Google Speed Tracer
Tomi H�s�
December 8, 2009
"it's been difficult for developers to identify problems in a
slow-to-respond application. So, tonight at Google Campfire One, we're
happy to announce that we're adding a new tool to Google Web Toolkit
called Speed Tracer."
"Speed Tracer is a Google Chrome extension that enables developers to
identify performance problems in their web apps using a "Sluggishness
Graph," in combination with many other metrics. In the spirit of clean,
simple design, developers need only look at the Y-Axis of their
application's Sluggishness Graph to see how they're doing:"
"* If the y-axis is close to zero, then the app is fast"
"* If the y-axis registers around 100%, then the app is, well, sluggish"
"And in either case, Speed Tracer provides lots of additional data to help
diagnose any particular performance issue."
"We think developers will find that Speed Tracer looks under the covers of
web applications like never before. In fact, we even used Speed Tracer to
optimize the performance of Speed Tracer itself! (It's really an HTML5
application after all, built with Google Web Toolkit, and deployed as a
Google Chrome extension.) If you're a web developer, download and install
Speed Tracer on the Google Chrome Developer Channel."
http://googleblog.blogspot.com/2009/12/faster-apps-for-faster-web-introducing.html
Google Speed Tracer
"Speed Tracer is a tool to help you identify and fix performance problems
in your web applications. It visualizes metrics that are taken from low
level instrumentation points inside of the browser and analyzes them as
your application runs. Speed Tracer is available as a Chrome extension and
works on all platforms where extensions are currently supported (Windows
and Linux)."
"Using Speed Tracer you are able to get a better picture of where time is
being spent in your application. This includes problems caused by
JavaScript parsing and execution, layout, CSS style recalculation and
selector matching, DOM event handling, network resource loading, timer
fires, XMLHttpRequest callbacks, painting, and more."
http://code.google.com/webtoolkit/speedtracer