Comment by simoncion
2 hours ago
> ...or is that a class of performance we just have to sacrifice for the frame-perfect rendering of wayland?
I think I know what "frame perfect" means, and I'm pretty sure that you've been able to get that for ages on X11... at least with AMD/ATi hardware. Enable (or have your distro enable) the TearFree option, and there you go.
I read somewhere that TearFree is triple buffering, so -if true- it's my (perhaps mistaken) understanding that this adds a frame of latency.
> I read somewhere that TearFree is triple buffering, so -if true- it's my (perhaps mistaken) understanding that this adds a frame of latency.
True triple buffering doesn't add one frame of latency, but since it enforces only whole frames be sent to the display instead of tearing, it can cause partial frames of latency. (It's hard to come up with a well-defined measure of frame latency when tearing is allowed.)
But there have been many systems that abused the term "triple buffering" to refer to a three-frame queue, which always does add unnecessary latency, making it almost always the wrong choice for interactive systems.