Forensics is the practice of using scientific and empirical data to explain the cause of an incident. Forensics can applied to the world of software application management from the context of explaining performance and scalability issues. This workshop is designed to introduce application owners how to troubleshoot performance and/or scalability issues using a core set of open source tools. During last year's BbWorld, our presenter introduced a methodology and a teaser of tools to perform forensics. Since that time a slew of new tools and practices have come out and will be covered. This workshop will run through a series of common case studies often seen in the field affecting performance and/or scalability and will demo a series of tools to explain the causes of the issues. The goal of this session is to dissect performance and a scalability issues end to end from client browser/desktop all the way to the server. Foundations of forensics and the methodology used to tool sets will be covered as well.