DYNAMIC POWER MANAGEMENT OPTIMIZATION

摘要

Systems, apparatuses, and methods for managing power usage of integrated circuits. One or more processor cores may be powered down when the system is idle. Even if there is no user activity, the processor core(s) may be woken up periodically for background downloads to retrieve the latest status for social media and other applications. Additionally, a power management unit may track the average number of active cores and the average core utilization. If the average number of active cores is less than a first threshold and the average core utilization is less than a second threshold, the power management unit may generate a request to offline one or more cores. Still further, when the processor's skin temperature is above a threshold and all of the cores are operating at the lowest acceptable operating point, one or more cores may be powered down.

主权项

1. A method comprising:
initiating power down of a compute unit; determining a value of a wakeup timer based at least in part on a history of activity of the compute unit; starting the wakeup timer; and powering down the compute unit until the wakeup timer expires.