NDLI: Source code optimization and profiling of energy consumption in embedded systems

Content Provider	ACM Digital Library
Author	Benini, Luca Šimunić, Tajana Hans, Mat De Micheli, Giovanni
Abstract	This paper presents a source code optimization methodology and a profiling tool that have been developed to help designers in optimizing software performance and energy in embedded systems. Code optimizations are applied at three levels of abstraction: algorithmic, data and instruction-level. The profiler exploits a cycle-accurate energy consumption simulator [3] to relate the embedded system energy consumption and performance to the source code. Thus, it can be used for analysis (i.e., to find energy-critical sections of the code), and for validation (i.e., to assess the impact of each code optimization).Code optimizations and profiling tool are used to optimize and tune the implementation of an MPEG Layer III (MP3) audio decoder for the SmartBadge [2] portable embedded system. We show that using our methodology and tool we can quickly and easily redesign the MP3 audio decoder software to run in real time with low energy consumption. Performance increase of 92% and energy consumption decrease of 77% (over the original executable specification) has been achieved for MP3 audio decoding on the SmartBadge.
Starting Page	193
Ending Page	198
Page Count	6
File Format	PDF
ISBN	1581132670
DOI	10.1145/501790.501831
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2000-09-20
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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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Source code optimization and profiling of energy consumption in embedded systems