vGPU performance issues?

scornelissen

Active Member
Jan 8, 2018
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1
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Hello,

I'm running a Proxmox cluster where one of our nodes, with Proxmox 7.1-10, has a Nvidia Quadro RTX 8000 installed. We would like to use this GPU as a virtual GPU so that we can use the vGPU's in multiple virtual machines. I have installed the Nvidia drivers on the Proxmox host (NVIDIA-Linux-x86_64-510.108.03-vgpu-kvm). The guest is running Ubuntu 22.06. I have installed the Nvidia gridd driver, I also have installed a Nvidia license on our guests and nvidia-smi shows that is is used by the applications. Everything is running as expected, however the performance of the graphics is bad (around 10 FPS). When we set the GPU to attach directly to the VM (not as vGPU) the graphical performance is way better (around 60 FPS). Is this something that can be expected? Has someone else same behavior? Or is this isn't expected and should the performance of the graphics been better?
 
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