I’m trying to grasp the performance advantages of CPU caches, particularly in scenarios where fetching a cache line (e.g., 64 bytes) from main memory to the cache incurs the same latency as directly accessing main memory because we are just fetching from memory at the end,So i am having really difficult understanding the benefits of cache(spatial locality).
(By the way i feel the advatages of cache when it is used for frequently accessed datas but here I don’t get the advantage of caching the next block of instructions(spatial locality)).