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Performance Testing

Guides for authoring, running and analysing tests across web automation, API and performance — plus setup, collaboration and release notes.

Run Types and Load Model

Run types and the load model define how much load a performance testcase applies and how long it runs. Configure them on the performance testcase under Performance → Testcases — in the API, Web, or combined load panels. Load model is separate from Test Run Config (browser, delays, on-failure behavior).

Load settings

SettingAPIWeb
ConcurrencyVirtual Users (parallel API threads)Virtual Instances (one browser per device)
Fixed IterationsEach user/instance runs the flow N times
Time-BasedEach user/instance runs for N seconds
Ramp Up TimeSeconds to gradually increase from zero to full concurrency
Ramp Down TimeSeconds to gradually decrease load at the end of the run (0 = no ramp-down)
API + WebConfigure API and Web panels separately

Under How should the test run?pick Fixed Iterations or Time-Based — only one mode is active. Virtual Users cannot exceed your plan's Concurrent API Users limit (see ). For API source rules (testcase vs JMX), see .

Note:

  • JMX API tests: load fields are read-only — values come from the uploaded JMX (and optional CSV).
  • Platform-built API/Web: you edit all load fields; ramp may not behave like JMX gradual ramp on the current execution path.

Configure load — workflow

  1. Open Performance > Testcases and create or edit an API load performance testcase.
  2. In API Load Test Parameters, choose Select from existing API testcases and pick the functional testcase (for example Sample_APIs).
  3. Set Virtual Users (Concurrent users) (for example 3).
  4. Stay within your plan's Concurrent API Users limit — Standard: 100, Enterprise: 500. See .

Time-Based

  1. Under How should the test run?, choose Time-Based — Run for a set duration.
  2. Enter Duration (Seconds) and Ramp Up/Down Time. Confirm the info banner (for example: the test will execute for 300 seconds per virtual user).
API load testcase with Time-Based duration, Virtual Users, and ramp settings

Fixed Iterations (alternate)

  1. Choose Fixed Iterations — Run a specific number of times.
  2. Enter Number of Iterations and Ramp Up/Down Time. Confirm the info banner (for example: the test will execute exactly 8 iteration(s) per virtual user).
API load testcase with Fixed Iterations, Virtual Users, and ramp settings
  1. Click Save. The load model is stored on the testcase and used on every cloud run.

For Web load, use Virtual Instances in Web Automation Parameters — same run types and ramp fields.

Expected outcome

The performance testcase has a defined load model — concurrency, run type, duration or iterations, and ramp — ready for cloud execution. Platform-built tests use values you set; JMX tests use values from the uploaded plan.