Radeon + AMDGPU Performance On Linux 4.6
No changes out of Linux 4.6 with BioShock Infinite on the tested hardware... Immediately though we see the Radeon R9 285 (Tonga) graphics card is back to running abnormally slow on this configuration.
DiRT Showdown didn't show any performance improvements while the R9 285 continued to run much slower than the fellow Radeon GPUs.
It's looking like no Linux 4.6 performance improvements for Radeon/AMDGPU in our common graphics workloads.