A computer executes a benchmark which has 25 x 106 INT instructions, 55 x 106 FP instructions, 40 x 106 L/S instructions and 10 x 106 Branch instructions. The CPI for each type of instruction is 4, 16, 12, and 8, respectively. Assume that the processor has a 2 GHz clock rate. If the program has to run two times faster with the same clock rate, by how much must the CPI of FP instructions be improved?

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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A computer executes a benchmark which has 25 x 106
INT instructions, 55 x 106 FP instructions, 40 x 106 L/S
instructions and 10 x 106 Branch instructions. The CPI
for each type of instruction is 4, 16, 12, and 8,
respectively. Assume that the processor has a 2 GHz
clock rate. If the program has to run two times faster
with the same clock rate, by how much must the CPI of
FP instructions be improved?
Transcribed Image Text:A computer executes a benchmark which has 25 x 106 INT instructions, 55 x 106 FP instructions, 40 x 106 L/S instructions and 10 x 106 Branch instructions. The CPI for each type of instruction is 4, 16, 12, and 8, respectively. Assume that the processor has a 2 GHz clock rate. If the program has to run two times faster with the same clock rate, by how much must the CPI of FP instructions be improved?
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