How to Find, Debug and Fix N 1 Queries in Rails

I doubt the Rails blogosphere needs yet another introduction to N 1 queries. You can check out my previous post for a quick recap.Instead, let’s discuss how to establish a repeatable routine for spotting N 1 issues before they start manifesting in production. It’s common for developers to work with a minimal local data set. Unfortunately, working with a database resembling production is usually not possible. But seeding local data for your test user to mimic production sizes could be a perfect compromise.