Control Groups (cgroups) for the Web? - igvita.com
You've optimized every aspect of your page—it's fast, and you can prove it. However, for better or worse, you also need to include a resource that you do not control (e.g. owned by a different subteam or a third-party), and by doing so you lose most, if not all, guarantees about the runtime performance of your page - e.g. an included script resource can execute any code it wants, at any point in y
Protocol Buffers, Avro, Thrift & MessagePack - igvita.com
By Ilya Grigorik on August 01, 2011 Perhaps one of the first inescapable observations that a new Google developer (Noogler) makes once they dive into the code is that Protocol Buffers (PB) is the "language of data" at Google. Put simply, Protocol Buffers are used for serialization, RPC, and about everything in between. Initially developed in early 2000's as an optimized server request/response pro
Decision Tree Learning in Ruby - igvita.com
By Ilya Grigorik on April 16, 2007 You've built a vibrant community of Family Guy enthusiasts. The SVD recommendation algorithm took your site to the next level by allowing you to leverage the implicit knowledge of your community. But now you're ready for the next iteration - you are about to roll out some new opt-in customizations, but you don't want to bug every user by asking them if they want
Ruby & WebSockets: TCP for the Browser - igvita.com
By Ilya Grigorik on December 22, 2009 WebSockets are one of the most underappreciated innovations in HTML5. Unlike local storage, canvas, web workers, or even video playback, the benefits of the WebSocket API are not immediately apparent to the end user. In fact, over the course of the past decade we have invented a dozen technologies to solve the problem of asynchronous and bi-directional communi
Script-injected "async scripts" considered harmful - igvita.com
By Ilya Grigorik on May 20, 2014 Synchronous scripts are bad because they force the browser to block DOM construction, fetch the script, and execute it before the browser can continue processing the rest of the page. This, of course, should not be news, and is the reason why we have been evangelizing the use of asynchronous scripts. Here is the canonical example: <!-- BAD: blocking external script
New Ruby 1.9 Features, Tips & Tricks - igvita.com
By Ilya Grigorik on February 03, 2011 Ruby 1.9 packs in a lot of new and improved features at all levels: it introduces a few new syntax constructs, the built-in libraries have been updated with hundreds of new methods and classes, it adds language level support for characters encodings, it ships with an entirely new virtual machine, and the list goes on. If you haven't already, you should serious
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