What are the performance impacts of cache coherence in multi-core processors?
Cache coherence ensures that multiple caches in a multi-core system reflect the most recent data. However, it can introduce latency and bandwidth overhead.
Can you explain how cache coherence protocols affect performance?
Certainly! Protocols like MESI (Modified, Exclusive, Shared, Invalid) can reduce data inconsistency but may slow down performance due to increased communication between cores.
Are there any trade-offs when implementing cache coherence?
Yes, while cache coherence improves data consistency, it can lead to increased complexity and potential bottlenecks, impacting overall system performance.
What are some common cache coherence protocols?
Common protocols include MESI, MOESI, and MSI. Each has its own advantages and trade-offs in terms of performance and complexity.
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