Step 4: Configure load group settings

When configuring a load group, you define how the selected test case will be executed at scale. Each parameter allows you to model realistic user behavior and enforce performance expectations.

1. Connectez-vous à Test Manager.
2. Go to Performance Scenarios, open a scenario, and expand a load group.
3. Under Virtual users, specify the number of concurrent simulated users assigned to the test case. Each group can support up to 500 virtual users, with a total of 2,000 across a scenario. Check the number of VU units and machines consumed after a Dry Run, based on your selection.
4. Define performance expectations. Breaching these thresholds will highlight warnings or errors in the results dashboard, allowing you to identify unstable scenarios.
   • • In the Max. response time threshold field, specify the upper time limit (in ms) that responses should not exceed (e.g., 5,000 ms for Group 1).
   • • In the Average error rate threshold, specify the acceptable failure rate (%) across all executions (e.g., 1%).
5. In the Data source field, link a Data Service entity as the data source to feed parameterized inputs such as user credentials or account details. This ensures that each virtual user can run with unique data, avoiding collisions and making execution closer to real-world usage.
6. Specify how the load is applied over time. Together, these settings allow you to model realistic traffic patterns such as gradual adoption, steady-state usage, and controlled shutdown.
   • The Delay field shows the wait time before the load group starts execution (e.g., 0 minutes).
   • The Ramp up field shows the period over which the number of concurrent users is gradually increased until the maximum number of users is reached (e.g., 2 minutes).
   • The Peak field shows the duration during which the maximum number of users remain active (e.g., 26 minutes).
   • The Ramp down field shows the period over which the number of users gradually decreases to zero (e.g., 2 minutes).