A procedure, which is performed by a processor of a variable updating device, includes: (a) judging whether or not the cache set is a cache set selected in advance; (b) in a case in which the corresponding cache set is judged to be the cache set selected in advance, judging which of (1) a hit and (2) a miss has occurred; and (c) carrying out a first processing that, in a case in which it is judged that the miss has occurred, updates a miss variable that expresses a number of times that misses have occurred and stores the address information in the storage portion, and a second processing that, in a case in which it is judged that the hit has occurred, updates a hit variable that expresses a number of times that hits have occurred.