| 摘要 |
PROBLEM TO BE SOLVED: To provide a cache allocation system having a main memory having a vast storage capacity and a cache memory having a smaller capacity and a high access speed, capable of shortening a program execution time without mounting a complicated cache algorithm on a CPU chip. SOLUTION: A CPU core 3 has a normal mode for performing fixed cycle processing and a measuring mode for splitting the main memory 1 and setting cache effectiveness accessed through the cache memory 2 in each split unit and cache ineffectiveness accessed by bypassing the cache memory 2. The measuring mode sets the cache effectiveness and the cache ineffectiveness so that the execution time of a fixed cycle processing program by the CPU core 3 becomes minimum. COPYRIGHT: (C)2003,JPO
|
