This is a draft of an issue I intend to post on the rails/rails repo.
Update: the issue is posted
TL;DR; My fairly large Rails app (173 models, 208 controllers) is suffering from a continuously increasing slowdown that makes it hard to work on it. Each reload of the code takes longer than the previous one, with delays increasing to minutes after just a few reloads. I have identified a cause and it's also present on new apps (
rails new leaky). No solution yet.
For the past years I've been coping with an issue that Rails feels extremely slow when developing. I start the server, wait for it to boot up and open the site. It takes a minute or two before it loads.