For omniverse usd composer or omniverse code, just having them open seems to drain a lot of my computer’s resources even when I’m not doing anything. It seems to use a lot of CPU/GPU, and the fans are always on full blast when I open those omniverse apps. This happens even when I have an empty scene.
Is there an explanation of why this happens?
And is there a way to change the settings so that the high usage only occurs when I press the play button?
If you’re not using at the moment then , you can minimize them. When they are minimize they are put into real idle state. At least this is the method I know of currently that works, perhaps there is a setting for this.
Yes correct. There is a setting specifically for this that reduces GPU load when the app is minimized. Also in realtime make sure you have ECO mode ON. It’s the first rtx realtime setting in Render Settings. It should be on by default and set to 100 passes. This tells the app to stop rendering in realtime after 100 GPU cycles. You can lower it more if you want. Same for path tracing. If you want to reduce the GPU load, set the samples low to say “50” and it will really help.
In general this is a “real time” app like Unreal and a heavy GPU game. If it’s open even with an empty scene it’s cranking really hard. Either close or minimize when not using.
Thank you both for your responses.
I did find that minimizing the window brings the GPU utilization down.
I still quite don’t understand the role of the setting in ECO mode. Is that supposed to come into effect even when the window is not minimized? I tried setting that number and didn’t change the scene for ~10 seconds at 24 FPS and it didn’t affect the GPU utilization at all.
Eco mode is just for realtime mode and it should kick in way before 10 seconds but if it’s only 24 fps it may take longer.
1 Like
I think I am correctly set to realtime mode and turned on Eco mode. Please correct me if I’m wrong.
Using these settings, I checked that there are multiple different scenarios for GPU utilization (image below). Is it possible to change the settings (either manuallly or trigger by Eco mode) so that GPU utilization is all the way down even when the app isn’t fully minimized? Sometimes I just need to navigate the omniverse app UI, but the app is unnecessarily using a lot of compute resources.
#1: Omniverse app is opened
#2: App is not actively minimized, but I click on a different (non-omniverse) app on my computer
#3: I click on the omniverse app again
#4: I change my scene slightly in the viewport, and leave it to trigger Eco mode
#5: I minimize the omniverse app
Yes that seems correct. Eco mode does not reduce the GPU usage to zero. Just reduced down from 100%. It returns to 30%. That seems right. A lot of that last 30% is the realtime Gpu denoiser. If you disable that it should go down even further. If you hit F8, you can bring up the Profiler. Switch to the gpu mode and you can see where that 30% is going.
This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.