Partition - If the page database grows to a very large size, it is possible that partitioning the table could give a performance boost. This option partitions the table such that all active pages are in one partition, while the inactive ones are in another. The results of this depend on many factors, and are not always positive, so treat with caution. Reversing this process (removing the partitioning) will require use of additional MySQL tools outside of the wiki module. More sophisticated partitioning strategies might be more appropriate depending on the nature of both your wiki database and the performance issues you are facing.