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this post was submitted on 15 Feb 2024
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I wonder if there is something going on with scheduling waits that is impacting the audio process. I would first try upping the CPU units in Processors->Advanced settings for the VM, bump it to something like 200. Otherwise, if you over subscribing your CPU cores, try temporarily dropping the number of cores subbed out to your VMs to match the physical host to see if it helps, since that could help resolve scheduling issues as well.
This was the issue! I enabled SMT and set my CPU cores on the VM from 4 to 8 cores and it fixed it. Thank you so much for the advice!
Awesome, glad that helped and thanks for the update!
I disabled SMT to avoid meltdown attacks, so I added 'nosmt' in /etc/default/grub on Proxmox. Currently I'm using a Xeon E3 1275 V2 which has 4 cores, but since nosmt disables hyperthreading, I'm not using 8 cores. I do think you're right though, this problem hadn't appeared before and I believe only started to happen when I started messing around with the amount of cores the CPU has. I'll test it out and keep you updated! Thanks for the advice!