Optimizing runtime performance of an application workload by minimizing network input/output communications between virtual machines on different clouds in a hybrid cloud topology during cloud bursting

A system, comprising:

• a memory unit for storing a computer program for optimizing runtime performance of an application workload in a hybrid cloud topology;
• and
• a processor coupled to the memory unit, wherein the processor is configured to execute the program instructions of the computer program comprising:
• measuring network input/output (I/O) operations between virtual machines of a pattern of virtual machines servicing said application workload in a private cloud over a period of time;
• generating a score for each of a plurality of virtual machines or for each group of a plurality of groups of virtual machines in said pattern of virtual machines used to service said application workload based on a highest number of samples within a range of I/O operations per second using said measured network I/O operations and a number of virtual machines in said pattern of virtual machines that are allowed to be in a public cloud;
• ranking each of said plurality of virtual machines or each group of said plurality of groups of virtual machines in said pattern of virtual machines based on said score;
• and
• migrating one or more of said plurality of virtual machines or one or more groups of said plurality of groups of virtual machines in said pattern of virtual machines to said public cloud to service said application workload in response to said score for said one or more of said plurality of virtual machines or for said one or more groups of said plurality of groups of virtual machines in said pattern of virtual machines exceeding a threshold value.