Performance Ajax Tools
http://www.ibm.com/developerworks/web/library/wa-aj-pertools.html

Myerson, Judith
IBM
2008

Abstract:

Wasting server resources can impact the performance of Ajax applications, resulting in excessive HTTP requests, high memory consumption, and the need for an unusual amount of polling to make applications work. Regular developerWorks author Judith Myerson suggests some open source tools and Firefox add-ons you can use to improve or solve problems with your Ajax applications.