I recently finished up the basics for a feature in Benchee that I had been pretty excited about for a while now - reduction counting! But after trying it out on my own for a bit to look for bugs and see how it could be best used so I could document the feature well, I pretty quickly ran into some confusing results. As it turns out, the results were correct and the implementation of the feature is totally fine, but my understanding of how reductions could be used to measure performance was flawed, and so that’s what I wanted to share today.

http://devonestes.com/inside-a-reduction