Method and apparatus for improving efficiency of a cloud platform based on node usage

A profiling-based energy-aware recommendation method for a cloud platform at a cloud mediator interface may include: collecting usage data of a cloud node over predetermined intervals of time; generating and storing an energy usage profile for each node by using the collected usage data; acquiring real-time usage data from the cloud node; and comparing the real-time usage data with the generated energy usage profile so as to calculate a recommendation value.