This is a side tangent but seeing graphviz being used here reminded me of this total boss ruby patch: http://cirw.in/blog/find-references http://cirw.in/blog/fi

This is a side tangent but seeing graphviz being used here reminded me of this total boss ruby patch: http://cirw.in/blog/find-references http://cirw.in/blog/find-references I had spent a week slowly isolating this brutal memory leak until being able to see the whole ObjectSpace illuminated my problem.