What is the difference between 4 and 8 virtual sockets to physical sockets?

Hello Team,

What is the difference between creating an instance with *4* or *8 virtual sockets*, since the hypervisor has only *4 physical sockets*. My question is where do sockets, cores and virtual threads fit into the physical hardware. I think this question is not just related to Openstack, but with any virtualization.

My hypervisor configuration is as follows:

CPU(s): 192 Online CPU(s) list: 0-191 Thread(s) per core: 2 Core(s) per socket: 24 Socket(s): 4 NUMA node(s): 4

Do you have any documentation that I can read and understand better?

That we have a nice week!