NDLI: A dynamic frequency scaling solution to DPM in embedded Linux systems

Content Provider	IEEE Xplore Digital Library
Author	Zhang Yuhua Qian Longhua Lv Qiang Qian Peide Zhao Lei
Copyright Year	2009
Description	Author affiliation: School of Computer Science and Technology, Soochow University, Suzhou, China (Zhang Yuhua; Qian Longhua; Lv Qiang; Qian Peide; Zhao Lei)
Abstract	Traditional power management enables CPU to switch among different power consumption modes such as running, idle and standby to save energy to a certain degree. In battery-powered embedded Linux systems, power management plays an even more important role than in desktops. This paper proposes a solution to dynamic power management (DPM) based on dynamic frequency scaling (DFS). According to the system workload, it switches the working frequency among several predefined settings. This paper presents a design and implementation of the solution in an embedded Linux system. Experimental results on an Intel PXA250-based system have demonstrated that the system running a DPM-enabled Linux can save up to 44% of execution time with less than 8% extra power consumption in an email application.
Starting Page	256
Ending Page	261
File Size	116537
Page Count	6
File Format	PDF
ISBN	9781424441143
DOI	10.1109/IRI.2009.5211561
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency Linux Energy consumption Energy management Power system management Switches Dynamic voltage scaling Embedded system Battery management systems Electronic mail Embedded Linux Dynamic Frequency Scaling Dynamic Voltage Scaling
Content Type	Text
Resource Type	Article

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