[ahartmetz]

The extra frame that I mean is: console renders, vsync, compositor grabs it and renders, vsync. That is what happens on X11 with compositing AFAIK. Only one frame time / one vsync is really required before you consider specifics of the software involved. I've read somewhere that Windows also has an extra frame of latency for similar reasons as X11.

[namibj]

The answer is triple buffering and not using a compositor/ using triple buffering and a compositor that plays nice with it.