[Wayland-bugs] [Bug 106736] With Vsync disabled, Weston almost halves *visible* frame update rate, compared to X desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106736

--- Comment #18 from Daniel Stone <daniel at fooishbar.org> ---
Just because VRR allows you to place content at quite arbitrary times, doesn't
mean it's a great idea. Animations want an extremely stable and consistent
frame rate in order to present smooth motion: if that framerate can be sped up
without burning your CPU/GPU/lap then that's great, but presenting ASAP gives
worse results than a fixed cycle.

Even games don't want to 'present ASAP' with no idea of when ASAP actually is.
They need to build their scene with a particular time in mind, and then show it
to the user as close to that time as possible. They are a little less sensitive
to the need for a constant refresh duration than animations are, but they still
need to know the exact frame display time in order to not look horribly jumpy.

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