High-Speed Web Applications

A two day in-depth workshop that focuses on performance, explores exciting hidden DevTools features and equips participants with powerful techniques to run performance tests properly.

null
Level : IntermediateDomains DevTools JavaScript TypeScript
Book in-house workshop

Knowing how to run performance tests on your web app properly is one thing, and putting those metrics to good use is another. Both aspects are crucial for the overall success of your performance optimization efforts, which means you'll need to have a precise understanding of all the ins and outs of both performance data and performance tooling to ensure the best outcome. 

This workshop will explore various tools and techniques required to face this challenge, providing you with a complete roadmap for performance analysis and optimization.

Description

The Chrome DevTools are a powerful addition to the developer’s toolset that allows finding and eliminating your app’s performance bottlenecks. It is packed with features perfect for auditing page performance and deriving actionable insights. By visualizing data at a proper level of abstraction, it can help you pinpoint performance-related issues and set a baseline from which to start introducing improvements.

That said, knowing how to run performance tests on your web application properly is one thing, and putting those metrics to good use is another. Both aspects are critical to the overall success of the endeavor. Thus it is so crucial to understand all the ins and outs of performance data and performance tooling.

This might sound like a lot but don’t be put off! Over the course of this training, we will walk through the pitfalls and tricks of the trade of Chrome DevTools to provide you with a complete roadmap for performance analysis and optimization. 

Chrome Developer Tools should be seen as a fount of knowledge about your app performance that anyone can benefit from. At that realization, the best part begins – experimenting and finding the most effective ways to improve the application’s speed.

Takeaways

In this workshop, we will explore the exciting hidden DevTools features and learn about:

  • Web Vitals – what they are and how to measure them

  • Scripting, parsing, and prioritization

  • Network analysis and request debugging

  • The browser’s rendering pipeline

  • How to read the performance timeline

  • Frame drop, and why we should care about it

  • Scheduling techniques and scheduling priority

  • HTML structures, their styling and rendering in a browser

  • The Paint Flash APIs and scroll performance issues

  • Layer composition, layer squashing, and reflow triggers

  • Main thread scheduling and non-blocking UIs

Agenda

  • Google Chrome icon - Logo

    The browser render pipeline

    • Understand how the browser processes the code you write

    • Runtime performance of scripting, rendering, and painting

    • Minimize the work the browser needs to do

  • Google Chrome icon - Logo

    (Core) Web Vitals

    • What is the performance score?

    • LCP, INP and CLS as well as all other important metrics

    • How to measure and improve web vitals?

  • RAIL MODEL

    Understand the RAIL-model

    • Get to know the underlying model behind modern performance metrics

  • DevTools Logo

    Tooling

    • How to read, record and analyze flame charts

    • Performance Tab

    • Performance Insights Tab

    • Performance Monitor

    • Network Tab

    • Chrome & MS Edge DevTools

    • Lighthouse

    • Userflow

    • Memlab

  • JavaScript

    The JavaScript event loop

    • Understand how the JavaScript vm executes code

    • Learn the difference between macrotasks & microtasks

    • Gain in-depth knowledge about scheduling techniques

    • Control the event loop by prioritizing work

    • Master the single thread - main thread scheduling

  • Google Chrome icon - Logo

    Leveraging browser native features for better performance

    • Project Aurora

    • Resource hints

    • Priority hints

    • ResizeObserver & IntersectionObserver

  • CSS

    CSS and DOM performance best practices

    • Forced reflow, layout thrashing

    • CSS containment & content visibility

    • Next generation CSS features

    • ResizeObserver & IntersectionObserver

  • DevTools Logo

    JavaScript Memory Analysis

    • Understand how JavaScript applications consume memory

    • How to inspect the memory heap

    • How identify memory leaks

    • Strategic approaches how to fix memory leaks

  • DevTools Logo

    Ship less and more efficient

    • Network analysis and improvement strategies

    • Bundle size analysis & shipping as less code as possible

    • Resource hints

    • Priority hints

  • JavaScript

    JavaScript & TypeScript language best practices

    • Choose the right data structure

    • Looping performance

  • DevTools Logo

    Auditing, monitoring & measurement

    • How to conduct a performance audit?

    • What and how to measure?

  • Google Chrome icon - Logo

    Performance code review checklist

Your trainers for this workshop