GNU gprof

The GNU Profiler

• Why Profile
• Compiling a Program for Profiling
• Executing the Program to Generate Profile Data
• gprof Command Summary
• How to Understand the Flat Profile
• How to Read the Call Graph
  • The Primary Line
  • Lines for a Function's Callers
  • Lines for a Function's Subroutines
  • How Mutually Recursive Functions Are Described
• Implementation of Profiling
• Statistical Inaccuracy of gprof Output
• Estimating children Times Uses an Assumption
• Incompatibilities with Unix gprof