Summary: Ruby apps in the memory-restrictive and randomly-routed Heroku environment don't have to be slow. Achieve (3706 words/18 minutes) I've seen a lot of slow Ruby web apps. Sometimes, it feels like my entire consulting career has been a slow accumulation of downward-sloping New Relic graphs. Why is the case? If you read that bastion of intellectual thought, Hacker News, you'd think it was bec