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Effective memory access time :-

TLB hit* ( TLB time + cache hit* cache time+ cache miss *( cache time + memory access time) + TLB miss * (TLB time + 2* memory access time + cache hit* cache time+ cache miss *( cache time + memory access time)

$=0.9(30+ 0.9*30 +0.1*(30+80) + 0.1*(30+2*80+0.9*30+0.1*(30+80)$

$=61.2+22.8$

$=84 ns$

GATE CSE 2003 | Question: 78 - GATE Overflow for GATE CSE