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RTI is the world’s largest DDS supplier and Connext is the most trusted software framework for critical systems.

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From downloads to Hello World, we've got you covered. Find all of the tutorials, documentation, peer conversations and inspiration you need to get started using Connext today.

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RTI provides a broad range of technical and high-level resources designed to assist in understanding industry applications, the RTI Connext product line and its underlying data-centric technology.


RTI is the infrastructure software company for smart-world systems. The company’s RTI Connext product is the world's leading software framework for intelligent distributed systems.

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RTI Connext provides a significant performance advantage over most other messaging and integration middleware on every supported platform.


The Connext Advantage

High Throughput

Approaching the theoretical bandwidth of Gigabit Ethernet, using modest CPUs

Ultra-Low Latency

Increases linearly with data payload size


Sustains low latency and throughput even at high levels of message traffic

RTI Connext Performance Benchmarks

RTI benchmarked Connext with a wide variety of latency and throughput tests using RTI Performance Test (PerfTest). It includes scripts to run the tests on different platforms.

These results show that Connext provides sub-millisecond latency that scales linearly with data payload size and throughput that easily exceeds 90% of line rate over gigabit Ethernet.

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The PerfTest benchmarking tool is completely free, along with documentation and a video tutorial.

To run these benchmarks on your own hardware, please download or contact your local RTI representative:


One-Way Latency Test - 10Gbps Network

This graph shows the one-way latency without load between a Publisher and a Subscriber running in two Linux nodes in a 10Gbps network.


Throughput Test - 10Gbps Network

This graph shows the expected throughput behavior when performing a 1-1 communication between two Linux nodes in a 10Gbps network.


Throughput Data Compression Test - 1Gbps Network

This graph shows the expected throughput behavior when using data compression in a 1-1 communication scenario between two Linux nodes in a 1Gbps network.

Looking for benchmarking best practices?


Modeling Connext Performance

Learn how to ensure performance tests are realistic.

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Connext + ROS 2 Performance

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