DYNAMICALLY SELECTING PROCESSOR CORES FOR OVERALL POWER EFFICIENCY

A computer system for conserving operating power includes a number of computer hardware processor cores that differ amongst themselves in at least in their respective operating power requirements and processing capabilities. A monitor gathers performance metric information from each of the computer hardware processor cores that is specific to a particular run of application software then executing. A workload transfer mechanism transfers the executing application software to a second computer hardware processor core in a search for reduced operating power. A transfer delay mechanism is connected to delay a subsequent transfer of the executing application software if the system operating power may be conserved by such delay.