dc.contributor.author | Agarwal, Deepak N. | |
dc.contributor.author | Pamnani, Sumitkumar N. | |
dc.contributor.author | Qu, Gang | |
dc.contributor.author | Yeung, Donald | |
dc.date.accessioned | 2009-05-06T14:56:51Z | |
dc.date.available | 2009-05-06T14:56:51Z | |
dc.date.issued | 2004-05 | |
dc.identifier.citation | D. Agarwal, S. Pamnani, G. Qu, and D. Yeung. "Transferring Performance Gain from Software Prefetching to Energy Reduction," IEEE International Symposium on Circuits and Systems, Vol. 2, pp. 241-244, May 2004. | en |
dc.identifier.uri | http://hdl.handle.net/1903/9061 | |
dc.description.abstract | Performance-enhancement techniques improve CPU speed, but at
higher cost to other valuable system resources such as power and
energy. We study this trade-off using software prefetching as the
system performance-enhancement technique. We first demonstrate
software prefetching provides an average 36% performance boost
with 8% more energy consumption and 69% higher power on six
memory-intensive benchmarks. However, when we combine prefetching
with a (unrealistic) static voltage scaling technique, the performance
gain afforded by prefetching can be traded off for savings
in power/energy consumption. In particular, we observe a 48% energy
saving when we slow down the system with prefetching so
as to match the performance of the system without prefetching.
This suggests a promising approach to build low power systems
by transforming traditional performance-enhancement techniques
into low power methods. We thus propose a real time dynamic
voltage scaling (DVS) algorithm that monitors a system’s performance
and adapts the voltage level accordingly while maintaining
the observed system performance. Our dynamic DVS algorithm
achieves a 38% energy saving without any performance loss on our
benchmark suite. | en |
dc.format.extent | 285341 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | en |
dc.publisher | IEEE | en |
dc.subject | CPU | en |
dc.subject | energy use | en |
dc.subject | prefetching | en |
dc.title | TRANSFERRING PERFORMANCE GAIN FROM SOFTWARE PREFETCHING TO ENERGY REDUCTION | en |
dc.type | Article | en |
dc.relation.isAvailableAt | A. James Clark School of Engineering | en_us |
dc.relation.isAvailableAt | Electrical & Computer Engineering | en_us |
dc.relation.isAvailableAt | Digital Repository at the University of Maryland | en_us |
dc.relation.isAvailableAt | University of Maryland (College Park, MD) | en_us |
dc.rights.license | Copyright © 2004 IEEE. Reprinted from IEEE International Symposium on Circuits and Systems.
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