NDLI: Application Transformations for Energy and Performance-Aware Device Management

Content Provider	ACM Digital Library
Author	Heath, Taliver Pinheiro, Eduardo Kremer, Ulrich Bianchini, Ricardo Hom, Jerry
Abstract	Energy conservation without performance degradation is an important goal for battery-operated computers, such as lap-tops and hand-held assistants. In this paper we determine the potential benefits of application-supported device management for optimizing energy and performance. In particular, we consider application transformations that increasedevice idle times and inform the operating system about the length of each upcoming period of idleness. We assess the potential energy and performance benefits of this type of applicationsupport for a laptop disk. Furthermore, we propose and evaluate a compiler framework for performing the transformations automatically for a disk device. Our experimental results demonstrate that unless applications are transformed, they cannot accrue any of the predicted benefits. In addition, they show that our compiler can produce almost the same performance and energy results that we obtain by hand-modifying applications. Overall, we find that the transformations we propose can reduce disk energy consumption from 55% to 89% with only a small degradation in performance.
Starting Page	121
Ending Page	130
Page Count	10
ISBN	0769516203
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2002-09-22
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Application Transformations for Energy and Performance-Aware Device Management