Device calibration is performed to calculate the optimal Payload value for the number of Virtual Users per Load Injector Server. The device complexity and required CPU resources are considered during calibration. Calibrated Payload value ensures LI Server CPU load no more than optimal 60-80% and provides the maximum load distribution among the LI Servers.
Calibrated Payload varies based on a task type:
- HTTP(S) Test: from 500 to 1000 users
- Web Page/Streaming Media/Web Application Test: from 8 to 25 users
- Postman Collection Test: from 20 to 100 users