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A translational look aside buffer is a hardware device used for speeding up the conversation from virtual address to physical address. Consider a memory management unit where a memory reference takes 500 nanoseconds; TLB (Translation Look aside Buffer) reference takes 40 nanoseconds; and the hit-rate achieved with the use of TLB is 80%. The speed-up (in %) we gained using TLB technique compared to the pure paging with no TLB ________.

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without TLB its EAT will be 1*500 =500 ns

with TLB it is .8*40+.2*500= 132 ns

speed up = time before enhancement / time after enhance ment

               = 500/132

                =3.78

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