Overclocking The Radeon RX 580 Under Linux

But with the memory overclocking on AMDGPU with the Linux 4.11 kernel was less off. When trying to overclock the memory frequency by any amount, I would end up getting lower performance. Here's a quick look when trying a 5% GPU overclock without memory adjustments, 5% OC on the GPU core and 5% on the memory, 6% overclock on the GPU, and then a 6% overclock on the GPU with a 10% overclock on the memory:

I didn't encounter any instabilities or rendering artifacts, but the performance benchmarks were running much slower. When checking out dmesg after writing to pp_mclk_od, there would be a PowerPlay message about "failed to send message 18a ret is 255" messages. I haven't tried out AMDGPU overclocking with any other cards recently so off hand do not know if this is a RX 580 specific problem or affecting all PowerPlay memory clock OverDrive adjustments with Linux 4.11.