You might be able to improve the performance of the applications on a virtual machine by pinning its virtual CPUs to fixed processors. This allows you to prevent the virtual CPUs from migrating across NUMA nodes.

1

Find the virtual machine in the vSphere Web Client inventory.

a

To find a virtual machine, select a data center, folder, cluster, resource pool, or host.

b

Click the Related Objects tab and click Virtual Machines.

2

Right-click the virtual machine and click Edit Settings.

3

Select the Virtual Hardware tab, and expand CPU.

4

Under Scheduling Affinity, set the CPU affinity to the preferred processors.

Note

You must manually select all processors in the NUMA node. CPU affinity is specified on a per-processor, not on a per-node, basis.