Rails IS slow, but part of the reason it shows so poorly on that tests is a weird glitch in how unicorn and wrk interact. In my testing for the Ruby Web Benchma

Rails IS slow, but part of the reason it shows so poorly on that tests is a weird glitch in how unicorn and wrk interact. In my testing for the Ruby Web Benchmark Report (http://www.madebymarket.com/blog/dev/ruby-web-benchmark-report.html http://www.madebymarket.com/blog/dev/ruby-web-benchmark-repo...) I ran into pretty bizarre low performance on unicorn and wrk. TechEmpower uses Unicorn because it's the fastest MRI based rack server solution. In JRuby, you have a few more high performance options, and Torquebox 4 is nearly as fast as Go in Hello World. That being said, the only benchmark that matters is how your app performs on your tech stack. Anyone can write a slow DB query that ruins performance.