It is a typical day at work when suddenly someone notices that the application loads slow. They immediately switch to complaining about database performance and demand that you find the problem and fix it. But how to verify the problem is really with the database? What are the common symptoms and where to look for them? And how to isolate the culprit?

The session will discuss the practical approach to troubleshooting performance problems in MySQL: where to start the investigation, what information to look at and how to interpret it. I will also be talking about useful tools and preparing the environment for effective troubleshooting.