基于总线侦听Cache一致性协议算法与实现  

Algorithm and Realization of Cache Coherence Based on Buses of Snoopy Protocol

作　　者：彭军[1] 杨乐[1] 稂婵新[1] 盛立琨[1] 

机构地区：[1]江西农业大学,江西南昌330045

出　　处：《计算机与现代化》2007年第10期22-25,共4页Computer and Modernization

摘　　要：以共享总线的多处理机系统为例,本文介绍了在共享总线系统中用于解决Cache问题的侦听总线一致性协议,并基于总线侦听Cache一致性协议的优点和协议区分状态的原因,给出了一个评价协议好坏的角度:总线的流量和存储器访问的有效时间,最后给出了基于总线侦听Cache一致性协议算法与实现。Taking the multi-processor system of the common bus as the example, this paper introduces the snoopy protocol used for solving the cache coherence in the common bus system, analyzes the advantages of the coherence protocol and the causes of the separating state of the protocols, and gives an angle for evaluating the good or bad of a protocol ： the flow of the bus and valid time of the access of the memory, finally, introduces the algorithm and realization of the cache coherence based on Buses of Snoopy Protocol.

关 键 词：高速缓存一致性 CACHE 侦听协议 MESI 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]