x11perf: x11perf (X11 server performance test program) x11perf: x11perf: x11perf is part of X11. x11perf: x11perf: For more information about the X.Org Foundation (the providers of the x11perf: X.Org implementation of the X Window System), see their website: x11perf: x11perf: http://www.x.org x11perf: x11perf: x11perf: