Modify Engine Heap Size on Microsoft Windows

About this task

If you determine that your system is running slowly, you can change the heap size on either the engine or the configuration manager (CM) to improve performance. When you install the Secure Proxy engine, the heap size is set to a default size of 2048MB. If you run the engine as a Microsoft Windows service, modify the engine heap size as follows:

Procedure

From the install_dir\bin directory, open the SSPengine$.lax file.
Modify the following parameter to the preferred value:
```
lax.nl.java.option.java.heap.size.max=2147483648
```
Save the file.
If you start the engine from a Command Prompt, do the following:
1. From the install_dir\bin directory, open the startEngine.bat file.
2. Modify the MAXHEAP parameter to the preferred value:
```
MAXHEAP=2048m
```
3. Save the file.
Note: You can change the heap size for the engine by setting a MAXHEAP environmental variable. You can configure the MAXHEAP environmental variable from a Command Prompt:
```
set MAXHEAP=2048m
```
Note: You can override the heap size for the engine by specifying the heap size when you invoke the engine from a Command Prompt:
```
startEngine.bat 2048m
```