https://bugs.winehq.org/show_bug.cgi?id=42592
Kai Krakow kai@kaishome.de changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |kai@kaishome.de
--- Comment #20 from Kai Krakow kai@kaishome.de --- I can confirm this... Running nvidia-smi and htop in parallel on a second monitor, I can see the GPU hovering around at about 45-65% while some CPU cores are loaded at 80-90%. I guess this may have something to do with how Wine currently implements CUDA and PhysX.
When I use Aard to trigger physical object movement, the game really slows down (it doesn't look like dropping FPS, it looks like everything goes slow motion until objects stop moving around).
Using GTX 1050 4GB with i7-3770K @4.2GHz turbo.
However, within Novigrad, I was able (until some patch or configuration change) to trigger the game into using 100% GPU all the time, with FPS going down to 1 FPS or below. This is triggered in some areas around Triss' house, and also often while talking to people. The game has to be completely restarted to get rid of this slowness. I think this happened when playing around with the STAGING_RT_PRIORITY_BASE setting. Using STAGING_RT_PRIORITY_SERVER now, and it hasn't happened again. The game seems a little bit overall smoother now but still low FPS at only 45-65% GPU load.
Using wine-staging 2.17. Different graphics settings seem to only have a minimal impact on FPS and GPU load, except for during rain and except for some lighting effects which makes FPS really go down and making the game run more slow-motion like. In the latter situations graphics settings seem to have a noticeable (but still small) impact.