What are the benefits of cache coherence protocols?
Cache coherence protocols ensure that multiple caches in a system maintain a consistent view of memory, which improves data integrity and performance.
Can you explain how they improve performance?
They reduce the latency of memory access by ensuring that the most recent data is available in the cache, minimizing the need for slower main memory access.
What are some common types of cache coherence protocols?
Common types include MESI (Modified, Exclusive, Shared, Invalid), MOESI, and MSI protocols, each with different strategies for maintaining coherence.
Are there any downsides to using these protocols?
Yes, they can introduce overhead due to the need for communication between caches, which can impact performance in certain scenarios.
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