I’m running a fully virtualised environment with 1 XenServer VM behind 1 VyOS gateway.
All this is running on Epyc 64c/512G RAM/25Gb Net brand new hypervisor.
Curious behaviour : when running a speedtest on the VM, the IRQ CPU goes to 100% on the VyOS router ONLY during the download phase, the upload does not cause any IRQ.
VyOS VM has 2 vCPUs + 2 GB mem.
Where does this come from? I can’t explain the up/down difference.