I built a device to measure end-to-end input latency, then used it to find out what actually moves the needle.

Really cool research. Overall, X11 still wins compared to Wayland(kwin) but only by 0.14 - 0.22 ms. The really bad performance hit is from XWayland which added 3.13 ms.

  • fruitcantfly@programming.dev
    1·
    40 minutes ago

    I’m well aware how short 100ms really is and it is very obvious if your inputs are off by 100ms or more; rhythm games are rarely that strict, but I’ve also played games where some inputs had to be timed to within 1/60th of a second (~16.7ms)