The GNOME 3 Wayland session is really impressive, very smooth tear-free experience with much less lag than X11.please show me how to introduce that "lag" visibly so i can reproduce this.
Start GNOME 3 @ X (with Mutter as the hardware accelerated compositing window manager incl. Vsync). Now open a window and place the mouse cursor on the window titlebar and click and hold the left mouse button and move the mouse around to move the window around. As you can see, the mouse cursor is faster than the window movement, i.e. there's some kind of input/rendering/drawing lag.
This will also be true and in many cases even worse than GNOME 3 with other X shells using compositing window managers. Take XFCE4 + Compton for example. Running XFCE4 with Compton results in proper VSync (unlike xfwm4). However, there's some huge input lag. In this case, the window movement is even much slower than the mouse cursor (compared to GNOME 3 @ X). So XFCE4 + Compton is an even better example.
Start GNOME 3 @ Wayland and do the same (i.e. move a window around). You will see that the mouse cursor and window movement is in perfect sync and it feels much less laggy and rock solid.
The same is also true for running Wayland @ Weston.
With Wayland there's no tearing and not such a lag as mentioned above. With Wayland it feels as good as with Windows Vista/7/8/8.1/10 @ DWM.
If you want to try out the GNOME 3 @ Wayland session, you can boot up the latest Fedora Rawhide live session:https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Workstation/x86_64/iso/
If you want to try out Wayland @ Weston, you can boot up the latest RebeccaBlackOS live session:https://sourceforge.net/projects/rebeccablackos/
Let's hope that will stop you from posting pointless comments such as those:
what's the point of wayland?
it's a usual tactic i observe in open source projects: tell all slightly-related projects that the other competing projects are better. they don't look at why or care about any technicalities. they just think they do it for the greater good, that people will get back to work and then make more useful software (i.e. support their crappy feature request), cause all that was needed for greatness is their friendly encouragement.