gprof

Performance analysis tool for many programming languages. It profiles the function executions of a program. More information: https://ftp.gnu.org/old-gnu/Manuals/gprof/html_mono/gprof.html.

• Compile binary to default a.out with gprof information and run it to get gmon.out:

gcc {{[-p|-pg]}} {{program.c}} && ./a.out

• Run gprof on default a.out and gmon.out to obtain profile output:

gprof

• Run gprof on a named binary:

gprof {{path/to/binary}} {{path/to/gmon.out}}

• Suppress profile field’s description:

gprof {{[-b|--brief]}}

• Display routines that have zero usage:

gprof {{[-bz|--brief --display-unused-functions]}}