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Blogs ยป Archive for July 8th, 2008
Beef Up Firebug in a Jiffy
The next frontier in front-end web development tools is performance measurement and reporting.
At the O’Reilly Velocity Conference Scott Ruthfield, VP of Engineering & Technology at WhitePages.com, gave a talk titled ‘Jiffy: Open Source Performance Measurement and Instrumentation‘ and revealed Jiffy, a web application interface performance measuring and reporting tool. Jiffy captures performance measurements for any specified event at the client’s end, storing them in a database, and reporting on them.
At the same conference Bill Scott, Director of UI Engineering at Netflix, in his presentation ‘Improving Netflix Performance‘, talked about an internal performance monitoring project he’s been working on that included a handy visualization extension for Firebug.
In one of those fortuitous crossing-of-paths that seem to happen so often at conferences, Bill adapted his Firebug extension to use Jiffy performance data resulting in the Jiffy Firebug Extension. This extension is a handy visualization of the performance data provided by the Jiffy JavaScript library, making it viable to use the library in an immediate, stand-alone, single-session mode.
Jiffy client-side measurements are captured using a JavaScript library with a simple API, called Jiffy.js, and posted back to the server via Ajax. Jiffy.js uses …
