[yoden]

If you don't mind me asking, How long does a CI run take for you? How do you manage running CI with so many merges?

Our CI takes ~8 hours of machine/VM time, which is about 35 minutes of wall time with our current testing cluster (including non-distributed parts like building). We skip certain long tests during the day, so that brings wall time down to ~13 minutes. But we also test 2-3 branches with decent churn. So even if we're only doing post-merge CI based on the current state of master, we're still getting 5+ commits fairly often.

I want to get to a world where CI is run before and after each merge with master, on every commit (or push/pull), but it seems like it would take so much more resources and infrastructure than we currently have.