Congestion prices as feedback signals: an approach to QoS management

13 years 9 months ago

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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 th...

Rolf Neugebauer, Derek McAuley

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