Adaptive real-time methodology for optimizing...

Details Adaptive real-time methodology for optimizing... Adaptive real-time methodology for optimizing...

2011-06-28

2011-06-28

Lee, Thomas (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

C713S001000, C713S100000, C713S310000, C713S320000, C713S321000, C713S322000, C713S323000, C713S324000, C713S330000, C713S340000

Reexamination Certificate

active

07971073

ABSTRACT:
Dynamic voltage and frequency scaling (DVFS) is an effective way to reduce energy and power consumption in microprocessor units. Current implementations of DVFS suffer from inaccurate modeling of power requirements and usage, and from inaccurate characterization of the relationships between the applicable variables. A system and method is proposed that adjusts CPU frequency and voltage based on run-time calculations of the workload processing time, as well as a calculation of performance sensitivity with respect to CPU frequency. The system and method are processor independent, and can be applied to either an entire system as a unit, or individually to each process running on a system.

REFERENCES:
patent: 7062394 (2006-06-01), Sun
patent: 2003/0200473 (2003-10-01), Fung
patent: 2006/0253715 (2006-11-01), Ghiasi et al.

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