In a load test, multiple virtual users are run by means of a test script against a target server to determine the load impact on server performance. A large load test requires an appropriate testing environment on your LAN, including a full complement of agent computers to host the virtual users.
Do not enable complete result-logging during load testing because it might interfere with load-test results. However, the TrueLog On Error logging option writes necessary log files to a disk when errors occur, allowing you to inspect replay errors visually.