For a given number of instructions, assume CPI is increased by 20%, and clock cycle time...
For a given number of instructions, assume CPI is increased by 20%, and clock cycle time is decreased by 10%. The program execution time ___________.
a. remains the same
b. increases
c. decreases
Homework Answers
CPU Time = I * CPI * T.
I = number of instructions in program;
CPI = average cycles per instruction;
T = clock cycle time
T1 = CPI1 * T1
T2 = (1.2)CPI1 *(0.9)T1
T1/T2 = 1/(1.2 * 0.9)
T2 = (1.08) * T1
So The program execution time
b. increases
If you have any doubts comment below and i am happy to help :)
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For a given number of instructions, assume CPI is increased by
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