# GNU gprof

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## Profiling a Program: Where Does It Spend Its Time?

This manual describes the gnu profiler, `gprof`, and how you can use it to determine which parts of a program are taking most of the execution time. We assume that you know how to write, compile, and execute programs. gnu `gprof` was written by Jay Fenlason.

This document is distributed under the terms of the GNU Free Documentation License. A copy of the license is included in the section entitled "GNU Free Documentation License".