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Unpacking the Black Box: Benchmarking JS Parsing and Execution on Mobile Devices
Optimizing the experience on mobile devices is a major priority for our industry, but many client performance characteristics are not well understood. In pursuit of the 1000ms time-to-glass holy grail, we wrote a tool to benchmark the initial parse and execute times of our JavaScript files. While high end devices are expectedly fast, midrange and lower end ones are surprisingly slow. We’ll share o
CSS Performance Tooling
Presented at CSSConf.eu, September 2014. Video: https://www.youtube.com/watch?v=FEs2jgZBaQA You've learned the concepts, now meet the tools. High-performance sites need to feel instant and deliver the goods in < 1000ms. In this talk, learn about the bleeding edge tools that can automate keeping your CSS on the fast path. Automate generating critical-path CSS, removing unused CSS, discovering dupli
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What does the browser pre-loader do?
