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Tsung (formerly known asidx-Tsunami) is asoftware load testing tool written in theErlang language and distributed under theGPL license. It can currently stress testHTTP,WebDAV,LDAP,MySQL,PostgreSQL,SOAP andXMPP servers. Tsung can simulate hundreds of simultaneous users on a single system. It can also function in a clustered environment.

Features include:^[1]

• SeveralIP addresses can be used on a single machine using the underlying OS's IP Aliasing.
• OS monitoring (CPU, memory, and network traffic) usingSNMP,munin-node agents or Erlang agents on remote servers.
• Different types of users can be simulated.
• Dynamic sessions can be described inXML (to retrieve, at runtime, an ID from the server output and use it later in the session).
• Simulated user thinktimes and the arrival rate can be randomized via probability distribution.
• HTML reports can be generated during the load to view response time measurements, server CPU, and other statistics.

• Load Testing AWS Kinesis
• Tsung Information Provided By Process One
• Performance Measurement & Applications Benchmarking With Erlang. EUC05

• Benchmarks (computing)
• Erlang (programming language)
• Load testing tools

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