Abstract

This paper explores the ability of the currentcy model to capture more complex interactions and to express more mature energy goals than previously considered. We carry out this exploration in ECOSystem, an ``energy-centric'' Linux-based operating system. We extend ECOSystem to address four new goals: 1) reducing residual battery capacity at the end of the targeted battery lifetime when it is no longer required (e.g., recharging is available), 2) dynamic tracking of the energy needs of competing applications for more effective energy sharing, 3) reducing response time variation caused by limited energy availability, and 4) energy efficient disk management. Our results show that the currentcy model can express complex energy-related goals and behaviors, leading to more effective, unified management policies than those that develop from per-device approaches.

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