What are cache coherency issues?
Cache coherency issues arise when multiple processors or cores in a system have their own caches, leading to inconsistencies.
Can you explain why these issues are important?
They are crucial because they can affect the performance and correctness of programs running on multi-core systems.
How do modern processors handle these issues?
Modern processors use protocols like MESI (Modified, Exclusive, Shared, Invalid) to maintain cache coherency.
What happens if cache coherency is not maintained?
If not maintained, it can lead to stale data being read, causing incorrect program behavior and potential crashes.
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