Systems and methods for performance and security management of the computing infrastructure that supports an application deployed in a hosted computing environment are described. In one embodiment, for example, a system comprises agents installed on hosts. The agents capture and record system events from operating systems on the hosts that result from application component processes executing on the hosts. The system further includes a collection and analysis engine that obtains captured and recorded system events from the agents, identifies captured and recorded system events that pertain to an application transaction, and produces, from the identified system events, metric data reflecting quantity of computing resources used by the application component processes to process the application transaction. The system also includes a web dashboard that presents the metric data to a user, for example, on a web page.