Radeon + AMDGPU Performance On Linux 4.6

Radeon + AMDGPU Performance On Linux 4.6: For those curious whether the Linux 4.6 kernel is bringing any noticeable performance improvements to the AMDGPU and Radeon DRM drivers over Linux 4.5, here are some benchmarks in conjunction with using Mesa 11.3-devel built against LLVM 3.8.