Configuring the number of large pages

Use the vmo command to configure the number of 16 MB large pages on a system.

The following example allocates 1 GB of 16 MB large pages:

 # vmo -r -o lgpg_regions=64 -o lgpg_size=16777216

In the example, the large page configuration changes will not take effect until you run the bosboot command and reboot the system. On systems that support dynamic logical partitioning (DLPAR), the -r option can be omitted from the previous command to dynamically configure 16 MB large pages without rebooting the system. For more information about 16 MB large pages, see Large pages.