What is cache coherence?
Q: What is cache coherence?
A: Cache coherence refers to ensuring that all caches of a resource have the same data and that the data in the caches is consistent (data integrity).
Q: What is the purpose of cache coherence?
A: The purpose of cache coherence is to manage conflicts between multiple caches of a common memory resource and maintain consistency between cache and memory.
Q: What can be the consequences of not having cache coherence?
A: Without cache coherence, data in the cache may no longer make sense, or one cache may no longer have the same data as the others, which can result in inconsistencies and errors.
Q: What is a common case where problems with cache coherence occur?
A: A common case where problems with cache coherence occur is the cache of CPUs in a multiprocessing system.
Q: How does cache coherence work?
A: Cache coherence works by ensuring that all caches of a resource have the same data and that the data in the caches is consistent through various methods.
Q: What is meant by memory coherence?
A: Memory coherence refers to the consistency of data across a shared memory resource.
Q: How can cache coherence improve performance?
A: Cache coherence can improve performance by allowing for faster and more efficient access to a given resource.
