High Performance Browser Networking : What Every Web Developer Should Know About Networking and Browser Performance, Paperback

High Performance Browser Networking : What Every Web Developer Should Know About Networking and Browser Performance Paperback

3.5 out of 5 (1 rating)


How prepared are you to build fast and efficient web applications?

This eloquent book provides what every web developer should know about the network, from fundamental limitations that affect performance to major innovations for building even more powerful browser applications - including HTTP 2.0 and XHR improvements, Server-Sent Events (SSE), WebSocket, and WebRTC.

Author Ilya Grigorik, a web performance engineer at Google, demonstrates performance optimization best practices for TCP, UDP, and TLS protocols, and explains unique wireless and mobile network optimization requirements.

You'll then dive into performance characteristics of technologies such as HTTP 2.0, client-side network scripting with XHR, real-time streaming with SSE and WebSocket, and P2P communication with WebRTC.

Deliver superlative TCP, UDP, and TLS performance Speed up network performance over 3G/4G mobile networks Develop fast and energy-efficient mobile applications Address bottlenecks in HTTP 1.x and other browser protocols Plan for and deliver the best HTTP 2.0 performance Enable efficient real-time streaming in the browser Create efficient peer-to-peer videoconferencing and low-latency applications with real-time WebRTC transports


  • Format: Paperback
  • Pages: 344 pages, black & white illustrations
  • Publisher: O'Reilly Media, Inc, USA
  • Publication Date:
  • Category: Web programming
  • ISBN: 9781449344764



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The first two parts of this book describe the four lower layers of the OSI stack with an emphasis on performance and wireless technology. The third part treats HTTP (including HTTP 2.0), also with a performance emphasis. The fourth part is on Javascript APIs for Networking in the Browser(XHR, SSE, WebSockets, and WebRTC); this part only hints at performance as an alibi.The book starts weak, but then gradually improves in quality, until the last chapter (about WebRTC) is then again only mediocre. This means that the part about HTTP and the chapters on XHR, SSE, and WebSockets are quite readable.If one is only interested in delivering performance improvements for a website this whole book may be a great help; especially if one needs to do so under time-pressure.However, I have some serious objections against the book:First, it is overly repetitive and long-winded. Key-phrases that the author seems to enjoy are sometimes repeated once every page. The whole content could be shortened to maybe 60% of the length.Second, especially in the beginning, I had the feeling that this book was put together in a rush, which is a problem that I already observed with other web-related books from O'Reilly. Also, the book contains to many elaborations on history for my taste. These "brief histories of ..." only consist of shallow enumerations of Standards, which leads to the third and most significant objection:Too often, I did not find that the book describes the underlying principles (as promised in the foreword). Often the explanations left me in an unclear state and I found them shallow. I would by no means be able to implement, say, a WebSocket client. Granted, this might not be necessary to setup a website. But it shows that the underlying principles are not conveyed... Well, I guess it depends on what your definition of "understanding the underlying principles" is. Everything is relative.