I am part of the RTI services team and we frequently help our users with optimizing performance. To see how we stack up, I recently benchmarked RTI Connext DDS against two open source DDS implementations. You would expect that comparing one DDS implementation with another is easy, but from the length of this blog you can probably guess that this was not the case. To help users navigate some of the common pitfalls when comparing DDS implementations, I decided to write them down in a blog. However, this topic is pretty broad so I’ve focused this blog on latency.