SYSMWCNT

   SYSMWCNT sets the quota for the size of the system working set,
   which contains the pageable portions of the system, the paged
   dynamic pool, RMS, and the resident portion of the system message
   file.

   While a high value takes space away from user working sets, a low
   value can seriously impair system performance. Appropriate values
   vary, depending on the level of system use. When the system is
   running at full load, check the rate of system faults with the
   MONITOR PAGE command of the Monitor utility. An average system
   page fault rate of between 0 and 3 page faults per second is
   desirable. If the system page fault rate is high, and especially
   if the system seems to be slow, you should increase the value of
   SYSMWCNT. However, do not set this parameter so high that system
   page faulting never occurs.

   SYSMWCNT has the AUTOGEN, GEN, and MAJOR attributes.