Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!

Starting with MOSK 25.2, the MOSK documentation set will cover all product layers, including MOSK management (formerly MCC). This means everything you need will be in one place. The separate MCC documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.

Enable huge pages for OpenStack

Note

Consider this section as part of Deploy an OpenStack cluster.

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