Tsung
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Tsung (earlier known as idx-Tsunami) is a stress testing tool written in the Erlang language. It can currently stress test HTTP, PostgreSQL , SOAP and Jabber/XMPP servers. Tsung is distributed under the GPL license. Tsung can simulate hundreds of simultaneous users on a single system. It can also function in a clustered environment.
[edit] Features
- High Performance: load can be distributed on a cluster of client machines.
- Multi-protocols using a plugin system: HTTP, SOAP, PostgreSQL and Jabber/XMPP. SSL is also supported.
- Several IP addresses can be used on a single machine using the underlying OS's IP Aliasing.
- OS monitoring (CPU, memory, and network traffic) using SNMP or Erlang agents on remote servers.
- XML configuration system; several sessions can be used to simulate differents 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 thinktimes and the arrival rate can be randomize using a probability distribution (exponential currently).
- HTML reports can be generated during the load to view response times measurement, server CPU, amongst others.
