If you find yourself needing to troubleshoot Builder (hopefully just during our development cycles) you can now run the command “counters” from the command bar (Ctrl+Enter). This gives you access to some internal counters.
You can get these out of process too, using dazzle-list-counters PID which cracks open the shared memory page and dumps the counters.
As you might imagine, the counters are in libdazzle now so you can have the same sort of feature in your (C-based) applications quite easily.