Feb 20, 2025 · Learn how to perform high-concurrency load testing with Locust, an open-source Python framework. This step-by-step guide covers setting up Locust, creating test scenarios, analyzing performance metrics, and automating load tests to optimize API performance

An open source load testing tool. Define user behaviour with Python code, and swarm your system with millions of simultaneous users.

Locust tests can be run from command line or using its web-based UI. Throughput, response times and errors can be viewed in real time and/or exported for later analysis. You can import regular Python libraries into your tests, and with Locust's pluggable architecture it …

Oct 26, 2023 · Locust is a Python-based open-source load testing tool that allows you to design test scenarios. It is scalable, user-friendly, and delivers real-time information. This blog post will walk you through the process of utilizing Locust, including examples of test implementation.

Oct 10, 2024 · Locust is an open-source load testing tool that helps simulate heavy user traffic on web applications and APIs. Compared to traditional load testing tools, Locust offers more customization and scalability—it supports Python as the scripting language, allowing us to write tests specific to our API or web service use cases.

Dec 26, 2024 · discover how to effectively load test your applications using python and locust. this guide covers installation creating load tests analyzing results and advanced techniques

How you structure the test source code is of course entirely up to you, but we recommend that you follow Python best practices. Here’s an example file structure of an imaginary Locust project: Project root. common/ __init__.py. auth.py. config.py. locustfile.py. requirements.txt (External Python dependencies is often kept in a requirements.txt)

Jul 18, 2023 · Locust is a potent tool in every developer's toolbox for efficient load testing. With this free, open-source Python programme, you can simulate millions of concurrent users and describe user behaviour using Python code. This article will serve as your comprehensive, example-filled guide to load testing using Locust. What is Locust?

Mar 29, 2024 · Installing Locust is quite simple, just need pip and you can run it. I usually using virtual env before installing the tools. Create a virtual env. Activate the venv. Then you can run Locust here. This one simple example to load test on login API.

Mar 9, 2025 · Load testing is a crucial part of ensuring that our APIs can handle real-world traffic without slowing down or failing. While tools like JMeter and Gatling are popular, Locust offers a Python-based, easy-to-use alternative for simulating user traffic.