Using Asymmetric Single-ISA CMPs to Save Energy on Operating Systems

CPUs consume too much power. Modern complex cores sometimes waste power on functions that are not useful for the code they run. In particular, operating system kernels do not benefit from many power-consuming features intended to improve application performance. We advocate asymmetric single-ISA mul...

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Bibliographic Details
Published inIEEE MICRO Vol. 28; no. 3; pp. 26 - 41
Main Authors Mogul, J.C., Mudigonda, J., Binkert, N., Ranganathan, P., Talwar, V.
Format Journal Article
LanguageEnglish
Published Los Alamitos IEEE 01.05.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Application software
Asymmetry
Chemical-mechanical polishing
Consumption
Electronics
Energy conservation
Energy consumption
Energy efficiency
Energy management
Energy measurement
Energy use
Instruction sets
Kernel
Kernels
Multicore processing
Multiprocessing
multiprogramming
Operating systems
Performance evaluation
power management
Power system modeling
Simulation
simulation of multiple-processor systems
Software engineering
Wastes
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Summary:CPUs consume too much power. Modern complex cores sometimes waste power on functions that are not useful for the code they run. In particular, operating system kernels do not benefit from many power-consuming features intended to improve application performance. We advocate asymmetric single-ISA multicore systems, in which some cores are optimized to run OS code at greatly improved energy efficiency.
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ISSN:0272-1732
1937-4143
DOI:10.1109/MM.2008.47