Gather colored node statistics #12
Description
We need to understand the overhead (memory and runtime) of each color. We should check how many nodes each color has, how many nodes are shared, and how much size does the colored memo take during rebuild. The last one is important to see if we want to hold a memo for a color continually.
We should also collect data on how many black IDs (size of the sets of union_map) each color has (could help with early stopping).