In view of the foregoing, the shortcomings of the prior art cache optimization techniques, the present invention provides an improved method, system, and computer program product that can optimize cache utilization. In one embodiment, an application requests a kernel cache map from a kernel service and the application receives the kernel. The application designs an optimum cache footprint for a data set from said application. The objects, advantages and features of the present invention will become apparent from the following detailed description. In one embodiment of the present invention, the application transmits a memory reallocation order to a memory manager. In one embodiment of the present invention, the step of the application transmitting a memory reallocation order to the memory manager further comprises the application transmitting a memory reallocation order containing the optimum cache footprint to the memory manager. In one embodiment of the present invention, the step of the application transmitting a memory reallocation order to a memory manager further comprises the application transmitting the memory reallocation order containing to a reallocation services tool within the memory manager.