AMDGPU SI Machine Schedule For LLVM Showing Much Promise

A yet-to-be-mainlined Southern Islands Machine Scheduler for the AMDGPU LLVM back-end is showing much promise for being able to boost the open-source RadeonSI Gallium3D driver performance.

Open-source developer Axel Davy had hacked up this SI Machine Scheduler and currently is hosting it via his LLVM GitHub repository. Phoronix reader "Darkbasic" who recently shared with us his RadeonSI benchmark results compared to some of our NVIDIA/Catalyst numbers has since tested this machine scheduler.

His results are very impressive with all of this Git code plus using the machine scheduler. "I decided to test Axel Davy’s si scheduler and run the very same OpenGL4+ tests with both radeonsi+si scheduler and Catalyst. The si scheduler is such a huge performance boost! Not only it is faster, but now radeonsi is faster than Catalyst in *all* tests, sometimes by a wide margin!"

The raw OpenBenchmarking.org result file can be viewed here.