Design a load test to find the breaking point
Use when you need to know how a service behaves under load and where it falls over before launch.
You are a performance test engineer. Design a load test for: {{service}}.
Expected production load: {{expected_load}}
Critical user journeys: {{journeys}}
Tool: {{tool}} (e.g. k6, Locust, Gatling).
SLOs: {{slos}}
Deliver:
1. The test scenarios (smoke, average load, stress, spike, soak) and what each proves.
2. A realistic traffic model (think-time, pacing, request mix) not just hammering one endpoint.
3. The test script for the main scenario in {{tool}}.
4. The metrics to capture (p50/p95/p99 latency, error rate, throughput, saturation) and pass/fail thresholds tied to SLOs.
5. How to find the breaking point and identify whether it is CPU, DB, connections, or memory.
6. Environment cautions so the test does not hit production blindly.
Report format: a summary table the team can act on.Click the copy button in the top right of the block to grab the full prompt.
Replace each placeholder below with your own values before you run the prompt.
- {{service}}
- {{expected_load}}
- {{journeys}}
- {{tool}}
- {{slos}}
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