I’m working with the vulkan-api and noticed something crazy. Vulkan makes my dwn.exe use more cpu as any other programm.
If i execute the QueuePresentKHR function to submit the presentinfo this behaviour occours. It takes then sometimes about 8% cpu power.
I don’t know why that is happening…
Hopefully someone noticed that too or knows a solution to that problem.
Maybe that is also normal for vulkan. I don’t know.
Yes, that is what I noticed too.
But I don’t know why that dwn.exe uses cpu at all.
For example: DirectX doesn’t seem to use resources trough the dwn.exe.
Why is that additional cpu consumtion necessary?
Are you sure that DirextX apps don’t put cpu load on DWN at all? I can’t imagine that they can bypass the DWM, but then again MS might be doing something special for their APIs. But as far as CPU load is concerned I can’t see high loads on DWM. Rendering at 4,000+ fps on my rather slow AMD 6 Core CPU has dwm at around 3~4%, which I’d say is fine.