SAP Global Extended Memory (EG)

 

SAP Global Extended Memory (EG):

 

The v is part of the extended memory (EM). It contains user specific data and can be accessed by all work processes. The EG is a part of the EM, which is used for multiprocessing. The EG contains data that does not belong to a specific user session. This may be data used for example for monitoring and statistics, table buffers of the database interface (DBI), or ABAP-shared objects that all work processes have access to independently of the user session. You set the size of the EG in profile parameter 

em/global_area_MB. 

Reference:

1. help.sap.com 
2. SAP Notes 
3. Linkedin