Trace4J: A Performance Tracing Tool for Java

Trace4J is a lightweight, flexible, and insightful performance tracing tool for Java. Trace4J’s code is available on Github.

Trace4J Basics

• Preface
  • Key Features
    • Lightweight
    • Flexible
    • Insightful/Accurate
    • Visualization
  • Design Overview
    • 1. Online Tracer
    • 2. Offline Data Processor
    • 3. Web-based GUI
• Installation
  • Dependencies
  • Download & Build
    • Option 1 — Download Prebuilt Package
    • Option 2 — Build from Source
  • Environment Variables & Path Setup
• Manual
  • Table of Contents
  • 1. Operating Environment Check
    • Preparation Steps
    • Environment Verification
  • 2. Online Tracer
    • Overview
    • Features
    • Usage
  • 3. Offline Data Processor
    • Purpose
    • Command Example
    • Operations
    • Output
  • 4. Web-based GUI
    • Overview
    • Launch GUI
    • Interface Layout
    • Example
  • 5. Optimization Loop