Need help tuning VR

[KY_Redleg]

All,
I have the following:

• Headset:  Quest2 connected via cable
• CPU:    11th Gen Intel(R) Core(TM) i5-11400F @ 2.60GHz
• GPU:    NVIDIA GeForce RTX 3060 12GB 
• Memory:  64.0 GB    Speed:  3000 MHz

I can't seem to get more than 30FPS single player and maybe 22 FPS multiplayer.  Am I expecting too much?

When running in VR, my CPU is not pegged and neither is my GPU.

I've followed a lot of the tweaks on the forum and reddit, so far, this the best I'm getting.  I attached my settings.

Any advice appreciated!
Redleg

[dutchili]

PD and MSAA have the most impact on your CPU.

The 90 hz refresh rate also requires a lot of frame generation.

I'd suggest to set 72hz (gives you 36 fps which appear to be fluid),

set PD to 1.0 and to compensate increase the Oculus render resolution.

Reduce Textures to medium.

you should be able to set visible range to high.

 

Let's us know if this helped.

[speed-of-heat]

Drop the refresh rate to 72hz and drop the in game Pixel Density to 1.0 ... as a start and  supersampling  and render resolution  each of these is multiplicative .... so set them to one and then start playing with 1 only 1 of them 

 

 

[KY_Redleg]

Thanks All!  That definitely helped.  I was able to get MSAA set to 2x and PD to 1.1 and still maintain 36FPS.

So what is the bottleneck on my system?  CPU or GPU?

Thanks!

[edmuss]

Both will bottleneck quite readily in DCS unfortunately.
If you put a bigger GPU in then it will be held back by the CPU, if you put a bigger CPU in then the GPU will be screaming along and the CPU will (possibly) be idling most of the time.

I would say you're probably pretty well balanced at the moment actually (for a relatively low spec DCS VR machine), ideally you want to be GPU bound as it's the end of the line before the headset and can't affect other components - if you're CPU bound then it can drag the GPU down with it.

Using a performance overlay check your CPU and GPU frametimes, nominally if CPU is higher than GPU then you're CPU bound and vice versa.

[KY_Redleg]

That's helpful!  Thank you!

[Tomcat388th]

Here are my settings but mycpu is a 5800x3d and my ram 3600 the rest is the same as yours and I do run airlink. I will only note what settings I have different from your screen shots
Quest2  90 Hz4128x2096
nvida cnt pnl
anisotropic filtering  Application-controled
antialaising mode  Enhance the application
antialaisning setting  2X
DSR factor  OFF
MFAA        OFF
Shader cache 10GB
Texture Filt Negative lod   Clamp
Texture Filt Quality
VR pre rendered frame 3
 Ocululus tool tray
Game settings tab
Default Super Samp  0
Adaptive gpu scaling on
Link Tab
Distortion curve high
Encode res 3960
Encode bit rate 0
Sharpening enabled
Dcs

Res of cockpit display 1024
Anisotropic filt 16x
SSA 1.5
Pixel Den  1.0
I'm also using the openxr toolkit using FSR upscaling with 90% size and 40% sharpness
These setting are pretty well giving me a solid 45fps whether I'm in SP or MP even on 4YA's Syria server. This is using the oculus runtime and  the force open xr shortcut for DCS.
J