Managing power consumption of a computer

Methods, computers, and products for managing power consumption of a computer, the computer including a computer processor and managing power consumption of a computer includes: dynamically during operation of the computer, setting, by an in-band power manager in dependence upon performance metrics of the computer processor, a current performance state (p-state) of the computer processor; and providing, by the in-band power manager to an out-of-band power manager, the current p-state of the computer processor.