Hybrid Cache Coherence Protocol Suitable for Multi-core Environment
Jingmei Li, Yang Peng-fei, Zhang Jianpei, Yanxia Wu · Jisuanji gongcheng · 2011
This paper presents a hybrid Cache coherence protocol suitable for multi-core environment.It uses the hybrid value propagation police,introduces a small capacity directory,D-Cache.The protocol overcomes the shortcoming of traditional coherence protocol that data request is undifferentiated broadcasted.It extends data block state so that eliminates ping-pang phenomenon.Simulation experimental results show that the protocol reduces test workload runtime and L1 Cache miss rate,improves the system performance.