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5 stage pipeline → 3,6,5,8,4 latencies(in ns).What is average CPI of non pipelined CPU when speed up achieved by to pipeline is 4 ? (ans = 1.23)

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We know ,Speed up=Time for Non-pipeline/Time for pipeline=Tnp * CPInp/Tp* CPIp

We know,CPI for pipeline =1 Tnp=3+6+5+8+4=26 Tp=max(3,6,5,8,4)=8,Speedup=4(given)

Putting the values ,we get CPI np=1.2
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