Prompt
What should I use for API performance testing in CI?
Latest observation
Oct 6, 2026
OpenAI APIWeb search: off
For API performance testing in CI, the best choice depends on how “heavy” and how “repeatable” you need the tests to be.
Good options
- k6
Best overall for CI/CD. Lightweight, fast to start, scriptable in JavaScript, and designed for automation. - Gatling
Great for JVM-based teams and more advanced load modeling. Strong reporting, but a bit heavier. - JMeter
Very common and flexible, but usually more cumbersome in CI because it’s XML-heavy and can be slower to manage. - Locust
Good if you prefer Python and want flexible scenario scripting.
My recommendation
- If you want simple, reliable CI performance checks: k6
- If you need complex load testing with strong analytics: Gatling
- If your team already uses Python: Locust
- If you already have lots of existing test plans: JMeter
Practical CI approach
In CI, don’t run full-scale stress tests on every commit. Instead:
- run small smoke/perf tests on each PR
- run baseline load tests on merges to main
- run full load/stress tests on a schedule or before release
If you want, I can suggest a setup based on your stack, e.g. GitHub Actions + k6, GitLab CI + Gatling, or Jenkins + JMeter.