摘要
当前 ,绝大多数分布式共享存储系统采用基于目录的Cache一致性协议。介绍了几种典型的目录组织方案 ,并对它们进行了比较。提出一种新的目录组织方案。该方案采用位向量和有限指针混合的两级目录结构 ,在存储开销上比位向量目录优越 ,比有限指针目录增加不多 ;而在时间性能上 ,优于有限指针目录 ,接近位向量目录。
Most DSM(Distributed Shared Memory) systems use directory-based cache-coherent protocols. We introduced and compared some typical directory organization schemes, then presented a new two-layer directory organization scheme. The first layer was bit vector directory and the second layer was limited pointers directory. The analysis shows that this new scheme has the better property than any one of the former schemes, and is suitable for very-large multi-processor systems.
出处
《计算机应用》
CSCD
北大核心
2004年第9期136-138,共3页
journal of Computer Applications
