HP PAK Performance Analysis Tools User's Guide

Chapter 2 25
Puma Concepts
How Puma Analyzes Recursive Procedures
lines have 0 as their direct value and 1 as their indirect value, because
those nodes were reached only after traversing recursive stubs. When a
node, such as a at Level 2, is reached directly and then again in the same
stack trace through a recursive stub, the direct arrival counts; that is
why these lines have a direct value of 1.