SESSION + Live Q&A

Using FlameGraphs To Illuminate The JVM

FlameGraphs offer us a new way to visualize execution profiles, combined with Linux system profiler perf and the recently added -XX:+PreserveFramePointer option in JDK 8u60 we now have for the first time a way to capture a comprehensive profile for the OS, JVM and your Java code.

In this session, we explore the JVM and Java applications using this new perspective and reflect on the profiles and the utility of this new method:

  • Introduction to FlameGraphs
  • Old School? FlameGraphs using jstack and honest-profiler
  • perf-map-agent + FlameGraphs + Java
  • Java code left+right+center (oh yes, you are so special my child!)
  • Profiling the profilers
  • Compilers ate my mother profile
  • GC thrashed my dad profile
  • And more advanced FlameGraphs usage as time permits!

Speaker

Nitsan Wakart

Performance Consultant and OSS Contributor

A blogger and a coder with a pedantic passion for performance. My work has spanned army intelligence systems, dot.com era startups, financial institutions and innovative product companies. A Performance Consultant by day, and an OSS contributor by night (JCTools, Aeron, Honest-Profiler and other...

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Speaker

Nitsan Wakart
Nitsan Wakart

Performance Consultant and OSS Contributor

Location

Churchill, G flr.

Track

Java - Performance, Patterns and Predictions

Topics

Java 11

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