Yeah.

At maximum a bug/issue tracker is needed.

"server"

Oh, I'm familiar with ip command. I've just completely missed ss.

Wait? ss? why haven't I heard of this?

Good bot.

foot

Foot works fine here also.

virt-manager uses QEMU/KVM by default. Some distros do work in containers too.

Xen turn your PC into a hypervisor. Where you can switch your OS without much hassle.

Making each OS boot on bare metal will make you cry if you want to be able to boot several different OSes.

Choose one:

• XEN
• virt-manager

Yes. I stand corrected.

So the kernel memory management system wants to free up some RAM... it'll either kick stuff out of the page cache (this is the disk cache), or write some stuff out to swap. vm.swappiness determines "relative I/O cost" of swapping something out versus dropping some disk cache (i.e. how much you think it'll slow the system down.) Total value is 200, so default vm.swappiness=60 means page cache is 140 (200-60). 140/60=2.33, so it considers regular disk I/o to be about 2.33 times the speed of swap. Settings vm.swappiness=100 means swap and disk I/O are equally fast; on modern kernels, in case you had a fast swap system (like some auxillary RAM disk or optane ssds or something) you can even set vm.swappiness over 100 to say 150 to say swap is faster than your regular disk.

https://stackoverflow.com/questions/72544562/what-is-vm-swappiness-a-percentage-of

vm.swappiness value should be between 0 and 100 IIRC.

My short answer:

Should I switch to Wayland?

Yes.

Applications that don't cope with wayland still work via Xwayland. Go ahead.

Oh those times were truly horrible.