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Adding short description: "Portable interface (in the form of a library) to hardware performance counters on modern microprocessors" |
Changing short description from "Portable interface (in the form of a library) to hardware performance counters on modern microprocessors" to "Software library for microprocessor metrics" |
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{{Short description|
In [[computer science]], '''Performance Application Programming Interface (PAPI)''' is a portable [[application programming interface|interface]] (in the form of a [[library (computing)|library]]) to [[hardware counter|hardware performance counters]] on modern [[microprocessor]]s. It is being widely used to collect low level performance metrics (e.g. [[Instruction (computer science)|instruction]] counts, [[clock cycle]]s, [[cache miss]]es) of computer systems running [[UNIX]]/[[Linux]] [[operating system]]s.
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