Enable huge pages for OpenStack with Tungsten Fabric

Note

The instruction provided in this section applies to both OpenStack with OVS and OpenStack with Tungsten Fabric topologies.

The huge pages OpenStack feature provides essential performance improvements for applications that are highly memory IO-bound. Huge pages should be enabled on a per compute node basis. By default, NUMATopologyFilter is enabled.

To activate the feature, you need to enable huge pages on the dedicated bare metal host as described in Enable huge pages in a host profile during the predeployment bare metal configuration.

Note

The multi-size huge pages are not fully supported by Kubernetes versions before 1.19. Therefore, define only one size in kernel parameters.

See also

OpenStack official documentation: Huge pages