications that can tolerate overloads. It introduces analysis techniques for supply and demand bound functions that specifically consider overloads and delays in a periodic resource model. With this extended model, the work addresses three problems: (1) determine the worst-case delay for a given resource demand and supply under a periodic resource model, (2) find a periodic resource supply for a given workload and worst-case tolerable delay, and (3) for a control system with a given robustness criterion, identify a periodic resource supply with a worst-case delay.
Starting Page	249
Ending Page	258
File Size	337380
Page Count	10
File Format	PDF
ISBN	9780769550541
ISSN	10683070
DOI	10.1109/ECRTS.2013.34
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-09
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delays Real-time systems Control systems Equations Transient analysis Supply and demand
Content Type	Text
Resource Type	Article

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