Cycles per instruction: Difference between revisions

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{{Refimprove|date=December 2009}}

In [[computer architecture]], '''cycles per instruction''' (aka '''clock cycles per instruction''', '''clocks per instruction''', or '''CPI''') is one aspect of a [[central processing unit|processor's]]'s performance: the average number of [[clock cycle]]s per [[Instruction (computer science)|instruction]] for a program or program fragment.<ref>{{cite book |title=Computer Organization and Design: The Hardware/Software Interface|url=https://archive.org/details/computerorganiza00henn|url-access=registration|first=David A.|last1=Patterson|first2=John L.|last2=Hennessy|year=1994|isbn=9781558602816}}</ref> It is the [[multiplicative inverse]] of [[instructions per cycle]].

==Definition==