Eggplant Performance emulates real user activity on a system through virtual users (VUs). Each VU executes a script, or sequence of scripts (a workflow) that contain actions which replicate a real user's interaction with an application. Although a real user requires a single desktop or workstation client, many Eggplant Performance VUs can be simulated from a single client machine.
Eggplant Performance enables you to understand how a system will cope under load with thousands of concurrent users performing various activities, i.e., customers booking concert tickets online. To increase load on the system, you can add more VUs.