Call graph data displays in business transaction snapshots as well as process snapshots.

When you view a business transaction snapshot, the displayed call graph specific to the transaction instance is derived from the concurrent process snapshot call graph.

When you view a process snapshot, the complete call graph of all the business transactions executed while the process snapshot was captured is displayed.

The call graph in a business transaction snapshot displays a view of the data from a concurrent process snapshot that is filtered to display only time in methods attributable to the specific business transaction. It is a subset of the concurrent process snapshot call graph.

For this reason, you might see an execution time for a method in a business transaction call graph that is less than the execution time for the same method in the concurrent process snapshot call graph. This would indicate that some calls to that method were made outside the context of the business transaction instance captured by the transaction snapshot.

The summary tab of a transaction snapshot includes a link to the process snapshot that was taken during the time covered by the transaction snapshot.