/sys$common/syshlp/helplib.hlb Sys Parameters, BORROWLIM  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    BORROWLIM defines the minimum number of pages required on the
    free-page list before the system permits process growth beyond
    the working set quota (WSQUOTA) for the process. This parameter
    should always be greater than FREELIM.

    This parameter allows a process to grow beyond the value set by
    the working set quota (WSQUOTA) to the working set quota extent
    (WSEXTENT) on a system that has a substantial memory on the free-
    page list. This automatic working set adjustment also depends
    upon the values of parameters WSINC, PFRATH, and AWSTIME.

    Working set growth attempts to alleviate heavy page faulting. To
    make use of this growth, you must also set the user's WSEXTENT
    authorization quota to a larger number than the WSQUOTA value.

    BORROWLIM is an AUTOGEN, DYNAMIC and MAJOR parameter.