FREELIM

   FREELIM sets the minimum number of pages that must be on the
   free-page list.

   The system writes pages from the modified-page list, swaps out
   working sets, or reduces the size of the working sets to maintain
   the minimum count.

   While the larger free-page list generally means less page I/O, it
   also means less space for the balance set, which tends to result
   in more swap I/O. You can monitor the size of the free-page list,
   the amount of page, and the amount of swap with the MONITOR IO
   command of the Monitor utility.

   FREELIM has the AUTOGEN and MAJOR attributes.