CACHE MEMORY DEVICE, CACHE MEMORY CONTROL METHOD, PROGRAM, AND INTEGRATED CIRCUIT

摘要

A cache memory device performs a line size determination process to determine a line size to be refilled, prior to a refill process performed at the time of a cache miss. In the line size determination process, read/write numbers of management target lines which belong to a set are acquired (S51); when all read numbers are identical and all write numbers are identical (S52: Yes), the line size to be refilled is determined to be a large size (S54); when not all of the read numbers or not all of the write numbers are identical (S52: No), the line size to be refilled is determined to be a small size (S55).