Tsung
A distributed load testing tool.
Overview
Tsung is an open-source, high-performance benchmark and stress testing tool. It is developed in Erlang and can be used to stress HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP, and XMPP/Jabber servers. Its distributed nature allows it to simulate thousands of virtual users from a single machine and scale to millions by using a cluster of client machines.
✨ Key Features
- High performance, written in Erlang
- Distributed and scalable architecture
- Multi-protocol support (HTTP, WebDAV, SOAP, databases, etc.)
- XML-based configuration for scenarios
- Real-time monitoring with a web interface
- Detailed HTML reports
🎯 Key Differentiators
- Extremely high performance due to its Erlang-based, lightweight process architecture
- Excellent scalability for distributed testing
- Strong support for non-HTTP protocols like XMPP
Unique Value: Tsung leverages the concurrency and fault-tolerance of the Erlang OTP to provide a massively scalable framework for distributed load testing across multiple protocols.
🎯 Use Cases (4)
✅ Best For
- Simulating very high numbers of concurrent users for web and chat services
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Users unfamiliar with XML configuration or the Erlang ecosystem
- Simple, non-distributed tests
🏆 Alternatives
It can often generate more load per machine than Java-based tools like JMeter or Gatling. However, its XML configuration is generally considered less user-friendly than the DSLs of Gatling or k6.
💻 Platforms
✅ Offline Mode Available
💰 Pricing
Free tier: Fully free and open-source.
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