Decision model generation for allocating memory control methods

A model generation apparatus according to an embodiment includes a processor circuit. The processor circuit is configured to: divide time-series data of operation information in a time direction to generate a plurality of segments; allocate any one memory control method of a plurality of memory control methods to each of the plurality of segments; estimate, for each of the plurality of segments, execution performance of memory access that is obtainable in a case where an information processing apparatus executes processing of a corresponding segment by an allocated memory control method; select a plurality of training segments from among the plurality of segments; and generate a decision model based on the selected plurality of training segments.