Database Reference
In-Depth Information
Figure 5.9
The Cores per Socket setting.
If you are going to change the default Cores per Socket setting, change it to an integer
multiple or integer divisor of the physical server's NUMA architecture. For example, if
you have a four-socket, six-core server, the Cores per Socket setting should be 2, 3, or
6. Do not factor hyper-threading into your calculation. When you are running a vSphere
cluster that has mixed physical NUMA configurations and you elect to modify the
default Cores per Socket setting, select a setting that aligns with the smallest NUMA
node size across all physical hosts in that vSphere cluster.
It is our recommendation that the default setting of 1 for Cores per Socket be used. The
reason for this recommendation is due to simplification, maintenance, and long-term
management. This parameter is set upon first boot for the virtual machine and does not
change if the virtual machine is vMotioned or cold-migrated to a physical server with a
