In contrast to many other event-based apps it doesn't use callbacks, instead using light-weight processes, through gevent.
Advanced Features include: AJAX/Web Services, XML/JSON Data Viewer, API data/execution.
The tool is useful in scenarios where the requests have high response times.
Many existing tools are developed for scenarios with high request rate and quick response times, and fail to keep up with load generation when server response times are high, as the number of outstanding requests becomes very large .
Features include regular expression extractor, delay timer which helps in running complex test scenarios.
Requires Apache Tomcat, Apache Maven, Java jdk 1.8 or above. Tsung - Free open-source multi-protocol distributed load testing tool supported by Process-One.