Tsung is an open-source multi-protocol distributed load testing tool

It can be used to stress HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP and Jabber/XMPP servers. Tsung is a free software released under the GPLv2 license.

The purpose of Tsung is to simulate users in order to test the scalability and performance of IP based client/server applications. You can use it to do load and stress testing of your servers. Many protocols have been implemented and tested, and it can be easily extended.

It can be distributed on several client machines and is able to simulate hundreds of thousands of virtual users concurrently (or even millions if you have enough hardware ...).

Tsung is developed in Erlang, an open-source language made by Ericsson for building robust fault-tolerant distributed applications.

News

Jul 20 2015 Tsung 1.6.0 is available. Web dashboard added.
Apr 9 2014 Tsung 1.5.1 is available. MQTT support added.
May 24 2013 Tsung 1.5.0 is available. Websocket, BOSH and AMQP (experimental) support added.
Jan 4 2012 Tsung 1.4.2 is available
Nov 21 2011 Tsung is now in debian
Sep 13 2011 Tsung 1.4.1 is available ! This is a bugfix only release.
Sep 5 2011 Tsung 1.4.0 is available !
Apr 6 2011 Github mirror available. Should be synchronized with the master branch on gitorious
Aug 17 2010 Tsung 1.3.3 is available ! Only bugfixes in this release
Jun 20 2010 Tsung 1.3.2 is available ! Many bugfixes and enhancements
Feb 2 2010 Migration to Git
Sep 10 2009 Tsung 1.3.1 is available ! Many bugfixes and enhancements: Release notes
Sep 16 2008 Tsung 1.3.0 is available ! WebDAV, LDAP and MySQL support added, many bugfixes and other enhancements
Mar 25 2007 A tutorial: Writing a Tsung plugin has been contributed by tty

Main features

High Performance: the load can be distributed on a cluster of client machines
Multi-protocols using a plugin system: HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP , XMPP/Jabber, BOSH, MQTT and AMQP are currently supported. SSL is also supported.
Several IP addresses can be used on a single machine using the underlying OS IP Aliasing
OS monitoring (CPU, memory and network traffic) using SNMP, Munin or Erlang agents on remote servers.
XML configuration system; several sessions can be used to simulate different type of users. Dynamic sessions can be easily described in XML (this can be used to retrieve at runtime an ID from the server output and use it later in the session).
In order to generate a realistic traffic, user think-times and the arrival rate can be randomize using a probability distribution
HTML reports can be generated during the load to view response times measurement, server CPU, etc.

HTTP

HTTP/1.0 and HTTP/1.1 support
GET, POST, PUT, DELETE, HEAD, OPTIONS, PATCH methods
Cookies are automatically handled
'GET If-modified since' type of request
WWW-authentication Basic and Digest
Proxy mode to record sessions using a Web browser.
Basic support for SOAP using the HTTP mode (the SOAPAction HTTP header is handle).
WebDAV extensions
Websocket

XMPP (Jabber)

Authentication, presence and register messages
Chat messages to online or offline users
Roster set and get requests
Global users' synchronization can be set on specific actions
PubSub, MUC, Virtual Hosts
BOSH & XMPP over Websocket

PostgreSQL

Authentication (password or MD5)
Basic and extended Queries
Proxy mode to record sessions

MySQL

This plugin works only with MySQL version 4.1 and higher.

Secured authentication method only (MySQL >= 4.1)
Basic Queries

LDAP

Bind
Add, search, modify queries
starttls (only with R12B-0 Erlang and up)

AMQP

basic publish and consume
publisher confirm and consumer ack
qos

MQTT

It supports MQTT V3.1

Connect to mqtt broker with options
Publish mqtt messages to the broker
Subscribe/unsubscribe topics
Support QoS 0 and QoS 1s MQTT V3.1.