With Ubuntu 17.04 having switched to X.Org Server 1.19 at the last minute, I ran some classic 2D tests from the Zesty Zapus to see how the 2D X11 performance has been impacted thanks to the GLAMOR optimizations that took place for the xorg-server 1.19 cycle…

Source: Phoronix – GLAMOR 2D Tests On Ubuntu 17.04 With X.Org Server 1.19