Fine-grain data classification to filter token coherence traffic
Journal of Parallel and Distributed Computing(2023)
摘要
Snoop-based cache coherence protocols perform well in small-scale systems by enabling low latency cache-to-cache data transfers in just two-hop coherence transactions. However, they are not a scalable alternative as they require frequent broadcast of coherence requests. Token coherence protocols were proposed to improve the scalability of snoop-based protocols by removing a large amount of traffic due to broadcast responses. Still, broadcasting coherence requests on every cache miss represents a scalability issue for medium and large-scale systems.
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关键词
Multicore,Cache coherence,Private-shared data classification,Token protocol
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