User context and roll area

hello
plz help me
what is roll area and user context?????
reply
thaknx
aafaq husain

Hi,
<b> Roll Area</b>
This parameter is used to specify the total size of the roll area, in bytes.
<b>Activities</b>
The roll area is not important with 64 bit platforms where sufficient extended memory is available. The default value is platform-specific and is determined dynamically. The default value is specified in transaction RZ11. This value should not normally be changed.
<b>User Contexts</b>
The memory management system assigns memory to user contexts from the following areas: roll area, SAP extended memory, and heap memory.
The order of assignment from these memory areas arranges itself according to whether the user context runs in an SAP dialog work process or in another SAP work process. This enables the SAP system to optimally use the characteristics of the individual memory types.
When allocating memory, the following characteristics for individual memory types become noticeable.
Check this to kn0w more
http://help.sap.com/saphelp_nw2004s/helpdata/en/34/d9c8b9c23c11d188b40000e83539c3/content.htm
Regards,
Santosh

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