An effective feedback-driven approach for energy saving in battery powered systems

Author

Le, Duy ; Wang, Haining

Author_Institution

Dept. of Comput. Sci., Coll. of William & Mary, Williamsburg, VA, USA

fYear

2010

fDate

16-18 June 2010

Firstpage

1

Lastpage

9

Abstract

Energy efficiency is essential to battery-powered (BP) mobile systems. However, existing energy efficiency techniques suffer from imbalance between system performance and power consumption. This paper presents a Feedback QoS based Model, called FQM, to successfully achieve power reduction without performance degradation. By observing system behavior via control variables, FQM applies pre-estimated policies to monitor and schedule I/O activities. We implement a prototype of FQM under Linux kernel and evaluate its effectiveness with different applications in terms of power consumption, QoS, and performance. Our experimental results show that FQM can effectively save energy while maintaining high QoS stability.

Keywords

Unix; battery management systems; power aware computing; power consumption; quality of service; Linux kernel; battery powered mobile systems; energy efficiency; energy saving; feedback QoS; feedback driven approach; power consumption; Batteries; Control systems; Degradation; Energy consumption; Energy efficiency; Feedback; Monitoring; Power system modeling; Prototypes; System performance; Energy; Feedback Control; QoS;

fLanguage

English

Publisher

ieee

Conference_Titel

Quality of Service (IWQoS), 2010 18th International Workshop on

Conference_Location

Beijing

ISSN

1548-615X

Print_ISBN

978-1-4244-5987-2

Type

conf

DOI

10.1109/IWQoS.2010.5542738

Filename

5542738