This presentation introduces the major topics and most important points of the new book Efficient MySQL Performance published by O’Reilly (Dec. 2021). And like the book, this presentation is intended for software engineers using MySQL, not managing it (but DBAs are gladly welcomed). In 40 minutes, we’ll quickly cover topics including query metrics, indexes and indexing, data access patterns, server metrics, and more. At the end, you’ll have a “lay of the land” for understanding the aspects of MySQL that affect performance, and you’ll understand where to go and what to learn next to increase performance.