Node.js profiling – ein Deep Dive

Take a guided dive into the world of Node.js performance profiling. This talk demystifies CPU sampling, async stack traces and flame chart magic using built-in Node.js features and modern tools. You'll learn how to capture high-fidelity performance data, interpret flamegraphs, identify bottlenecks across async boundaries, and turn raw trace events into actionable insights. Perfect for developers who want to understand what their Node.js apps are really doing under the hood—and how to make them faster.

Vorkenntnisse

• Basic understanding of Node.js vs JavaScript

Lernziele

• Understand Node.js architecture (event loop, worker threads, V8 internals) and how it affects performance profiling.
  
• Record and analyze CPU profiles with built-in Node flags and external profilers like Chrome DevTools.
  
• Interpret flamegraphs to identify hotspots, slow functions, and blocking operations.
  
• Profile asynchronous code paths.