| ||||||||||||||||||||||||||||||||||||||||||||||||||||
|
USENIX 2003 Annual Technical Conference, General Track — Paper
[USENIX Annual Conference '03 Tech Program Index]
Next: Introduction
Currentcy: A Unifying Abstraction for Expressing Energy Management PoliciesHeng Zeng, Carla S. Ellis, Alvin R. Lebeck, and Amin Vahdat1
Abstract:
The global nature of energy creates challenges and
opportunities for developing operating system policies to effectively
manage energy consumption in battery-powered mobile/wireless devices.
The proposed currentcy model creates the framework for the
operating system to manage energy as a first-class resource.
Furthermore, currentcy provides a powerful mechanism to formulate
energy goals and to unify resource management policies across diverse
competing applications and spanning device components with very
different power characteristics.
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.
Next: Introduction Heng Zeng 2003-04-07 |
|
This paper was originally published in the
Proceedings of the
USENIX Annual Technical Conference (General Track),
June 9 – 14, 2003,
San Antonio, TX, USA
Last changed: 3 Jun 2003 aw |
|
