CACHE MEMORY DEVICE, CACHE MEMORY CONTROL DEVICE, INFORMATION PROCESSING DEVICE, CACHE MEMORY CONTROL METHOD, AND THRESHOLD VALUE DETERMINATION PROGRAM FOR CACHE MEMORY DEVICE

摘要

A cache memory device comprising: a cache memory (4) comprising at least one block comprising a plurality of entries (40) and including for each entry (40) data (42) and a status (43) that indicates the status of the data (42); and a control unit (5) that replaces the data (42) for each block in the cache memory (4). The control unit (5) comprises: a counter (53) that counts for each entry (40) the number of times the data (42) is replaced in each entry (40); and a switching unit (541) that switches the replacement method for the data (42) according to the number of replacements.