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Remarkable React 27 Aug 2013 | 09:37 am
I gave a talk about React at BrazilJS few days ago. The "slides" are here. In this post I'll go over what I said (more or less) at the beginning of the presentation. I hope to follow up with some more...
Here’s to a faster Recommendations plugin 6 May 2013 | 12:47 am
So I've been part of the quest of making all Facebook social plugins faster, even if it means rewriting them from scratch. After the Send plugin, Like button (perf optimizations described here), Follo...
CSS animations off the UI thread 12 Mar 2013 | 09:25 am
This excellent Google I/O talk mentions that Chrome for Android moves the CSS animations off of the UI thread, which is, of course, a great idea. Playing around with it, here's what I found: Browser s...
C3PO: Common 3rd-party objects 19 Feb 2013 | 02:29 am
Problem: too much JavaScript in your page to handle 3rd party widgets (e.g. Like buttons) Possible solution: a common piece of JavaScript to handle all third parties' needs What JavaScript? If you've ...
Speed geek’s guide to Facebook buttons 15 Feb 2013 | 03:15 am
or "How to help your users share your content on Facebook and not hurt performance" Facebook's like button is much much faster now than it used to be. It also uses much fewer resources. And lazy-evalu...
Run jsperf tests in a bunch of WebPagetest browsers 12 Feb 2013 | 08:24 am
Motivation 1. You write a new test to confirm a JavaScript-related performance speculation 2. You click 3. Your test runs in a bunch of browsers Glossary JSperf.com is the site where all you JavaScrip...
webkit css-on-demand issues 12 Feb 2013 | 01:45 am
This post brought to you via Facebook engineers Jeff Morrison and Andrey Sukhachev, who discovered and helped isolate the issue. Use case Think a "single page app" use case. You click a button. Conten...
Digging into the HTTP archive #2 29 Dec 2012 | 09:43 am
Continuing from earlier tonight, let's see how you can use the HTTP archive as a starting point and continue examining the Internet at large. Task: figure out what % of the JPEGs out there on the web ...
Digging into the HTTP archive 29 Dec 2012 | 06:00 am
One way to do web performance research is to dig into what's out there. It's a tradition dating back from Steve Souders and his HPWS where he was looking at the top 10 Alexa sites for proof that best ...
Deck the Halls 2012 25 Dec 2012 | 07:46 am
Traditions are traditions. Marry Christmas with a new cover, this time it's Deck the Halls: Deck the halls (part one) (It's only part one because I didn't find the time to properly record what I had i...
