[bpicolo]

Are the big monorepo companies actually waiting for global test suite completion for every change? I'd doubt that, I'm sure they're using intelligent tools to figure out what tests to actually run. Compute for testing is massively expensive at that scale so it's an obvious place to optimize

[puzzle]

Google's build and testing system is smart in which tests to run, as you suspect, but it still has a very, very large footprint.

[bpicolo]

Right. My point is that the monorepo almost certainly isn't a problem in this regard.