Increase available memory for Load Generators

As with any Java program, the Load Generator memory is limited. This limit must be raised whenever the Load Generator memory level indicator regularly exceeds 90% during the test.

• To configure the available memory

1. Edit the <install-dir>\conf\agent.properties file.
2. Edit the VM argument:

   For x64, default settings are:

   -XX:MaxRAMFraction=4

   VM will use maximum 1/4 of total system memory.

• If you want the VM to use maximum 1/2 of the total system memory, use below setting:

  -XX:MaxRAMFraction=2

• Another way to set the size is to use the absolute value like in the example below where the VM is set to use maximum 4 GB of total system memory:

  -Xmx4g

For x86, default settings are: -Xmx800m. This means that the VM will use maximum 800 MB of total system memory.

Home