Hello,

I have no idea how I should describe the problem because it consists of a few things.

Recently, I started doing some optimizations on VMs and I noticed while I can set things like mq, rss, vCPU topology, etc.

While Unraid allows to set up some things (like physical cores that a VM should use), I saw that if I select 4 cores, it will force the config to present it to the guest as 2 cores with 2 threads, no matter whether physically it's an HT pair or not.

All in all, I could accept the fact that I need to change some things in the config directly, but the issue is, whatever I do, if I enter/edit the VM in the GUI, even when I don't make any changes, it will overwrite the config.

Is there a way to get around that? Except for never going into VM's edit menu that is.

Or maybe there's a way to edit the xml via GUI so it'll save all the custom entries, it's just that I don't see it?

Edited May 29May 29 by Astaroth

Currently there is not a way to do it, We plan in a future release to change the model on how the xml is created, currently it rebuilds it each time.

You can out qemu commands in that will remain but not sure if that is possible with the options you need.

Tried that already. Setting smt doesn't seem to do anything, it's ignored entirely. And trying to set MQ and other stuff fails, as it looks like you cannot set parameters for something that's created upon VM start.

Would you maybe consider adding a slider button so one could switch between the interactive version and pure xml? Sure, there would be compromises, but assuming this would be aimed at people that really know what they're doing, this could work, and implementation seems to be a bit easier - you're just dumping all the responsibility on the user and simply ingesting the given config.