A program (or a program task) takes 150 million instructions to execute on a processor running...
A program (or a program task) takes 150 million instructions to
execute on a processor running at 2.7 GHz. Suppose that 50% of the
instructions execute in 3 clock cycles, 30% execute in 4 clock
cycles, and 20% execute in 5 clock cycles. What is the execution
time for the program or task?
Suppose the processor in the previous question part is
redesigned so that all instructions that initially executed in 5
cycles and all instructions executed in 4 cycles now execute in 2
cycles. Due to changes in the circuitry, the clock rate also must
be decreased from 2.7 GHz to 2.1 GHz. What is the overall
percentage improvement?
Homework Answers
Firstly we calculated number of cycles required to execute all the instruction. When we divide number of cycles by the given processor frequency, we get execution time of the program. In both cases we did same and then found out the percentage improvement.
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A program (or a program task) takes 150 million instructions to
execute on a processor running...
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Suppose the processor in the previous example is redesigned so that all instructions that initially executed...
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