How to correctly distribute cores in Proxmox?

Question

Proxmox

Good afternoon,

There is a physical server with 1 processor and 4 cores on it Proxmox, it has one virtual machine and almost all resources are given to it, if I want to add another VM, I will have to cut the CPU (core) resources from the first one or the same give it 2-4 cores and virtual machines will alternately use resources?

Answer 1

Ideally, the total number of cores should correspond to the real CPU
. Otherwise, the machines will be processed one by one at max load

Answer 2

More importantly, remember to enable numa and use memory ballooning.

Answer 3

For your task, the best option is to give all the cores to all machines and set the priorities of the processor time queue in cpuunits