WSINC is a system parameter that specifies the number of pagelets by which the limit of a working set is automatically increased at each adjustment interval (which is quantum end). Decreasing the value of this parameter tends to reduce the speed with which working set limits are increased when the need arises. Normally, you should keep this parameter at a high value because a rapid increase in limit is often critical to performance.
At a setting of 150, for example, the system increases the limit of a working set by 150 pagelets each time an increase is required. On Alpha and Integrity servers, the default value is 2400 512- byte pagelets (150 8192-byte Alpha and Integrity server pages). A value of 0 for WSINC disables the automatic adjustment of working set limits for all processes. Limits stay at their base values. You can disable the automatic adjustment of working set limits on a per-process basis by using the DCL command SET WORKING_SET. WSINC has the DYNAMIC and MAJOR attributes. On Alpha and Integrity servers, WSINC also has the AUTOGEN attribute.