Centralized Shared-Memory Architectures

 

 

 

 

Cache Coherence

 

 

 

 

Cache Coherence

 

 

 

 

Cache Coherence

 

 

 

 

Cache Coherence

 

 

 

 

Cache-Coherence Protocols

 

 

 

Bus Snooping Protocols

 

 

Bus Snooping Protocols

 

Performance Differences between Bus Snooping Protocols

 

 

 

Implementation of Write Invalidate Protocols

 

 

 

 

Implementation of Write Invalidate Protocol on Write-Back caches.

 

 

 

 

Implementation of Write Invalidate Protocol on Write-Back caches.

 

 

 

Implementation of Write Invalidate Protocol on Write-Back caches.

 

 

 

An Example Centralized Shared-Memory Snooping Protocol

 

An Example Centralized Shared-Memory Snooping Protocol

An Example Centralized Shared-Memory Snooping Protocol

These state transitions have no analog in a uniprocessor cache controller.

An Example Centralized Shared-Memory Snooping Protocol