64 KB page size support

Because the 64 KB page size is easy to use and because it is expected that many applications will see performance benefits when using the 64 KB page size rather than the 4 KB page size, AIX has rich support for the 64 KB page size.

No system configuration changes are necessary to enable a system to use the 64 KB page size. On systems that support the 64 KB page size, the AIX kernel automatically configures the system to use it. Pages that are 64 KB in size are fully pageable, and the size of the pool of 64 KB page frames on a system is dynamic and fully managed by AIX. AIX will vary the number of 4 KB and 64 KB page frames on a system to meet demand on the different page sizes. Both the svmon and vmstat commands can be used to monitor the number of 4 KB and 64 KB page frames on a system.