Managing Energy as a First Class Operating System Resource

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Managing the energy consumption of computers requires cooperationbetween energy aware applications and operating systems. Thisresearch seeks to fully explore the energy management spacesurrounding the interaction of applications and the operating system.Applications should adjust their energy consumption when appropriate,but must be provided accurate information on their individual energyconsumption. The operating system must implement the mechanisms andpolicies to determine energy consumption and allocate it fairly as aglobal system resource.This research will first re-examine operating system structure with anemphasis on managing energy as a first class resource. Energymanagement cuts across all traditional system resources, with the CPU,disk, network, and memory all exhibiting unique energy consumptioncharacteristics. Next, the work will explore policies for allocatingenergy to competing tasks. The goal is to maintain fairness whileobserving user-specified priorities and soft real-time deadlines.The end product of this research will be a comprehensive framework forglobally managing energy in a diverse set of scenarios, ranging from asingle mobile computer, to wireless sensor networks that may haveaggregate goals across a large number of sensors, to hosting centersthat wish to provide maximum performance with minimum energyconsumption.