Consider a paging system where translation looks aside buffer (TLB) a special type of associative memory is used with a hit ratio of 80%.. Assume that memory reference takes 80 nanoseconds and reference time to TLB is 20 nanoseconds. What will be the effective memory access time given an 80 % hit ratio?
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Correct answer: B. 116 nanoseconds
Explanation
EMAT = 0.8 × (20 + 80) + 0.2 × (20 + 80 + 80) = 80 + 36 = 116 ns.
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