Great International Developer Summit (GIDS)

Tuning the JVM for Performance: 10 Optimizations Every Developer Should Know - Gireesh Punathil

33:36 · 21 Apr 2026 – 24 Apr 2026 · YouTube

About this talk

This talk covers how significant performance improvements of 10 to 40 percent can be achieved in Java workloads without modifying any source code. The speaker explores the top 10 JVM performance tuning options that developers and architects should understand, using real-world examples to demonstrate the impact of small configuration changes on workload efficiency. Key topics include memory tuning, execution controls, startup optimization, container awareness, and diagnostic tools like JFR and async-profiler. Attendees will gain practical knowledge on managing trade-offs in performance tuning, especially in containerized environments, along with setup snippets to help reproduce experiments in their own systems. Participants will leave with a comprehensive JVM performance playbook to enhance their applications.