Linux latency measurements and compositor tuning [KWin Wayland]

Joe_Cool 20 points 2 comments June 10, 2026
farnoy.dev · View on Hacker News

Discussion Highlights (1 comments)

Joe_Cool

Interesting methodology: "To investigate, I used a small Teensy microcontroller to measure click-to-photon latency. It acts as a USB HID mouse and is paired with a light sensor pressed against the screen. I flashed it with an existing Open Source LDAT sketch, with slight modifications. The resulting setup can log hundreds of samples to a CSV file, unattended."

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