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OpenGL & Vulkan

jseb
Journeyman III

In Game's Gpu lightmap compute becoming very slow with recent Amd Gpu (6800XT / 5700xt)

Hello,

On two (D3D11) games we released several years before some recent AMD Gpus have really poor performance with our in-game lightmap compute, the rest of the game looks ok.

According to players it looks like the gpu is almost idle (3%).

Could you help us finding what's going on ?

I don't know yet their driver versions but I assume they're recent.

Regards

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jseb
Journeyman III

Re: In Game's Gpu lightmap compute becoming very slow with recent Amd Gpu (6800XT / 5700xt)

The player with a "MSI Radeon 6800XT Gaming X Trio" is using "whql 21.4.1" drivers.
While the one with a 5700xt is using "v20.9.2" drivers.

For theses players, the in-game "lightmap compute" feature become almost unusable since compute takes ridiculously long time: 30mn to an hour instead of around 2-3 minutes.

We did not patch the 2 games for many years, and didn't notice that issue since now, so I assume something is going wrong on driver side.

Regards

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dipak
Staff
Staff

Re: In Game's Gpu lightmap compute becoming very slow with recent Amd Gpu (6800XT / 5700xt)

Hi @jseb ,

Thank you for reporting it. I've reported the above issue to the concerned team and they are looking into this.

 

Thanks.

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