Working Set

A working set is a set of memory pages that a process is allowed to use.

Working Set Limits

Working set limits are established from SYSUAF:

• WSDEFAULT (working set default) is the number of pages allocated to a starting process
• WSEXTENT (working set extent) is the number of pages that a working set can grow to if this memory is available and it may borrow more pages.
• WSQUOTA (working set quota) is the number of pages guaranteed to an active process

However, they may not be set lower than the following system parameters:

• for interactive processes:
  • PQL_MSDEFAULT
  • PQL_MWSQUOTA
  • PQL_MWSEXTENT
• for detached processes:
  • PQL_SWSDEFAULT
  • PQL_DWSQUOTA
  • PQL_DWSEXTENT

See also

• OpenVMS Performance Management Manual