Layer Profiler - 6

The Layer Profiler is a standalone or pure-Python importable module to help you profile your programs interactively or offline. It is a single file which has no dependencies beyond PyGTK+. It hooks into your PyGTK, pyglet, or Pygame application with minimum fuss. The only dependencies are on Python 2.4 and PyGTK 2.12. It is licensed under the GNU LGPL

Profiles from two different runs can be compared and the differences between them highlighted.