Enabling vNUMA on your AHV cluster

  • 23 October 2020
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What is vNUMA?

vNUMA (virtual non-uniform memory access) is a memory-access optimization method for VMware virtual machines (VMs) that helps prevent memory-bandwidth bottlenecks.

The primary purpose of vNUMA is to give large virtual machines (or wide VMs) the best possible performance. vNUMA helps the wide VMs create multiple vNUMA nodes. Each vNUMA node has virtual CPUs and virtual RAM. Pinning a vNUMA node to a physical NUMA node ensures that virtual CPUs accessing virtual memory can get the expected NUMA behavior

Before enabling vNUMA on Virtual Machines, see AHV Best Practices Guide.

To enable vNUMA on your Virtual Machines, check this guide.


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