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A CPU has level 1 cache and level 2 cache, with access times of 5 nsec and 10 nsec

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Question

A CPU has level 1 cache and level 2 cache, with access times of 5 nsec and 10 nsec respectively. The main memory access time is 50 nsec. If 20% of the accesses are level 1 cache hits and 60% are level 2 cache hits, what is the average access time?

 

Paper#17342 | Written in 18-Jul-2015

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