Scenarios and load shapes

A load test has one or more scenarios. Each scenario is a list of requests sent in order, with a think time between them, an optional data file (read in order or at random) and a weight that decides its share of the load.

Users or requests per second

• Users is a closed model: a number of people working at once, each waiting for an answer before the next request.
• Requests per second is an open model: new iterations start on schedule, whether or not earlier ones have finished. Iterations that would go over the limit of requests in flight are counted as dropped.

Shapes

Choose a Constant, Step or Spike load, with ramps up and down. The chart shows the shape before you start. Durations are written the way you would say them: 5 min, 1 h 30 m.

A test can have up to 10,000 users or 5,000 requests per second, and last up to 1 hour.

Scripts do not run during a load test; Start lists the requests that have one.