SlowGrowl

Rails 3 plugin which surfaces slow code paths in your Rails application by integrating with the new Notifications API in Rails 3 with your system Growl (OSX) or libnotify (Linux) notification service. By default, any activity which takes longer than one second, will generate a growl alert, with the description of the action, time taken, and other meta data. A preview in action:


http://github.com/igrigorik/slowgrowl