rtprof is a profiling tool that uses GCC's function instrumentation mechanism to provide an OpenGL-based call graph visualization representing the process being profiled. Visualizations are displayed in real-time in parallel with the running process and can be interactively examined using mouse and keyboard control.
Tremulous is a computer game that blends a team-based first-person shooter with elements of realtime strategy. The objective of the game is to annihilate the opposing team. This is achieved by eliminating the opposing players and removing their ability to respawn by destroying their spawn structures.
I thought this reply was a bit strong considering that SVN promotes itself as a CVS replacement, but there you go.