PFRATL

   PFRATL specifies the page fault rate below which the limit of
   a working set is automatically decreased. The unit of measure
   is the number of faults per 10 seconds of processor time. At a
   setting of 1, for example, the system automatically decreases the
   limit of a working set if it is faulting less than 1 page every
   10 seconds.

   Increasing the value of this parameter tends to decrease the
   limits of the working sets, while decreasing its value tends to
   increase their limits.

   PFRATL has the AUTOGEN, DYNAMIC, and MAJOR attributes.