Question: Consider a two-level memory system (i.e., cache and main memory). Assume the cache access time is 3 clock cycles, and the hit rate is 95%.

Consider a two-level memory system (i.e., cache and main memory). Assume the cache access time is 3 clock cycles, and the hit rate is 95%. What should be the main memory access time (penalty) to ensure the memory access efficiency stays at 0.90?

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