Automating Web Performance Measurement  | Blog  | Chrome for Developers
Web performance can have a huge impact on your entire user experience. If you’ve been looking at improving your own site’s perf lately, you’ve probably heard of PageSpeed Insights - a tool that analyzes pages and offers advice on how to make them faster based on best practices for mobile and desktop web performance. PageSpeed’s scores are based on a number of factors, including how well your scrip
User timing API  | Articles  | web.dev
High performance web applications are crucial to a great user experience. As web applications become more and more complex, understanding performance impact is vital to creating a compelling experience. Over the past few years, a number of different APIs have appeared in the browser to help analyse performance of the network, load times, etc. but these don’t necessarily give fine-grained detail wi
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Performance in ECMAScript 6 | pixeldonor
ECMAScript 6–otherwise known as "Harmony"–packs a plethora of new exciting features for Javascript. Several browsers have been sneaking in these additions under the hood for quite some time as specifications have reached consensus. Most of these language updates aren't anything unique to Javascript–in fact, most of the syntax and APIs closely mirror other mature languages and preprocessors like Py
Writing Fast JavaScript For Games & Interactive Applications
Recent versions of JavaScript engines are designed to execute large bodies of code very fast but if you don't know how JavaScript engines work internally you could easily degrade your application's performance. It's specially true for games that need every drop of performance they can get. In this article I will try to explain some common optimization methods for JavaScript code that I picked up d
GitHub - theironcook/Kojak: A Simple JavaScript Performance Profiler
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Bucky — Performance Measurement of Your App's Actual Users
Automatically get every page load and AJAX request into Graphite or OpenTSDB Free, open source, and self-hosted Fast, efficient, and less than 4kb of compressed javascript
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Improving front page performance: removing images, 5 ways We regularly hold Fix-Its at Khan Academy, where we take a day to work on the little things that pile up, the bugs and tweaks and optimizations we don't find the time to do otherwise. On Tuesday, we had a Fix-It dedicated entirely to performance, and we made a Trello board of performance improvement ideas, many of them around speeding up ou
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February 11, 2014 4:59 pm | 3 Comments Recently someone asked me if it was possible to measure the performance of localStorage. While this was difficult a few years ago, we can do it now thanks to Navigation Timing. This post explains how to measure localStorage performance as well as the results of my tests showing the maximum size of localStorage, when the penalty of reading localStorage happens
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A follow up to obtaining 60fps scrolling performance 60fps scrolling article got quite a few people excited but also a few smart people to point out some flaws in the approach. I was planning to just update the original article but I’ve compiled so much info about this topic that I thought it would be better to do a follow up article and dive into the detail of the techniques that I tried and some
StrongLoop - What Makes Node.js Faster Than Java?
What Makes Node.js Faster Than Java? by Issac Roth Jan 30, 2014 / Community Every few weeks someone posts a Java vs Node benchmark, like PayPal’s or Joey Whelan’s. As one of maintainers of Node core and contributors to many npm modules, StrongLoop is happy to see Node winning lately. Everyone knows benchmarks are a specific measurement and don’t account for all cases. Sometimes Java is faster. Som
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30 January 2014 Have you ever used the translateZ hack to create a new compositor layer? Most developers have. Now there is an incoming property that's going to change how we tell the browser what we're trying to achieve. And that, in my opinion, is almost invariably a good thing. 5 min Read Time #perfmatters #apps Share Layer Hacking # Developers have long used translateZ to promote elements to t
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GitHub - axemclion/browser-perf: Performance Metrics for Web Browsers
GitHub - PaulKinlan/PSITools: PageSpeed Insights Tools
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