strange lscpu behavior on Proxmox CT and VM

susumanin

11/25/23, 10:03 AM

I have Proxmox and run on it one Ubuntu in VM and another one in CT. Both ubuntu 22.04 jammy. Both have lscpu version 2.37

When I run lscpu in CT:

Vendor ID:               GenuineIntel
  Model name:            Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
    CPU family:          6
    Model:               42
    Thread(s) per core:  2
    Core(s) per socket:  4
    Socket(s):           1
    Stepping:            7
    CPU max MHz:         5900.0000
    CPU min MHz:         1600.0000
    BogoMIPS:            7005.51

When I run lscpu in VM:

Vendor ID:               GenuineIntel
  Model name:            Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz
    CPU family:          6
    Model:               42
    Thread(s) per core:  1
    Core(s) per socket:  4
    Socket(s):           1
    Stepping:            7
    BogoMIPS:            7005.27

The difference - in VM lscpu do not shows MHz.

But when I run "lscpu -e=CPU,MHZ" I get on CT:

CPU      MHZ
  0 5900.000
  1        -
  2        -
  3        -
  4        -
  5        -
  6        -
  7        -

and in VM:

CPU      MHZ
  0 3502.638
  1 3502.638
  2 3502.638
  3 3502.638

Why plain lscpu shows different output? Thanks.

I've tried another versions of Ubuntu with older lscpu but get the same issue. Virualization is enabled in BIOS.

0 + 0

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