Question

Consider a nonpipelined machine with 5 execution stages of lengths 50 ns,

50 ns, 60 ns, 70 ns, and 50 ns.

i. Find the instruction latency on this machine.

ii. How much time does it take to execute 200 instructions?

Answer 1

i. Instruction latency $= 50+50+60+70+50$

$= 280 ns$

ii. Time to execute 100 instructions $= 200\times280$

$= 56000 ns$