Have you experienced a Moodle site failure during a critical time? Are you worried that your Moodle service won't be able to meet your needs at the busiest times? This session will cover a variety of methods to ensure optimal performance of Moodle under peak load. The session will address general resource guidelines for expected concurrency and help administrators determine the correct sizing of IT resources for an expected Moodle load. The session will also cover benchmarking techniques that can be used to measure the actual performance of your Moodle infrastructure.