Configure wwHeap memory settings
- Last UpdatedMay 28, 2025
- 1 minute read
wwHeap is a memory manager that manages the heap memory segment. The memory manager provides a mechanism for one or more programs to share virtual memory.
Caution: Modify the wwHeap memory settings only if you are experiencing memory conflicts reported in the Logger.
You can configure the wwHeap Memory settings by specifying the wwHeap size and start location. The default size, default start location, and allowable location range vary by operating system.
The default sizes are described in the following table:
|
Operating System |
Default Size |
|---|---|
|
32-bit |
1519 MB |
|
32-bit with the /3GB switch enabled |
2048 MB |
|
64-bit |
2048 MB |
The default locations and allowable location ranges are described in the following table:
|
Operating System |
Default Start Location |
Allowable Range |
|---|---|---|
|
32-bit |
0x21000000 |
0x00010000 to 0x7FFEFFFF |
|
32-bit with the /3GB switch enabled |
0x40000000 |
0x00010000 to 0xBFFEFFFF |
|
64-bit |
0x80000000 |
0x00010000 to 0xFFFEFFFF |
Configure wwHeap memory settings
-
Start Application Manager.
-
On the Tools menu, select Node Properties.
The Node Properties screen appears.
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Select the Memory Settings tab.
-
Do the following:
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In the Size box, enter the size of the wwHeap memory. You can enter any value between 1 MB and 2048 MB.
-
In the Start location box, enter the start address.
-
-
To restore the default values, select Restore to Defaults.
-
Select OK.