Will Linux 4.5 Bring Any Performance Boost For Pre-AMDGPU Radeon?
I just ran some tests on a Radeon R9 290 and R7 370 for now with the Radeon DRM driver from Linux 4.4 Git and then my latest Radeon DRM-Next kernel spin for the code that's going to land during the Linux 4.5 kernel merge window. Mesa 11.2-devel + LLVM 3.8 SVN was maintained during testing as were other system settings.
For the most part, no big performance changes:
But BioShock Infinite and Xonotic looks like they were trying to push harder on the newer kernel graphics driver code:
All of these quick Linux 4.4 vs. 4.5 Radeon DRM reference tests can be found via this OpenBenchmarking.org result file.