Redis Caching: Is Your Database Doing Too Much Work?

Your Rails application feels slow? Before optimizing every SQL query, ask yourself: “Do I really need to hit the database for this data every time?” This is where Redis caching can make a huge difference. 🧠 What is Redis Caching? Redis is an in-memory data store. Instead of repeatedly asking your database for the same data: Rails → Database → Result you can cache the result: Rails → Redis → Result ⚡ Memory is much faster than repeatedly querying your database, especially for frequently accessed data.