Explore performance profiling techniques using YourKit in this 35-minute Devoxx conference talk. Discover how to identify and resolve unexpected performance bottlenecks in real-world applications. Learn to leverage YourKit's advanced features for analyzing CPU usage, memory allocation, and object sizes. Compare YourKit with free JDK tools like jvisualvm, and understand why it's a valuable addition to a developer's toolkit. Follow along as the speaker examines actual profile snapshots, demonstrating practical methods to pinpoint and optimize code inefficiencies. Gain insights into handling duplicate strings, empty strings, and exceptions, as well as strategies for managing application outages. Benefit from the speaker's extensive experience in software architecture and model-based engineering across diverse projects and industries.