NDLI: Congestion prices as feedback signals: an approach to QoS management

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Congestion prices as feedback signals: an approach to QoS management

Content Provider	ACM Digital Library
Author	Neugebauer, Rolf McAuley, Derek
Abstract	Recently there has been a renewed interest in the application of economic models to the management of computational resources. Most of this interest is focused on pricing models for the Internet; in particular, on congestion or shadow prices, that address the phenomenon of what economists call external costs --- users are exposed to the costs they impose on other users when causing congestion of a resource.This paper describes how congestion prices can be applied to resource management in operating systems. Shadow prices are interpreted as feedback signals to applications which can adjust their resource requirements according to an application-specific strategy. This leads to a decentralised approach of resource management where applications are enabled and encouraged to perform resource and quality tradeoffs themselves. We have implemented a simulation environment and a number of strategies to evaluate the usefulness of congestion prices as a feedback signal and demonstrate that this approach can offer different service levels to different tasks. We also discuss how the simulation results can be applied in a real operating system and how this work can be extended to form a generic resource management framework.
Starting Page	91
Ending Page	96
Page Count	6
File Format	PDF
DOI	10.1145/566726.566748
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2000-09-17
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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