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.
<install-dir>\conf\agent.properties file.For x64, default settings are:
-XX:MaxRAMFraction=4
VM will use maximum 1/4 of total system memory.
-XX:MaxRAMFraction=2
-Xmx4g
-Xmx800m. This means that the VM will use maximum 800 MB of total system memory.