Bug 110995

Summary: performance regression in Heroes of the Storm with Mesa 19.1.1 & Polaris
Product: Mesa Reporter: tempel.julian
Component: Drivers/Vulkan/radeonAssignee: mesa-dev
Status: NEW --- QA Contact: mesa-dev
Severity: normal    
Priority: medium    
Version: 19.1   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
i915 platform: i915 features:

Description tempel.julian 2019-06-25 14:37:41 UTC
I lose at least 10 fps with 19.1.1 vs. 19.0 on RX 580.

19.1 (at least 168 fps):

19.1.1 (not more than 158fps):

Performance regressions first occured in mesa-git around a week ago which is why I switched to stable 19.0. mesa-git was even worse though with ~150fps. Probably related to work regarding DCC?

linux 5.1
both LLVM 8 & 9
Comment 1 Samuel Pitoiset 2019-06-25 14:45:57 UTC
Can you try to revert 410759091173fa61436ba46baeb20a79d5767849 ?

Btw, 158 vs 168 is really a small diff.
Comment 2 tempel.julian 2019-06-25 16:17:00 UTC
It's an additional loss on top of DXVK vs. native D3D11 performance, so it sums up to something worse. :)

I could bisect it to this commit:
With it reverted, performance in mesa-master is normal.
Comment 3 tempel.julian 2019-07-03 12:04:42 UTC
Is there a chance to make CTS dEQP-VK.pipeline.depth_range_unrestricted.* pass without causing the performance regression?

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