Paperback: 214 pages
Publisher: O'Reilly Media; 1 edition (October 30, 2015)
Product Dimensions: 7.1 x 0.4 x 9.1 inches
Shipping Weight: 12.8 ounces (View shipping rates and policies)
Average Customer Review: 4.5 out of 5 stars See all reviews (2 customer reviews)
Best Sellers Rank: #1,067,621 in Books (See Top 100 in Books) #166 in Books > Computers & Technology > Internet & Social Media > Web Browsers #228 in Books > Computers & Technology > Web Development & Design > Web Services #2530 in Books > Computers & Technology > Programming > Web Programming
WebPageTest is an indispensable tool in every performance engineer's toolkit. If you're an existing user, this book will fill in and explain important gaps. If you're just getting into the performance field, this book will give you a fast head start on the rest of us, who had to learn it through trial and error.The book is split into three high-level sections:Basic Use Cases: offers a walkthrough of the waterfall, connection view, and the metrics that WPT results provide. Think of it as web performance 101: what metrics you should look for and where, how to interpret them, and how to compare tests. In short, a good intro for someone new to the field, and a quick skim for those familiar with the topic.Intermediate Use Cases: a more accurate description would be "test setup". This is a great section that covers the many decisions you have to make to ensure that you're measuring the right things: picking the browser, location to run the test from, picking the right network profile, scripting multi-visit flows, testing authenticated pages, and more. Too many folks overlook all this, which leads them to focus on optimizing the wrong bottlenecks -- don't make this mistake! This section provides a nice hands-on look for how to use your existing analytics data to set all the parameters.Advanced Use Cases: a hands-on look at driving WPT through API (e.g. monitoring performance changes over time), integrating it with your build infrastructure (e.g. to detect performance regressions at commit time, before they reach production), and setting up your own private instances (e.g. to test pages that can't or shouldn't be reached by public agents). The instructions are simple and easy to follow; you'll be up and running in no time.
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