For MySpace, the goal was to test an additional 1 million concurrent users on their live site stressing the new video features. The key word here is ‘concurrent’. Not over the course of an hour or day… 1 million users concurrently active on the site. It should be noted that 1 million virtual users are only a portion of what MySpace typically has on the site during its peaks. They wanted to supplement the live traffic with test traffic to get an idea of the overall performance impact of the new launch on the entire infrastructure. This requires a massive amount of load generation capability, which is where cloud computing comes into play. To do this testing, MySpace worked with SOASTA to use the cloud as a load generation platform.