Energy Efficient Optimization in Multicore Processors Under Quality of Service (QoS)/Performance Constraints

摘要

A mechanism is provided for optimizing energy efficiency in a set of processor cores while maintaining application performance for a set of applications. A quality of service (QoS) level is received for one or more active applications in the set of applications and state information associated with each processor core in the set of processor cores is identified. Responsive to the QoS level and the state information indicating an action to be implemented, a change is implemented to reduce power utilization by one or more processor cores in the set of processor cores in the data processing system, where the change is via at least one of dynamic frequency scaling, dynamic voltage scaling, or core folding.

主权项

1. A method, in a data processing system, for optimizing energy efficiency in a set of processor cores while maintaining application performance for a set of applications, the method comprising:
receiving a quality of service (QoS) level for one or more active applications in the set of applications; identifying state information associated with each processor core in the set of processor cores; and responsive to the QoS level and the state information indicating an action to be implemented, implementing a change to reduce power utilization by one or more processor cores in the set of processor cores in the data processing system, wherein the change is via at least one of dynamic frequency scaling, dynamic voltage scaling, or core folding.