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[mlau]

You don't need to delete the files, just set these 2 environment variables:

export DISABLE_VK_LAYER_VALVE_steam_fossilize_1=1
export

...

[mlau]

Oh, start Steam, and then delete the json files in ~/.local/share/vulkan/implicit_layer.d/ (Steam recreates those when you restart it).
Does x-plane...

[mlau]

That's just the vulkan loader informing you that it ignored this layer dll because it wasn't 64bit. Steam has both 32 and 64bit variants of these libs...

[mlau]

Yeah, it's an explicit fence and memory barrier, like MIPS's "sync" instruction....

[mlau]

AVX2 is a better cut-off point, as it implies a few other extensions as well: BMI1/2, FMA + F16C, MOVBE, ......

[mlau]

Well, this is where AMD needs to step up: find out which method works best on what core and which sizes, and wire that up. I read somewhere that on AMD...

[mlau]

The function mentioned in the first comment (__memmove_avx_unaligned_erms) is an intel-specific optimization, no wonder naive sse is faster on amd....

[mlau]

AMD seems to have been on good terms with SuSE in the past, why not write them a cheque and leave this to the experts?

[mlau]

At first glance this looks like a desperate attempt to keep DX12 relevant....

[mlau]

the first users are going to be malware and benchmarks