Just a question: how to deal with class linkage

[salacryl]

Hi guys,

I noticed huge FPS drops on DCS with DXVK. The same map on windows gives me 60 FPS, whereas under Linux / dxvk 9 FPS. With 100% GPU usage. The log is flooded with class linkage isn't supported, so my guess is that those shaders cause the FPS. Is there any way to get around that? Since dxvk doesn't support class linkage?

Software information

DCS World (latest release)

System information

• GPU: NVIDIA AD104 [GeForce RTX 4070 SUPER]
• Driver: nvidia v: 565.57.01
• Wine version: Proton-Experimental
• DXVK version: 2.4.1

Apitrace file(s)

Apitrace didn'work. No trace file was produced

Log files

DCS_dxgi.log
DCS_d3d11.log
steam-14891446377488842752.log

[doitsujin]

What is DCS?

I'm not aware of any game requiring this feature, and if this one did then it would most likely not work at all. Some games pass an empty class linkage thing around which explains the error messages, but probably unrelated to your issue.

[salacryl]

Digital Combat Simulator.

[Blisto91]

Which map do you have issues with

Edit: also share the settings you use

[salacryl]

Though the inferno (Caucasus , Marianas, Sinai to be specific).
Settings:
["graphics"] = {
["AA"] = "OFF",
["BlurFlatShadows"] = 0,
["ColorGradingLUT"] = 0,
["DLSS_PerfQuality"] = 3,
["DOF"] = 0,
["LODmult"] = 1,
["LensEffects"] = 0,
["MSAA"] = 1,
["SSAO"] = 0,
["SSLR"] = 0,
["SSS"] = 0,
["Scaling"] = 0.66,
["ScreenshotExt"] = "jpg",
["Sharpening"] = 0.6,
["Upscaling"] = "OFF",
["anisotropy"] = 1,
["aspect"] = 2.3888888888889,
["box_mouse_cursor"] = false,
["canopyReflections"] = 1,
["chimneySmokeDensity"] = 0,
["civTraffic"] = "low",
["clouds"] = 0,
["clutterMaxDistance"] = 750,
["cockpitGI"] = 0,
["defaultFOV"] = 78,
["effects"] = 3,
["flatTerrainShadows"] = 1,
["forestDetailsFactor"] = 1,
["forestDistanceFactor"] = 0.5,
["fullScreen"] = false,
["heatBlr"] = 0,
["height"] = 1440,
["lights"] = 2,
["maxFPS"] = 180,
["messagesFontScale"] = 1,
["motionBlur"] = 0,
["motionBlurAmount"] = 1,
["multiMonitorSetup"] = "1camera",
["outputGamma"] = 2.2,
["preloadRadius"] = 100000,
["rainDroplets"] = 0,
["scaleGui"] = 1,
["sceneryDetailsFactor"] = 1,
["secondaryShadows"] = 0,
["shadowTree"] = false,
["shadows"] = 3,
["sync"] = false,
["terrainTextures"] = "min",
["textures"] = 1,
["useDeferredShading"] = 1,
["visibRange"] = "Medium",
["water"] = 1,
["width"] = 3440,

[salacryl]

Is there a way to get data to see why it takes so much GPU (100% on linux and 66% on windows)?
Can I somehow debug things?

[K0bin]

Unless you're using an FPS limiter or VSync, 100% GPU - utilization is the best case scenario.

[salacryl]

Unless your frame generation takes up to 170ms