The Current RADV+ACO Mesa Driver Performance For February 2020
First up was Dota 2 which actually pointed towards regressed performance between Mesa 19.2.8 and Mesa 20.1-devel. In particular, the Vega and Navi graphics cards saw a sizable hit to their performance for this mature Vulkan powered game. Using ACO wasn't helping out in these configurations.
With the F1 2017 racing game as the last of the series with a native Vulkan port, there were only minor changes to find when enabling ACO for Navi.
Hitman 2 is running on Linux under Steam Play and thanks to DXVK rendered with Vulkan. From Mesa 19.2 to 20.1-devel there wasn't much in the way of performance changes but enabling ACO did help boost the frame-rates.