User level control of power management policies

摘要

In one embodiment, the present invention includes a processor having a core and a power controller to control power management features of the processor. The power controller can receive an energy performance bias (EPB) value from the core and access a power-performance tuning table based on the value. Using information from the table, at least one setting of a power management feature can be updated. Other embodiments are described and claimed.

主权项

1. A processor comprising:
a plurality of cores and a power controller to control a plurality of power management features of the processor, the power controller to receive a workload configuration input and receive an energy performance bias (EPB) value corresponding to a single input value from at least some of the plurality of cores and determine global EPB value based thereon, to control the plurality of power management features and to update at least one setting of at least one of the plurality of power management features based on the workload configuration input and the global EPB value.