Benchmarking tool for Linux OpenGL games. Spews frame information, logs frametimes.
You can read how to use voglperf at https://github.com/ValveSoftware/voglperf and e.g. http://www.opengamebenchmarks.org/about/ (or just search for other guides).
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/kparal/voglperf/