Chasing Performance Phantoms

Explore the hidden culprits behind persistent performance problems in this insightful conference talk by Jon Hodgson, Technical Director of Riverbed Technology. Delve into the concept of "performance phantoms" and learn effective techniques for detecting and eliminating these elusive issues. Discover how to optimize code performance without modifying the code itself, troubleshoot slow transactions, and look beyond the code to identify bottlenecks. Examine the application's ecosystem and understand phantom delays caused by VM pauses and garbage collection. Follow along as Hodgson demonstrates the impact of initial configurations and reconfiguration strategies to favor critical app servers. Gain valuable insights into verifying improvements and enhancing overall application performance in this comprehensive 20-minute presentation from Web Summit.

Intro
Making code faster... without touching the code
Troubleshooting Slow Transactions
Looking Beyond the Code
The Application's Ecosystem
Phantom Delay: VM Pause
Garbage Collection
Phantom Delay: GC
Compound Phantom: VM Pause + GC
Initial Configuration
Reconfiguration to Favor the Critical App Server
Verifying the Improvement