Overhead Profiler

This tool allows you to exactly profile any section of your code and produce an output similar to GProf. This tool was originally designed to profile the overhead of runtime systems that have very short functions that are frequently missed by sampling based profilers such as GProf. This profiler will report the exact amount of time spent in each identified block of code. It will also only profile the pieces of code that you care about.


  • GProf-like output
  • Supports profiling of multiple threads (via pthread)
  • Precise profiling (does not rely on sampling)
  • Allows the specification of blocks of interest to profile
  • Accounts for its own overhead thereby giving accurate measurements

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