I have several whonix-ws based VMs which I use to start tor-browsers inside of. After some time after starting their respective browser, they will always start to fill their max memory and increase CPU-load. The qubes-widget and xentop tell the same story here.
However, when I run free inside the VM, they aren’t even close to 100% memory usage. In fact, increasing max-memory hat no noticeable effect on this issue.
This is mainly annoying because the CPU-fan is very loud when it’s under that much load. Since that is probably caused by some form of swapping, is it possible to run a VM without any swap?