Step 1: Mobile Browser Visibility

Steve Souders (Fastly)
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(3.67, 12 ratings)

Before Firebug existed it was hard to know what the browser was doing with your web page. Firebug (and more recent tools like dynaTrace Ajax Edition, Speed Tracer, Web Inspector, and HttpWatch) let us see how HTTP, JavaScript, CSS, the DOM, and rendering take up time as the user waits for the page to load. This visibility into browser performance has generated many web performance best practices as captured in tools like YSlow and Page Speed.

The performance evolution that took place on the desktop (tools and research resulting in best practices) is starting in mobile. Right now we’re at step 1: gaining visibility into what’s happening in the mobile browser. Without this visibility, mobile web developers are flying blind.

Tackling mobile performance is a bigger challenge than desktop because of more operating systems, greater browser disparity, and limitations of the device (CPU, memory, disk space, and screen size). 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.

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Steve Souders

Fastly

Steve Souders works at Google on web performance and open source initiatives. His books High Performance Web Sites and Even Faster Web Sites explain his best practices for performance along with the research and real-world results behind them. Steve is the creator of YSlow, Cuzillion, and SpriteMe. He is co-chair of Velocity and co-founder of the Firebug Working Group. He taught CS193H High Performance Web Sites at Stanford, and frequently speaks at conferences including OSCON, The Ajax Experience, SXSW, and Web 2.0 Expo.

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Comments

Robert Wang
03/31/2011 3:17pm PDT

Steve, look forward to more output of your mobile performance project!

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Frank Morris
03/30/2011 7:22pm PDT

Thin on content

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