Parameter
ztta/roll_first
Short text
Quota for early allocation in the roll area
Parameter Description
The value specifies the amount of memory in bytes that is allocated from the roll area, before memory is allocated from the extended memory. This means that small user contexts can remain completely in the roll area. Any wastage and therefore total consumption of the extended memory can be minimized, because extended memory is assigned to users in granules of a specific length (usually 1 MB).
Aim
Optimum usage of the extended memory
Application Area
Memory management
Parameter Unit
Bytes
Default Value
1000000 (1MB), (others)
1 (1Byte), (Microsoft Windows NT)
Who is permitted to make changes?
The customer No manual maintenance under Windows NT required
Operating System Restrictions
(Windows NT) Effective in all work processes, due to identical allocation sequence (Windows NT).
(Others) Only effective in dialog work processes
Are other parameters affected or dependent?
Should be clearly (at least 100 KB) smaller than ztta/roll_area
