What are coherence protocols in computer architecture?
Coherence protocols ensure that multiple caches in a system maintain a consistent view of memory, preventing stale data.
How do these protocols impact system performance?
They can significantly affect performance by influencing cache hit rates, memory access times, and overall system throughput.
Can you give an example of a coherence protocol?
Sure! The MESI protocol (Modified, Exclusive, Shared, Invalid) is a widely used coherence protocol that helps manage cache states.
What are the trade-offs of using different coherence protocols?
Different protocols offer varying levels of performance and complexity; for instance, some may reduce latency but increase overhead.
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