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In computing, cache coherence (also cache coherency) refers to the consistency of data stored in local caches of a shared resource. Cache coherence is a special case of memory coherence.

Cache Coherence

Definition

Coherency protocol

MSI protocol

Intel

AMD

MESI protocol

Intel

AMD

MOESI protocol

Intel

AMD

Dragon protocol

Intel

AMD

References

  1. Cache Coherence
  2. Cache consistency & MESI Intel
  3. A closer look at AMD's dual-core architecture
  4. CSE 400 – Related Work: Instructions & Example
  5. Trace-Driven Simulation of the MSI, MESI and Dragon Cache Coherence Protocols