MPW_LOLIMIT

   MPW_LOLIMIT sets a lower limit for the modified-page list. When
   writing of the list causes the number of pages on the list to
   drop to or below this limit, writing stops.

   MPW_LOLIMIT ensures that a certain number of pages are available
   on the modified-page list for page faults. If the number is
   too small, the caching effectiveness of the modified-page list
   is reduced. If it is too high, less memory is available for
   processes, so that swap (and page) may increase.

   MPW_LOLIMIT has the AUTOGEN and GEN attributes.