How do cache coherence protocols work?
An example of an AI chatbot conversation about cache coherence protocols in computer architecture.
Can you explain how cache coherence protocols work?
Sure! Cache coherence protocols ensure that multiple caches in a multiprocessor system maintain a consistent view of shared data.
What are the different types of cache coherence protocols?
There are mainly two types: directory-based protocols and snooping protocols. Directory-based keeps track of which caches have copies of data, while snooping protocols allow caches to monitor each other.
How do these protocols handle data updates?
When data is updated in one cache, the protocol ensures that other caches either invalidate their copies or update them, depending on the protocol rules.
Can you give an example of a specific protocol?
Certainly! The MESI protocol is a popular snooping protocol that uses four states: Modified, Exclusive, Shared, and Invalid to manage cache states.
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