What are the different cache coherence protocols used in multiprocessor systems?
There are several cache coherence protocols, including MESI, MOESI, and MSI. Each has its own method for maintaining consistency.
Can you explain the MESI protocol in detail?
Sure! MESI stands for Modified, Exclusive, Shared, and Invalid. It helps manage the states of cache lines to ensure data consistency.
What are the advantages of using MOESI over MESI?
MOESI adds an 'Owned' state, allowing a cache to hold a copy of data that is shared with other caches, reducing memory access.
How do these protocols affect system performance?
They significantly impact performance by reducing latency and improving data access speeds, but they also add complexity.
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