Radeon Vulkan Driver Gets A Significant Performance Optimization For Pre-4.20 Kernels

[phoronix]

Phoronix: Radeon Vulkan Driver Gets A Significant Performance Optimization For Pre-4.20 Kernels

Fresh out of our Radeon Vulkan Driver Benchmarks: AMDVLK 2018.4.2 vs. AMDGPU-PRO 18.40 vs. Mesa 18.2/19.0, RADV driver co-founder Bas Nieuwenhuizen has posted a patch to help further the performance of the Mesa RADV driver...

http://www.phoronix.com/scan.php?page=news_item&px=RADV-Pre-420-Performance

[tildearrow]

Typo:

The RADV change is algining large buffers to the fragment size.

[Brisse]

Good stuff. 15% performance increase on an already fairly well performing driver is nothing to sneeze at. It will be interesting to see if it affects more than just Talos Principle.

[treba]

Wow, that should close the gap to AMDVLK in the cases where it was still slower

[schmidtbag]

Good stuff. 15% performance increase on an already fairly well performing driver is nothing to sneeze at. It will be interesting to see if it affects more than just Talos Principle.

I agree. This could be enough of a difference to consistently outperform the Windows drivers, and for certain GPUs to consistently outperform whichever Nvidia GPU they're normally directly competing against (for example, the 580 vs 1060, or Vega 64 vs 1080).

[AsuMagic]

According to DXVK's dev linux 4.20 doesn't give him a performance improvement, so unfortunately this change might not affect DXVK gaming.

[bpetty]

Right when I was kind of thinking RADV was getting left behind... boom, patch. That is probably one of the best arguments for RADV, their ability move so rapidly. That said, I would love to see Windows vulkan performance... I would image that is the one to beat.

[kiffmet]

15% in certain workloads for changing 2 LOC. Not bad at all. I wonder if there is more headroom for such simple, yet effective optimizations.

[dungeon]

Right when I was kind of thinking RADV was getting left behind... boom, patch. That is probably one of the best arguments for RADV, their ability move so rapidly. That said, I would love to see Windows vulkan performance... I would image that is the one to beat.

It is more proper to say, how with open source news moves more rapidly

According to DXVK's dev linux 4.20 doesn't give him a performance improvement, so unfortunately this change might not affect DXVK gaming.

That is why it is usual to use "up to" safeguard wording So in at least in one case we spot 15%, but YMMV

[dungeon]

Oh No! More Lemmings... i mean unapproved