METHOD AND APPARATUS FOR DYNAMIC POWER MANAGEMENT IN A PROCESSOR SYSTEM

摘要

A dynamic power management system includes an operating system (OS) that causes a processor to operate in one of multiple run states that have different performance and/or power dissipation levels. The OS selects the ru n state in response to processor information (e.g., processor load) being monitored by the OS. The OS can predict future states of the processor information based on sampled processor information. The OS can take an avera ge of the predicted and actual samples for comparison with a threshold to selec t a run state. The OS can track the number of consecutive saturated samples th at occur during a selected window of samples. The OS can predict future process or information samples based on the number of consecutive saturated samples.