Hi there,

sounds like your protocols aren’t consolidated - I’m not 100% sure but it may be that you have protocols defined in .exs files and hence they aren’t consolidated? There is some more information here: Protocol — Elixir v1.16.1

benchee checks all protocols for consolidation: benchee/lib/benchee/system.ex at d1228710390ee9d871a7b31e8e458a4b334c7790 · bencheeorg/benchee · GitHub

Maybe you’ve also disabled it in test (as mentioned in the article there).

It’s hard to tell without a code base to access. Right now that warning message can’t be deactivated as it’s one of our “hard warnings” I’d say. Might be persuaded to add a deactivation for it, but generally speaking all protocols should be consolidated for benchmarking.

I went to check that, and guess what, I had this in my mix.exs:

consolidate_protocols: Mix.env() != :test

I did not go there before because I don’t remember to have added that myself to the mix.exs file.

Perhaps this is some default added when the project was created some time ago?

Thanks a lot people!!

The link to the Elixir docs shows that usually projects disable protocol consolidation in the test env – have you checked if that’s true for your project?