What happened?

On some hardware CPU Info has extra field - cells and other fields are adjusted to that topology.
Unfortunately i cannot find doc where it's defined, but here is the code from 2024.1:

https://github.com/openstack/nova/blob/stable/2024.1/nova/virt/libvirt/driver.py#L8478-L8482

So i got result like that:

# nova api microversion 2.87
cpu_info:
  arch: x86_64
  model: Cascadelake-Server-noTSX
  vendor: Intel
  topology:
    cells: 2
    sockets: 1
    cores: 20
    threads: 2
  features:
...

Related issue: openstack-exporter/openstack-exporter#494

Version

v2 (current)