Watch a demo of PIX!
Watch Mike Burrows as he gives an impromptu demonstration to the Channel 9 team of the Performance Investigator for DirectX (PIX) at Meltdown 2005. This tool is used with Direct3D applications, allowing you gather and fully analyze Direct3D calls on a frame-by-frame basis.
http://channel9.msdn.com/Showpost.aspx?postid=109396