Articles tagged “performance”
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Improving Performance in Firefox and Across the Web with Speedometer 3
In collaboration with the other major browser engine developers, Mozilla is thrilled to announce Speedometer 3 today. Like previous versions of Speedometer, this benchmark measures what we think matters most for performance online: responsiveness. But today’s release is more open and more challenging than before, and is the best tool for driving browser performance improvements that we’ve ever seen.
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Performance Tool in Firefox DevTools Reloaded
In Firefox 98, we’re shipping a new version of the existing Performance panel. This panel is now based on the Firefox profiler tool that can be used to capture a performance profile for a web page, inspect visualized performance data and analyze it to identify slow areas.
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Warp: Improved JS performance in Firefox 83
With Warp (also called WarpBuilder) we’re making big changes to our JIT (just-in-time) compilers, resulting in improved responsiveness, faster page loads and better memory usage. The new architecture is also more maintainable and unlocks additional SpiderMonkey improvements. This post explains how Warp works and how it made SpiderMonkey faster.
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The Baseline Interpreter: a faster JS interpreter in Firefox 70
Modern web applications load and execute a lot more JavaScript code than they did just a few years ago. While JIT (just-in-time) compilers have been very successful in making JavaScript performant, we needed a better solution. We’ve added a new, generated JavaScript bytecode interpreter to the JavaScript engine in Firefox 70. Instead of writing a new interpreter from scratch, we found a way to do this by sharing most code with our existing Baseline JIT. Meet the new Baseline Interpreter.
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Optimizing Performance of A-Frame Scenes for Mobile Devices
A-Frame makes building 3D and VR web applications easy, so developers of all skill levels can create rich and interactive virtual worlds. For an Oregon State University student project focused on WebVR, our team investigated performance and optimizations for A-Frame on Android smartphones. We developed a means of benchmarking the level of 3D complexity a mobile phone is capable of, and determining which performance metrics are required for such a benchmark.
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Animating like you just don’t care with Element.animate
In Firefox 48 we’re shipping the <a href="https://developer.mozilla.org/docs/Web/API/Element/animate" target="_blank"><b>Element.animate()</b></a> API — a new way to programmatically animate DOM elements using JavaScript. Let’s pause for a second — “big deal”, you might say, or “what’s all the fuss about?” After all, there are already plenty of animation libraries to choose from. In this post I want […]
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Optimising SVG images
SVG is a vector image format based on XML. It has great advantages, most notably it is lightweight. Since SVG is a text format, it can be viewed and modified using a simple text editor, and applying GZIP compression produces excellent results. It’s critical for a website to provide assets that are as lightweight as […]
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jsDelivr – The advanced open source public CDN
This is a guest post by Dmitriy Akulov and his project jsDelivr. – Editor’s note. As a developer you are probably aware of Google Hosted Libraries. Google offers an easy and fast way to include 12 of the most popular js libraries in your websites. But what if you are a webmaster and you want […]
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Optimizing your JavaScript game for Firefox OS
When developing on a quad core processor with 16 gigabytes of RAM you can easily forget to consider how it will perform on a mobile device. This article will detail some best practices and things to consider for moving a game to Firefox OS or any similar hardware target. Making the best of 256 Mb […]
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There is no simple solution for local storage
TL;DR: we have to stop advocating localStorage as a great opportunity for storing data as it performs badly. Sadly enough the alternatives are not nearly as supported or simple to implement. When it comes to web development you will always encounter things that sound too good to be true. Sometimes they are good, and all […]
