I think you are thinking of B::Xref. xref.pl, part of GraphViz-2.02, can use the output from B::Xref to generate a nice call graph.
The reader interested in doing profiling with graphical output would also benefit from reading Creating Perl Code Graphs by brian_d_foy.
HTH,
In reply to Re^2: Auto documentation
by planetscape
in thread Auto documentation
by sanPerl
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