this post was submitted on 26 Oct 2023
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Is it linux is faster, or is it dxvk/vulkan is faster?
Could be both. Who knows. For high performance computing Linux is the de facto standard because it has better performances than windows, and Linux distros are usually better, stabler OSes overall when one needs raw performances. In this case, who knows, someone should investigate further
Hey now! Starships aren't nearly as complicated!
Tbf, on Linux performances for hpc are better even on standard desktop distros, no need to clean it up. It manages resources and jobs much better. For performances that is the critical part, once the code is optimized.
Combination, and it depends on the game. Dxvk will add latency, but depending on the renderer and how the game runs the reduction in CPU overhead by using dxvk instead of native can provide performance gains, especially on certain CPU's.
On games with a native vulkan renderer, Linux will most often just be faster since you have less system overhead burden. This has been fascinating to see though.
The results are mixed right now, and it's going to be real hard to nail down predictability as far as performance goes. More often than not, so long as DRM isn't involved, games run really well on day one. Older games are starting to see a performance uplift and reliability improvements through proton/dxvk/vkd3d.
I'm very happy though that what we're talking about is comparable performance metrics. We use to be content if the shit ran at all.
One comment to add to your post, Linux is better on performances not just because of the less overhead, but because manages resources much effectively. You could have a bloated linux, it still would perform better because resources are properly managed
That's an absolutely correct and very relevant point. On any equivalent computational loads, Linux comes out ontop. Better scheduler, better I/O, better stack.
Yes but it's very much an afterthought. Their notion of using containers and the Job Objects is largely a bolted on approach. If you look into the Job Objects, that would be what I can think of as the closest equivalent.
Proton (DXVK/VKD3D) is faster. The lightness of the system also helps.
I think it's mostly DXVK/Vulkan
cpu bound tasks on linux are usually completed much faster due to just how ridiculously overoptimised linux cpu schedulers are
and dxvk can be faster than dx11 and older, but that's a pretty unusual case