How is Locust used in a load test?
Distributed and scalable Locust supports running distributed load tests across multiple machines and can therefore be used to simulate millions of concurrent users. Battle-tested and proven Locust has been used to simulate millions of concurrent users.
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What does locust count and hatch rate mean?
The locust count is the total number of users to spawn. The hatch rate is the number of users that are spawned per second, starting from zero when load generation begins. (The “hatching” period is the ramp-up period from when the test begins until the maximum number of users is reached.)
What are the minimum and maximum wait times like in Locust?
The min/max wait times control the amount of time each simulated user waits between running tasks. Each user will run a random task, wait a random amount of time between min_wait and max_wait, and then repeat. At this point you can start the Locust web server – you can then start the test in one of two ways:
How to start Locust on a web server?
At this point you can start the Locust web server – you can then start the test in one of two ways: go to localhost:8089 in your browser, type in the numbers and click start. The locust count is the total number of users to spawn.
How to load an API test with Apache benchmark?
With Apache Benchmark Apache benchmark is an easy-to-use tool to help you understand how an HTTP server copes with high volumes of traffic. The tool comes pre-installed on MacOS.
What is the best open source load testing tool?
An open source load testing tool. Define user behavior with Python code and populate your system with millions of concurrent users. There is no need for clunky user interfaces or bloated XML. Just plain code. Locust has been used to simulate millions of concurrent users.
Where can I see the Locust UI?
You can open http://localhost:8089 in your favorite browser to see the Locust user interface. Locust asks you to specify two values: Number of users to simulate – This is the total number of users you want to simulate.