a. Consider an L1 cache with an access time of 1 ns and a hit ratio of

Question:

a. Consider an L1 cache with an access time of 1 ns and a hit ratio of H = 0.95. Suppose that we can change the cache design (size of cache, cache organization) such that we increase H to 0.97, but increase access time to 1.5 ns. What conditions must be met for this change to result in improved performance?
b. Explain why this result makes intuitive sense.