Show TOC

Function documentationabap/heap_area_total: Total Quota for Heap Memory Locate this document in the navigation structure


This parameter determines the upper limit of heap memory in bytes available to all work processes of an SAP application server. You can use this upper limit to restrict the swap space usage of an SAP application server to a specific amount. You can find more details on this topic under Functionality of the SAP Memory Management System.


The graphic below shows the relationship with the parameters abap/heap_area_dia, abap/heap_area_nondia, and ztta/roll_extension.

This graphic is explained in the accompanying text.


The value is specified in bytes.

The default value is platform-specific and is determined dynamically. This is the default value specified in transaction RZ11. This value should not normally be changed.

Note Note

This value ensures that even at maximum swap space usage of the SAP system and during normal operation, at least 100 MB swap space (or approximately 10-15%) remains free. See also Swap Space Requirements.

End of the note.