Shiny is a lightning fast, fully documented & by-far-easiest-to-use C/C++/Lua profiler with no extensive surgery. Results are smoothed & shown in run-time as a call-tree or sorted-by-time. Output also renderable as graphs in Ogre3D or your custom engine
Investigo is a toolkit for DirectX9 performance analysis and debugging.
For any DirectX9 application: view live performance graphs via the embedded HTTP server and capture performance metrics for offline analysis.
Investigo is released under an MIT style licence.
The first binary release is now up.
An article on Investigo can be found on Code Project:
http://www.codeproject.com/Articles/448756/Introducing-Investigo-Using-a-Proxy-DLL-and-embedd
If you want to work on...
The Artemus Project aims to create tools for the analysis of C# and PowerPC assembly code on the Xbox 360 using XNA Game Studio. These tools will allow XNA Game Studio developers to identify sections of code that may negatively impact performance.