A Phoronix reader commented, "I read through the changelog and saw that there were several amdgpu patches. I just built this RC, rebooted, and ran some 3d benchmarks an the result is: a) double or quadruple the framerates that I got with RC1, and b) no more overheating. I have the same model R9 Fury that Michael excluded from the last round of benchmarks due to performance/stability problems."
Needless to say, after I get my coffee this morning, benchmarking 4.5-rc2 on the R9 Fury (and might as well the R9 285 again too) is first on my agenda to look for any performance improvements compared to last week's 4.5-rc1 code. The AMDGPU changes in 4.5-rc2 include:
drm/amdgpu: fix tonga smu resumeStay tuned for my AMDGPU 4.5-rc2 test results in a few hours.
drm/amdgpu: Add some tweaks to gfx 8 soft reset
drm/amdgpu: add a message to indicate when powerplay is enabled (v2)
drm/amdgpu: don't init fbdev if we don't have any connectors
drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
drm/amdgpu: fix next_rptr handling for debugfs
drm/amd/amdgpu: Improve amdgpu_dpm* macros to avoid unexpected result (v2)
drm/amdgpu: Allow the driver to load if amdgpu.powerplay=1 on asics without powerplay support
drm/amdgpu: Use drm_calloc_large for VM page_tables array
drm/amdgpu: only move pt bos in LRU list on success