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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 is the software framework company for physical AI systems. RTI Connext delivers the reliability, security and performance essential for highly distributed autonomous and physical AI systems.

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Performance

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

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The Connext Advantage
High Throughput

Approaching the theoretical bandwidth of Gigabit Ethernet, using modest CPUs

Ultra-Low Latency

Increases linearly with data payload size

Reliability

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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Launcher Icon PerfTest

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:
perf-latency-chart-04-2024

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.

perf-latency-chart-04-2024

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.

perf-compression-chart-05-2021

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?
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Modeling Connext Performance

Learn how to ensure performance tests are realistic.

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Connext + ROS 2 Performance
5 min read
Parallel Trajectories: Behind the Scenes of the Indy Autonomous Challenge

 by Andrew Saba

A guest blog by Andrew Saba, Chief Engineer for the MIT-PITT-RW team and master's student at Carnegie Mellon University...
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At the Speed of Light: Next-Gen Vehicle Development with DDS and Lidar

 by Neil Puthuff & Nick Mishkin

A few months ago, the first-ever autonomous racing competition using full-size Indy Lights race cars was held at the...
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11x Performance Gain: Latest Connext DDS, ROS 2 Performance Benchmarks

 by Neil Puthuff

As real-time distributed systems become increasingly complex, the factors that affect the performance of the systems...