Transaction-segregated metrics are obtained for component invocations of different transactions of an application. Corresponding tree data structures are maintained by an agent and a manager which describe sequences of invoked components of the different transactions. The start and end of each component are each represented by a node in each branch of the tree data structure. Each transaction is identified by matching a branch to a transaction trace. Gatherers are linked to one or more nodes to collect the transaction-segregated metrics. For example, metrics can be gathered separately for component invocations in different transactions. Metrics can also be gathered together for instances of different components in one or more transactions. A user interface includes a directed graph having vertices connected by edges. Edge portions are visually distinguished from one another based on the metrics of the gatherers. Each edge portion can be associated with one or more of the gatherers.