ENERGY EFFICIENT WORKLOAD PLACEMENT MANAGEMENT BASED ON OBSERVED SERVER EFFICIENCY MEASUREMENTS

For each of a plurality of servers, a method includes obtaining current component power consumption values and calculating a current power consumption efficiency. The method further includes determining, for each of the plurality of servers, the current power consumption efficiency and an associated capacity utilization before and during performance of multiple instances of an identified workload. Then, for each server, the method determines a curve of power consumption efficiency as a function of capacity utilization that is representative of the performance of the plurality of instances of the identified workload. Embodiments of the method may then use the curve of power consumption efficiency curve in order to manage the power consumption efficiency of the plurality of servers. For example, the method may assign an additional workload to the server that is identified as having the greatest predicted power consumption efficiency.