Jitwatch Save

Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.

Project README


Log analyser and visualiser for the HotSpot JIT compiler.

  • Video introduction to JITWatch video
  • Slides from my LJC lightning talk on JITWatch slides

For instructions and screenshots see the wiki


The JITWatch user interface is built using JavaFX which is downloaded as a maven dependency for JDK11+.

For pre-JDK11 you will need to use a Java runtime that includes JavaFX.


mvn clean compile test exec:java


gradlew clean build run

Build an example HotSpot log

# Build the code and then run
Open Source Agenda is not affiliated with "Jitwatch" Project. README Source: AdoptOpenJDK/jitwatch
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