You can specify how the virtual CPUs of a virtual machine can share physical cores on a hyperthreaded system.

Two virtual CPUs share a core if they are running on logical CPUs of the core at the same time. You can set this for individual virtual machines.

1

In the vSphere Client inventory panel, right-click the virtual machine and select Edit Settings.

2

Click the Resources tab, and click Advanced CPU.

3

Select a hyperthreading mode for this virtual machine from the Mode drop-down menu.