Power aware adaptive polling

Details Power aware adaptive polling Power aware adaptive polling

2006-08-15

2006-08-15

Lee, Thomas C. (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

C713S323000, C710S046000

Reexamination Certificate

active

07093141

ABSTRACT:
A method for adapting the periodicity of polling for pending service requests, by polling system devices for pending service requests, recording whether or not there was a pending service request and, based on accumulated data, determining whether or not the system devices are idle. Based on this determination, the system may elect to enter a power conservation mode until device activity is signaled, or an adjustable period of time elapses. The adaptation mechanism may alter the periodicity of the timer interrupt, disable or enable device interrupts, and modify variables used to determine system idleness (including minimum latency and minimum idleness thresholds). In this manner, the system can conserve power while maintaining system performance and responsiveness.

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