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What is MESI Cache Coherence Protocol Overview about?

The MESI cache coherence protocol defines the state transitions of cache lines between Invalid, Shared, Exclusive, and Modified states in response to local and bus events such as reads, writes, evictions, and broadcasts. When a local processor performs a read, the cache line transitions to Shared if other caches may contain the line or Exclusive if not; for a write it transitions to Modified. Bus events such as reads and writes from other caches can trigger data transfers and acknowledgments to maintain a c

Author

Manjunath HS

Language

EN