#perftools — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #perftools, aggregated by home.social.
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Record and analyze a performance trace #DevToolsTips
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Compare how your website looks with and without JavaScript
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Compare how your website looks with and without JavaScript
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Compare how your website looks with and without JavaScript
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Compare how your website looks with and without JavaScript
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Compare how your website looks with and without JavaScript
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🤩 New in Google Chrome Version 135 (Canary)
Now, we can calibrate our computer to emulate low-tier and mid-tier mobile phones in CPU throttling.
This great feature helps us improve the web performance by emulating more accurately.
Thank you, Chrome DevTools Team 🥰
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Avoid marking too many requests as high priority - "If all resources are a priority, none is a priority"
Selectively use the fetchpriority="high" attribute to prioritize only the most important resources, for example, the LCP image.
Marking too many requests as a high priority could mean important resources could be delayed, for example, requests that block rendering
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Debug network requests, source files, and performance traces with Gemini
https://developer.chrome.com/blog/new-in-devtools-132/#ai-assistance
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Web Performance Audit: Early Hints, Hydration State, and a Lazy Loaded LCP Image
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Don't miss this great talk by @daniel, a reference in the Open Source Community
Unpacking Bundling at @perfnowconf
https://www.youtube.com/watch?v=HxenDhBircw -
speedscope
🔬 A fast, interactive web-based viewer for performance profiles. -
If you need to check for Web Performance issues in a React project, take a look at React Scan, a tool that highlights re-rendered components
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Page Speed Benchmarks, by @speedcurve, is an interactive set of dashboards anyone can explore and use for their research
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3 new features to customize your performance workflows in DevTools, by @rick_viscomi
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What’s new (regarding Web Performance) in DevTools, Chrome 124
1️⃣ Hide functions and their children in the flame chart
2️⃣ Arrows from selected initiators to events they initiated
3️⃣ Enabling JS sampling adds detailed JavaScript call stacks to the performance trace -
trace.cafe - easy webperf trace sharing
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In the Chrome DevTools Canary version, the Performance now starts after the Profiling Overhead
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WebPerf Snippets
A curated list of snippets to get Web Performance metrics to use in the browser console or as snippets on Chrome DevTools -
The best way to improve web performance is with a data-driven approach.
The most effective tool is Real User Monitoring (RUM), and if the tool has the target attribution, it becomes a great source of information to detect bottlenecks in the interactions that users make, especially in the new metric Interaction to Next Paint (INP).
And @debugbear has this great feature 😊
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As always, another impressive job by @iamakulov , React Debugging Flowchart
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All my favorite tracing tools: eBPF, QEMU, Perfetto, new ones I built and more
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Automatically Compress Images on Pull Requests
https://calibreapp.com/blog/compress-images-in-prs by @calibre
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📣 New WebPerf Snippet
Mesure the TTFB sub-parts
https://webperf-snippets.nucliweb.net/Loading/TTFB#mesure-the-ttfb-sub-parts
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📣 New WebPerf Snippet
Mesure the TTFB sub-parts
https://webperf-snippets.nucliweb.net/Loading/TTFB#mesure-the-ttfb-sub-parts
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📣 New WebPerf Snippet
Mesure the TTFB sub-parts
https://webperf-snippets.nucliweb.net/Loading/TTFB#mesure-the-ttfb-sub-parts
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📣 New WebPerf Snippet
Mesure the TTFB sub-parts
https://webperf-snippets.nucliweb.net/Loading/TTFB#mesure-the-ttfb-sub-parts
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📣 New WebPerf Snippet
Mesure the TTFB sub-parts
https://webperf-snippets.nucliweb.net/Loading/TTFB#mesure-the-ttfb-sub-parts
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#WebPerfTip CrUX Dashboard Chrome shortcut
https://www.youtube.com/watch?v=t88_MvwLrns by Rick Viscomi
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📣 New WebPerf Snippet "Event Processing Time" to find the process time it took for events to finish, thanks to @josh_dev 😊
https://webperf-snippets.nucliweb.net/Loading/Event-Processing-Time
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📣 New WebPerf Snippet "Event Processing Time" to find the process time it took for events to finish, thanks to @josh_dev 😊
https://webperf-snippets.nucliweb.net/Loading/Event-Processing-Time
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📣 New WebPerf Snippet "Event Processing Time" to find the process time it took for events to finish, thanks to @josh_dev 😊
https://webperf-snippets.nucliweb.net/Loading/Event-Processing-Time
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📣 New WebPerf Snippet "Event Processing Time" to find the process time it took for events to finish, thanks to @josh_dev 😊
https://webperf-snippets.nucliweb.net/Loading/Event-Processing-Time
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📣 New WebPerf Snippet "Event Processing Time" to find the process time it took for events to finish, thanks to @josh_dev 😊
https://webperf-snippets.nucliweb.net/Loading/Event-Processing-Time
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Updated the Scripts Loading WebPerf Snippet to check the <script type="module">
https://webperf-snippets.nucliweb.net/Loading/Script-Loading
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Updated the Scripts Loading WebPerf Snippet to check the <script type="module">
https://webperf-snippets.nucliweb.net/Loading/Script-Loading
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Updated the Scripts Loading WebPerf Snippet to check the <script type="module">
https://webperf-snippets.nucliweb.net/Loading/Script-Loading
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Updated the Scripts Loading WebPerf Snippet to check the <script type="module">
https://webperf-snippets.nucliweb.net/Loading/Script-Loading
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Updated the Scripts Loading WebPerf Snippet to check the <script type="module">
https://webperf-snippets.nucliweb.net/Loading/Script-Loading
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Find Images With Loading Lazy and Fetchpriority
https://webperf-snippets.nucliweb.net/Loading/Find-Images-With-Lazy-and-Fetchpriority
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Find Images With Loading Lazy and Fetchpriority
https://webperf-snippets.nucliweb.net/Loading/Find-Images-With-Lazy-and-Fetchpriority
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Find Images With Loading Lazy and Fetchpriority
https://webperf-snippets.nucliweb.net/Loading/Find-Images-With-Lazy-and-Fetchpriority
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Find Images With Loading Lazy and Fetchpriority
https://webperf-snippets.nucliweb.net/Loading/Find-Images-With-Lazy-and-Fetchpriority
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Find Images With Loading Lazy and Fetchpriority
https://webperf-snippets.nucliweb.net/Loading/Find-Images-With-Lazy-and-Fetchpriority
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