Introduction

GWTs Lightweight Metrics is a great mechanism to instrument and capture data, but including it in a project is cumbersome. GWT Metrics plugs into the lightweight metrics system, collates the data, and reports it either in firebug or in a YUI Log Console. Since its just a javascript file, it can be loaded via a Bookmarklet. This makes it possible to see metrics on any GWT website without changing a single line of code.

Bookmarklet Installation

Standalone Installation

The bookmarklet installation has limitations - its difficult to see the metrics generated at startup. To get around that, place the following two lines of code in your host html file just before your module.nocache.js script tag.

<script type="text/javascript" language="javascript" src="http://degwt.googlecode.com/svn/trunk/static/js/gwtmetrics.js"></script>
<script>gwtmetrics('firebug');</script>

You should include these two lines only during development and testing. Also, you may want to save the javascript file locally.