There's new improvements within the wonderful open-source APITrace utility for better profiling OpenGL games/applications.
Recently added by a university student working at VMware is APITrace support for GPU profiling of OpenGL traces, visualizations for captured GPU/CPU profiling results, a histogram showing GPUCPU durations for each call, and much more.
The improvements (with screenshots) are shown in a new post on Jose Fonseca's blog
. For those not familiar with APITrace, visit its GitHub page