Power management system that changes processor level if...

Details Power management system that changes processor level if... Power management system that changes processor level if...

2006-03-21

2006-03-21

Wang, Albert (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S320000, C713S322000

Reexamination Certificate

active

07017060

ABSTRACT:
A method for automatically transitioning a processor to another performance level in a demand-based system. One embodiment of the invention provides for the automatic adjustment of processor frequency while preserving system responsiveness. The performance-level policy algorithm detects increased processor utilization quickly enough that transition to a higher performance level is comparable to maximum system performance. The performance-level policy algorithm delays processor transition to a lower performance level so that quick reversals in demand do not precipitate unnecessary transitioning.

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PCT Search Report, International Application No. PCT/US 02/02028, mailed Apr. 9, 2003, (6 pages).

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