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.
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Log in to Test Manager.
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Go to Performance Scenarios, open a scenario, and expand a load group.
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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.
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Define performance expectations. Breaching these thresholds will highlight
warnings or errors in the results dashboard, allowing you to identify unstable
scenarios.
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- 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).
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- In the Average error rate threshold, specify the
acceptable failure rate (%) across all executions (e.g.,
1%).
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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.
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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).
