What is cache architecture and why is it important?

What is cache architecture and why is it important?

Cache architecture refers to the design and organization of cache memory in a computer system. It's crucial because it helps speed up data access by storing frequently used data closer to the CPU.

How does cache memory improve performance?

Cache memory improves performance by reducing the time it takes for the CPU to access data. It stores copies of frequently accessed data, minimizing the need to fetch it from slower main memory.

What are the different types of cache?

There are several types of cache, including L1, L2, and L3 caches, which differ in size and speed. L1 is the fastest and smallest, while L3 is larger but slower.

Can you explain cache coherence?

Cache coherence is a protocol that ensures that multiple caches in a system maintain a consistent view of memory. This is important in multi-core processors to prevent data inconsistency.

What are some common cache replacement policies?

Common cache replacement policies include Least Recently Used (LRU), First In First Out (FIFO), and Random Replacement. Each has its own advantages depending on the workload.