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Question

From clock cycles to instruction count and CPI

Number of clock cycles for program depends on:

  • Number of instructions executed (instruction count)
    • Determined by [...]
  • Average number of clock cycles per instruction (CPI)
    • Determined by CPU hardware
    • Usually, different instructions have different CPI
    • CPI of a program (code sequence) depends on instructions executed (instruction mix)
Answer
ISA and compiler

Question

From clock cycles to instruction count and CPI

Number of clock cycles for program depends on:

  • Number of instructions executed (instruction count)
    • Determined by [...]
  • Average number of clock cycles per instruction (CPI)
    • Determined by CPU hardware
    • Usually, different instructions have different CPI
    • CPI of a program (code sequence) depends on instructions executed (instruction mix)
Answer
?

Question

From clock cycles to instruction count and CPI

Number of clock cycles for program depends on:

  • Number of instructions executed (instruction count)
    • Determined by [...]
  • Average number of clock cycles per instruction (CPI)
    • Determined by CPU hardware
    • Usually, different instructions have different CPI
    • CPI of a program (code sequence) depends on instructions executed (instruction mix)
Answer
ISA and compiler
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From clock cycles to instruction count and CPI Number of clock cycles for program depends on: Number of instructions executed (instruction count) Determined by ISA and compiler Average number of clock cycles per instruction (CPI) Determined by CPU hardware Usually, different instructions have different CPI CPI of a program (code sequence) depends on instructio

Original toplevel document (pdf)

owner: pavestonelaboringuntitled - (no access) - 03 Performance.pdf, p14

Summary

statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Details

No repetitions

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