Using trees of resources is building nondeterministic amount of latency into your system. One of my first (after awhile) forays into C++ was to analyze big WFS

Using trees of resources is building nondeterministic amount of latency into your system. One of my first (after awhile) forays into C++ was to analyze big WFST graph to find various statistics. And I found that my program spent as much time freeing resources as doing actual work. Subjectively, of course, yet. I knew it can happen, so it was not big surprise.