Benoit Daloze - On Benchmarking With Ruby

Ever wondered what it would take to have *stable* and *reliable* measurements for your performance? Or wished to know the evolution of it across releases and rubies? Or simply to know how fast or slow is some code? Perfer is a benchmarking tool I developed as a [GSoC](http://www.google-melange.com/gsoc/proposal/review/google/gsoc2012/eregon/1) project intending to solve these, and to provide an easy way to store, transform and compare the results and to make a graph of it. The talk will start with some benchmarking best practices, explaining why using the benchmark stdlib is usually not sufficient. I will have a look at alternatives and finally I will explain Perfer's approach and show how to use it and how it can be useful in real-world examples.