Track page speed, ad inventory, browser width/height and errors? All that is possible by realizing that Google Analytics lets you feed in arbitrary data and then allowing you to slice it to get new insights.
Tackling mobile performance is a bigger challenge than desktop - more operating systems, greater browser disparity, and limitations of the device. In this session Steve Souders shows how to analyze mobile performance across all the popular devices. He demonstrates analysis tools, services for accessing devices remotely, and quirks he's discovered that show mobile performance is full of surprises.
This is a session for developers who are interested in learning about
the Tornado framework for Python and event-driven programming in
general. We'll talk about the benefits of Tornado and how we use it
and other libraries at Hipmunk to write robust software and to ease