DXVK Now Has An On-Disk Shader Cache

[phoronix]

Phoronix: DXVK Now Has An On-Disk Shader Cache

DXVK, the exciting project implementing the Direct3D 11 API over Vulkan for Wine gamers, now has an on-disk shader cache...

http://www.phoronix.com/scan.php?page=news_item&px=DXVK-Shader-Cache

[Leopard]

Implements on-disk pipeline caching. Never compiled or tested it. People on discord say it works.

You said Discord?!?!?

Done , merged.

[VikingGe]

Leopard I was communicating with the one who made the patch on said Discord, tested it, did some work on it myself and then merged it. Slight difference, but only slight

Anyway, this really only helps in case your driver doesn't store its own on-disk pipeline cache already, like RADV does, but it's a good thing nonetheless.

[Leopard]

Leopard I was communicating with the one who made the patch on said Discord, tested it, did some work on it myself and then merged it. Slight difference, but only slight

Anyway, this really only helps in case your driver doesn't store its own on-disk pipeline cache already, like RADV does, but it's a good thing nonetheless.

Of course , i was joking. I saw your changes on that.

Hope this can eliminate Nvidia stuttering.

[TemplarGR]

Leopard I was communicating with the one who made the patch on said Discord, tested it, did some work on it myself and then merged it. Slight difference, but only slight

Anyway, this really only helps in case your driver doesn't store its own on-disk pipeline cache already, like RADV does, but it's a good thing nonetheless.

Doesn't it help with storing the translated shaders? RADV only stores vulkan shaders, what about HLSL to Vulkan stuff? I think it helps...

[VikingGe]

TemplarGR Here's the thing: It doesn't store the translated DXBC shaders (not HLSL, that's just the source language). Won't help reduce stutter in most games because in D3D11, shaders are typically compiled asynchronously and the DXBC->SPIR-V translation is quite fast already.

[shmerl]

It's fast, but wouldn't it depend on their number? If you are swamped with a huge amount, it will cause a stutter.

[VikingGe]

shmerl only if the game starts compiling shaders on the fly and actively waits for it to finish. Most games don't do that.

Another issue is that the SPIR-V shaders are huge - my Vulkan pipeline cache for Witcher 3 has 3.5MB, the SPIR-V shaders for that game can easily exceed 100MB. Caching that would be unreasonable, and compressing it wouldn't really offer any benefits over doing the translation on the fly.

[shmerl]

Another issue is that the SPIR-V shaders are huge - my Vulkan pipeline cache for Witcher 3 has 3.5MB, the SPIR-V shaders for that game can easily exceed 100MB. Caching that would be unreasonable, and compressing it wouldn't really offer any benefits over doing the translation on the fly.

But radv caches it somewhere? I only found $HOME/.cache/radv_builtin_shaders which isn't that big.

[VikingGe]

RADV doesn't cache SPIR-V shaders (why would it, the application sends them to the driver anyway), it caches compiled Vulkan pipelines (which is exactly what DXVK does).