Study upon study confirms that web performance has a direct correlation to revenue, operating costs, and search engine ranking. With this in mind, we all want our applications to be faster, but how do we know what bottlenecks to focus on? This course will cover how to leverage various browser APIs to capture your application’s live performance data, understand what the metrics mean, and focus on the ones you should really care about. Along the way you’ll learn how to monitor real users, understand when to use synthetic testing tools, and automate performance tracking.
Author Name: Nik Molnar
Author Description:
Nik Molnar is a Program Manager at Microsoft and co-founder of Glimpse, an open source diagnostics and debugging tool. Nik lives in Austin, Texas where he specializes in web development, web performance, web API’s, and community management. He is a frequent speaker at international conferences and on technical podcasts. In his spare time, Nik can be found cooking up a storm in the kitchen, hanging with his wife, and working on other open source projects.

Table of Contents

• Why Does Performance Matter?
  7mins
• Thinking About Performance
  5mins
• Understanding Individual Metrics
  13mins
• Handling Collections of Metrics
  15mins
• Gathering Metrics
  28mins
• Automating Metrics Gathering
  14mins
• What Should We Be Shooting For?
  13mins