I can reproduce this bug in Xorg sessions with Intel graphics. My fullscreen benchmark results are about a quarter of what they should be when mutter/gnome-shell is running. 4x performance is achieved by running on a bare Xorg server without mutter/gnome-shell.
I can reproduce this bug in Xorg sessions with Intel graphics. My fullscreen benchmark results are about a quarter of what they should be when mutter/gnome-shell is running. 4x performance is achieved by running on a bare Xorg server without mutter/gnome-shell.