I created a fork which has callgraph support. The changes to the current code are minimal- menu implementation, one callgraph function, and one line xhprof.inc. The rest are new files. Some of these files should probably be integrated with the existing ones in the module. The callgraph code could be improved a fair bit. https://github.com/arthur24b6/Drupal-XHProf
Needs review
1.0
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