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# Test API performance

> Learn how to use Postman. Search the docs and support resources!

## Docs

- [Simulate user traffic to test your API performance](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/testing-api-performance.md): Test the performance of your APIs with Postman.
- [Configure and run performance tests in Postman](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/performance-test-configuration.md): Use the Collection Runner to test the performance of your API with the same requests and collections you use for functional API tests.
- [View metrics for performance tests](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/performance-test-metrics.md)
- [View failed test assertions for performance tests](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/test-assertions/overview.md): The Tests tab in your performance test results shows how your test assertions behave as load increases.
- [View test assertion failure trends in performance tests](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/test-assertions/performance-test-failures.md)
- [View test assertions by virtual user load in performance tests](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/test-assertions/performance-test-virtual-user-load.md)
- [View error details for performance tests](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/performance-test-errors.md)
- [View run timeline in performance tests](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/performance-test-timeline.md)
- [Test data overview](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/test-data/overview.md)
- [Use a data file to simulate virtual users](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/test-data/performance-test-data-files.md)
- [Use a dataset to simulate virtual users](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/test-data/performance-test-dataset.md)
- [Troubleshoot performance tests in Postman](https://learning.postman.com/latest-v-12/docs/tests-and-scripts/performance-testing/troubleshoot-performance-tests.md)