Nuxt•2mo ago

Profiling a Nuxt app

Hello, I have a Nuxt app with a fairly large volume of data. I would like to know how to profile it so that I can focus optimization efforts. Thanks in advance

2 Replies

kapa.ai•2mo ago

Hi @Cheaterman. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To profile your Nuxt app and identify optimization opportunities, you have several built-in tools and recommended practices: 1. Nuxt DevTools Nuxt DevTools provides deep insights into your app’s performance and structure. Key features for profiling include: - Timeline: Tracks time spent on rendering, updating, and initializing components to help you spot performance bottlenecks. - Assets: Displays file sizes (e.g., images) so you can identify large assets. - Render Tree: Visualizes connections between Vue components, scripts, and styles, helping you optimize dynamic loading. - Inspect: Lists all files used in your app with their size and evaluation time, making it easier to find heavy or slow-loading files. You can also use the Hooks tab to monitor the time spent in each Nuxt hook, which is helpful for finding bottlenecks in your app’s lifecycle events. The DevTools also offer a Build Analyze tab to compare bundle sizes across builds and a Plugins tab to see plugin initialization times. These features collectively help you focus your optimization efforts where they matter most
Nuxt DevTools Features
Nuxt DevTools Performance. 2. Nuxi Analyze Use the nuxi analyze command to generate a visual representation of your production bundle. This helps you identify which components or libraries take up the most space, so you can consider lazy loading, code splitting, or replacing heavy dependencies
Nuxi Analyze. 3. Chrome DevTools The Chrome DevTools Performance and Lighthouse tabs are valuable for measuring runtime performance and web vitals like LCP, CLS, and INP. Lighthouse also audits accessibility, SEO, and best practices, providing actionable recommendations
Chrome DevTools. 4. WebPageTest For real-world performance diagnostics, use WebPageTest to analyze your app under various network and device conditions
Web Page Test. 5. Experimental Features Nuxt can add performance markers for hooks in browser devtools, making it easier to track hook timings in the Performance tab of Chromium-based browsers. This is enabled by default in development mode, but you can disable it in your nuxt.config.ts if needed:

export default defineNuxtConfig({
  experimental: {
    browserDevtoolsTiming: false,
  },
})

export default defineNuxtConfig({
  experimental: {
    browserDevtoolsTiming: false,
  },
})

Experimental browserDevtoolsTiming --- By combining these tools, you can profile your Nuxt app effectively and focus your optimization efforts on the most impactful areas. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

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Profiling a Nuxt app

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