Rational SiteLoad is an easy-to-use, scalable tool that emulates e-commerce traffic and provides Web developers and designers with precise, real-time information on Web site performance. Rational SiteLoad reduces the risks of going live by making testing fast and easy on a tight development schedule. You can have real-time test data within an hour of installing Rational SiteLoad. Real-life resource monitoring tells you what happens to system resources as loads are increased CPU system, user, and queue length, memory percentage used, memory page input/sec and output/sec, percent disk used, cache hit ratios and more.