$ julia --project=examples/ -e 'using BenchmarkTools; using MetagraphOptimization; parse_abc("input/AB->AB.txt"); @time g = parse_abc("input/AB->ABBBBBBBBB.txt")'
65.370947 seconds (626.10 M allocations: 37.381 GiB, 53.59% gc time, 0.01% compilation time)
Removing make_edge from calls in parse:
50.053920 seconds (593.41 M allocations: 32.921 GiB, 49.70% gc time, 0.09% compilation time)
Nodes operation storage rework (and O3):
31.997128 seconds (450.66 M allocations: 25.294 GiB, 31.56% gc time, 0.14% compilation time)