一、前言 为了提高计算机系统的性能,结构设计者急待要解决的问题之一是使处理机与主存贮器在速度上实现匹配,以保证处理机接近“全速”工作。通常采用的方法是在处理机与主存之间插入一个高速缓冲存贮器——cache存贮器。cache存贮器是一个小容量、高速的缓冲器。它暂时 I. INTRODUCTION In order to improve the performance of computer systems, one of the problems that the architect urgently needs to solve is to match the speed of the processor and the main memory to ensure that the processor approaches “full speed” work. A common approach is to insert a cache memory, cache memory, between the processor and main memory. Cache memory is a small capacity, high-speed buffer. It is temporary