Question: A processor has a CPI=2 (assuming all references to the cache are a hit). The clock frequency is 2.5GHz. Main memory access time is 100ns

A processor has a CPI=2 (assuming all references to the cache are a hit). The clock frequency is 2.5GHz. Main memory access time is 100ns (including all miss handling). Miss rate per instruction at the primary cache is 3%. How much faster will the computer be if we add a secondary cache that has a 10ns access time for either a hit or a miss? The secondary cache reduces the miss rate to main memory to 0.5%. Please explain your answer.

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