CPU PERFORMANCE EQUATIONS
Anoushka Tripathi
Winner @DIR-V Symposium Hackathon|FPGA Trainee @SSPL DRDO, Ministry of Defence, Govt. of India|Founder @VLSI TECH with Anoushka|RISC V Design & Verification|Final year|VLSI Engineer|Bhāratīya
Let us use it to understand the equations...
CPU Execution Time - Time spent while executing the program instructions
Interpretation from problem
Which processor will have highest performance ..
The processor which have less execution time will have higher performance
What is common in all 3 processors..
They are executing same program
so one thing is sure all 3 are executing same number of instructions
That is why we get
Execution time* 0.7 = (Num of instructions* CPI* 1.2) / (New Clock rate)
New Clock rate = Clock rate * 1.2 / 0.7 = 1.71* Clock rate
New Clock rate for processor: P1: 3GHz * 1.71 = 5.13 GHz