| 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 n the set of processor cores; and responsive to the QoS level and the state information indicating an action to be implemented, implementing the action to reduce power utilization by one or more processor cores in the set of processor cores in the data processing system, wherein the action is selected from the group consisting of a first action, a second action, a third action, a fourth action, a fifth action, a sixth action, and a seventh action, and wherein:
responsive to the state information indicating that all of the set of processor cores are active and the QoS level indicating the absence of a violation or a warning, the first action decreases an operating frequency only or decreases the operating frequency and a voltage of the one or more processor cores in the set of processor cores in the data processing system,responsive to the state information indicating that all of the set of processor cores are active and the QoS level indicating a warning, the second action folds a predetermined number of processor cores in the set of processor cores in the data processing system,responsive to the state information indicating that all of the set of processor cores are active and the QoS level indicating a violation, the third action increases an operating frequency only or increases the operating frequency and a voltage of the one or more processor cores in the set of processor cores in the data processing system,responsive to the state information indicating that one or more processor cores in the set of processor cores is folded and the QoS level indicating the absence of a violation or warning, and an operating frequency of one or more processor cores in the set of processor cores being greater than a minimum operating frequency, the fourth action unfolds all folded processor cores in the set of processor cores in the data processing system,responsive to the state information indicating that one or more processor cores in the set of processor cores is folded and the QoS level indicating the absence of a violation or a warning, and an operating frequency of one or more processor cores in the set of processor cores being equal to a minimum operating frequency, the fifth action folds a predetermined number of processor cores in the set of processor cores in the data processing system,responsive to the state information indicating that one or more processor cores in the set of processor cores is folded and the QoS level indicating a warning, the sixth action folds a predetermined number of processor cores in the set of processor cores in the data processing system, orresponsive to the state information indicating that one or more processor cores in the set of processor cores is folded and the QoS level indicating a violation, the seventh action unfolds a predetermined number of processor cores in the set of processor cores in the data processing system. |
