Windows 10 Very Slow, but not Laggy on the UI via NoVNC or RDP

[3degreesright]

Hello, I am experiencing a very slow Windows 10 VM on Proxmox 8.1. Proxmox 8.2 would NOT install on my Dell R610 dues to some undocumented bug.

• Dell R610, 24 cores, 96 GB RAM
• Proxmox 8.1

Click on task manger or file Windows Explorer, it pops up 10 seconds later, very unresponsive, but not graphically laggy.

I am using nested virtualization, as this is a requirement. I am also using the following settings:

• VM CPU set to "Host"
• benchmarks look good on CPU = 10-25%, RAM = 4/16 GB
• No passthrough GPU, but graphics are not my concern here
• local Gbit network, not an RDP or bandwidth issue
• SCSI Controller, but the disk is on (ide0)
  • When i try a SCSI disk for the Windows host I'm not sure which driver to load, so I left default ied0
• VirtIO = SCSI Controller, Network card,
• virtio-win-0.1.262 mounted and installed

Any ideas are greatly appreciated!!
Can you point me to an optimal setup?
Thanks!!

 

[3degreesright]

OK Folks - I have a solution to my Windows VM slowness:

• Download the VirtIO Drivers ISO from Fedora
  • virtio-win.iso
    • Mount this ISO when installing your VM
  • Install hard drive as VirtIO
    • I did not have luck with Win10 and the SCSI drivers
• Use virtIO for disk and network
  • You will not have network until you install the EXE from fedora into the OS
    • After you run the "virtio-win-gt-x64.exe" you will see the virtIO network adapter connect
• Use "Host" for CPU type
• Ensure "KVM hardware virtualization" is enabled in the VM options

Nested virtualization will slow down the VM, but it's not as bad as without these settings.

I hope this helps someone!
-3degreesright

 

[_gabriel]

I am using nested virtualization, as this is a requirement

Where is the nested virtualization ?

 

[3degreesright]

Where is the nested virtualization ?

On my Windows 10 Pro VM that is running WSL 2 and Docker Desktop. It's a little slow, I am considering moving to a Dell R720 with a newer CPU architecture to see if this is better.