How does cache coherence affect multithreading?
An example of an AI chatbot conversation about cache coherence in multithreading.
Can you explain how cache coherence impacts multithreading performance?
Cache coherence ensures that multiple processors have a consistent view of memory, which is crucial for multithreading.
What happens if cache coherence is not maintained?
Without cache coherence, threads may read stale data, leading to incorrect results and unpredictable behavior.
Are there different protocols for maintaining cache coherence?
Yes, there are several protocols like MESI, MOESI, and MSI that help maintain cache coherence in multiprocessor systems.
How do these protocols affect performance?
These protocols can introduce overhead due to communication between caches, but they are essential for ensuring data consistency.
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