Computation times

00:00.172 total execution time for 5 files from auto_examples:

Example	Time	Mem (MB)
Knuth Miles (plot_miles.py)	00:00.068	0.0
Star (plot_star.py)	00:00.034	0.0
Attributes (plot_attributes.py)	00:00.027	0.0
Basic (plot_simple.py)	00:00.026	0.0
Subgraph (plot_subgraph.py)	00:00.018	0.0