latency

109d

I built a latency meter with an Arduino and a photo transistor to answer one question: Is click-to-photon latency higher on Wayland than on X11?

And the answer is: Yes, actually.

⏱️ 42 ms on X11, compositing off
⏱️ 56 ms on X11, compositing on
⏱️ 64 ms on Wayland
⏱️ 71 ms on Windows 10

Tested with Plasma 6.3.4 and Firefox 137. I will improve my methods and confirm these numbers. See replies for details.

Edited 109d ago