channelsac

We put these tests together after clients with existing Rails stacks wanted our input on choosing Phoenix or Rails for their specific real-time push features. The benchmark apps are simple – no database, no sessions, but we wanted to set the PubSub patterns up in a way that would give us insights into a wide range of applications. The blog repo contains everything to setup an instance and run the benchmarks yourself: https://github.com/chrismccord/channelsac

Written by Chris McCord the creator of Phoenix. His summary when comparing to Rails for real-time push notifications is below. "... the sweet-spot for Action Cable today is small workloads with few subscribers on any given topic. Going beyond this means engineering efforts and resources must be spent on managing multiple nodes and optimizing code out of channels. Higher workloads with broadcasts to more than a few dozen subscribers risks availability. With Phoenix, we've shown that channels performance remains consistent as notification demand increases, which is essential for handling traffic spikes and avoiding overload." Source code: https://github.com/chrismccord/channelsac