Method and system for combining trace data describing multiple individual transaction executions with transaction processing infrastructure monitoring data

A computer-implemented method for monitoring performance of an application executing on a host computing device, comprising:

• generating, by a transaction agent instrumented in the application, a transaction event caused by execution of the application, where the transaction event includes an identifier for the host computing device, an identifier for an execution thread that caused the transaction event, and at least one transaction metric indicative of application performance;
• sending, by the transaction agent, the transaction event across a network to a server computer located remotely from the host computing device;
• generating, by a process agent executing on the host computing device, a process event, where the process agent is associated with a process that at least partially executed the application and the process event includes an identifier for the host computing device, an identifier for the process agent and at least one process metric indicative of utilization of a computing resource of the host computing device caused solely by execution of the application;
• sending, by the process agent, the process event across the network to the server computer;
• and
• correlating, by an analyzer residing on the server computer, the transaction event with the process event using the identifier for the host computing device.

A computer-implemented system that monitors transaction execution in a distributed computing environment, comprising:

• a transaction agent instrumented in an application residing on a host computer and executed by a processor of the host computer, the transaction agent generates one or more transaction events caused by execution of the application and sends the transaction events across a network to a monitoring computer, each transaction event includes an identifier for the host computer, an identifier for an execution thread that caused the transaction event and at least one transaction metric indicative of performance of the application;
• a host agent residing on the host computer and executed by a processor of the host computer, the host agent generates one or more host events and sends the host events across the network to the monitoring computer, each host event includes the identifier for the host computer and at least one host metric indicative of utilization of a computing resource of the host computer during execution of the application;
• and
• a monitor configured to receive a transaction event and a host event from the host computer and correlate the transaction event with the host event using the identifier for the host computer, where the monitor resides on the monitoring computer and is executed by a processor of the monitoring computer.