Profile Parameters of Memory Management
Use
Profile parameters enable you to set up your memory management system to get maximum benefit from it. By setting the parameters correctly, you can adjust memory management exactly to your resources and requirements.
Notes on Implementation
The default parameter settings usually ensure the smooth operation of your memory management system. Monitoring the
Memory Management System enables you to uncover possible weak spots.Integration
This section explains what each parameter does. The different settings for each platform are described in the
Platform-Specific Description of Memory Management.Features
The parameters govern how the memory management system behaves and restrict it so that it does not exceed operating system or hardware limitations. Certain parameters may only restrict individual work processes, and others might limit resources that are used by all work processes, for example, the extended memory. There are also parameters that help you configure memory management statistics.
Controlling Memory Management
abap/heaplimit: Work Process RestartMemory Management Resources for One Work Process
ztta/roll_extension: Limit for Extended Memory abap/heap_area_dia: Heap Memory Limit for Dialog Work Processes abap/heap_area_nondia: Heap Memory Limit for Non-Dialog Work Processes abap/heap_area_total: Heap Memory LimitMemory Management Limitations
abap/heap_area_total: Heap Memory Limit for Dialog Work Processes em/initial_size_MB: Extended Memory Pool Size rdisp/ROLL_SHM: Roll Buffer Size rdisp/ROLL_MAXFS: Maximum Roll File Size rdisp/PG_SHM: Size of the Paging Buffer rdisp/PG_MAXFS: Maximum Size of the SAP Paging File ztta/roll_area: Roll Area ztta/roll_first: Size of the Initial Allocation from the Roll Area em/blocksize_KB: Segment Size for the Extended MemoryMemory Management Statistics
em/stat_log_size_MB: Statistics - User Context Size em/stat_log_timeout: Statistics - User Context Size