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Tech riderRev. 4 Oct 2026

GNU gprof

Ch 295.5of 29 Profiling Software
  1. 1Runs onLinux, self-hosted
  2. 2CostsFree plan
  3. 3Profiling modesboth
  4. 4Supported languagesC, C++
  5. 5CPU profilingYes
  6. 6Deployment modeldesktop
6 lines stated Written from the maker's own pages: sourceware.org
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Overview

GNU gprof is ranked #29 of 29 in profiling software on Specifiction. It runs on Linux, Self-hosted. There is a free plan.

GNU gprof plans and pricing

All plans
GNU gprof Free GNU Binutils command-line profiler sourceware.org · 4 Oct 2026

Compared on profiling software

Profiling modes
bothsourceware.org
Supported languages
C, C++sourceware.org
CPU profiling
Yessourceware.org
Deployment model
desktopsourceware.org

Facts

Purpose
GNU gprof analyzes profiling data to show which parts of a program take the most execution time.sourceware.org · 4 Oct 2026
Outputs
It can print a flat profile and call graph, and provide annotated source output.sourceware.org · 4 Oct 2026
Build requirement
Programs must be compiled and linked with profiling enabled, typically using the compiler option -pg.sourceware.org · 4 Oct 2026
Data collection
The profiled program writes its data to gmon.out when it exits normally.sourceware.org · 4 Oct 2026
Combine profiles
gprof can sum statistics from multiple profile data files.sourceware.org · 4 Oct 2026
Sampling limits
Its time measurements do not account for time when a program is not running, such as time limited by I/O or swapping.sourceware.org · 4 Oct 2026
Instrumentation overhead
Profiling adds overhead to function calls, which the manual says can create artificial hot spots.sourceware.org · 4 Oct 2026
Line profiling
The -l line profiling feature works only with programs compiled by older GCC versions; newer GCC versions use gcov for line-by-line information.sourceware.org · 4 Oct 2026
Alternative in suite
The manual describes gprofng as a more modern profiler in Binutils that can read gmon files and provides more functionality.sourceware.org · 4 Oct 2026
Platforms
The Binutils project says its tools have been ported to most major Unix variants and Wintel systems.sourceware.org · 4 Oct 2026
Download
GNU Binutils releases are available from ftp.gnu.org and sourceware.org.sourceware.org · 4 Oct 2026
Support channels
The project lists Bugzilla for bug reports and mailing lists for bug reporting and discussion.sourceware.org · 4 Oct 2026
License
The gprof manual is distributed under the GNU Free Documentation License version 1.3.sourceware.org · 4 Oct 2026

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