DocumentCode :
904670
Title :
A class of code compression schemes for reducing power consumption in embedded microprocessor systems
Author :
Benini, Luca ; Menichelli, Francesco ; Olivieri, Mauro
Author_Institution :
Dipt. di Elettronica, Inf. e Sistemistica, Bologna Univ., Italy
Volume :
53
Issue :
4
fYear :
2004
fDate :
4/1/2004 12:00:00 AM
Firstpage :
467
Lastpage :
482
Abstract :
Compression of executable code in embedded microprocessor systems, used in the past mainly to reduce the memory footprint of embedded software, is gaining interest for the potential reduction in memory bus traffic and power consumption. We propose three new schemes for code compression, based on the concepts of static (using the static representation of the executable) and dynamic (using program execution traces) entropy and compare them with a state-of-the-art compression scheme, IBM´s CodePack. The proposed schemes are competitive with CodePack for static footprint compression and achieve superior results for bus traffic and energy reduction. Another interesting outcome is that static compression is not directly related to bus traffic reduction, yet there is a trade off between static compression and dynamic compression, i.e., traffic reduction.
Keywords :
data compression; embedded systems; instruction sets; microcomputers; performance evaluation; power consumption; CodePack; IBM; code compression; dynamic entropy; embedded microprocessor system; embedded software; low-power design; memory bus traffic; microcomputer application; microprocessor application; power consumption; state-of-the-art compression scheme; static footprint compression; traffic reduction; Bandwidth; Computer Society; Computer architecture; Costs; Embedded software; Energy consumption; Hardware; Instruction sets; Microprocessors; Reduced instruction set computing;
fLanguage :
English
Journal_Title :
Computers, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9340
Type :
jour
DOI :
10.1109/TC.2004.1268405
Filename :
1268405
Link To Document :
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