[earthboundkid]

I feels like I must be missing something. 3ms is extremely slow. Surely it should be 3us, no? What’s it doing that is so slow?

[flohofwoe]

Function names like "_dyld_find_protocol_conformance" seem to indicate that DLLs might need to be accessed, and my (entirely subjective) impression is that this general area seems to have become a lot slower in recent macOS versions, at least when system DLLs are involved.

[sond813]

It’s ms, that slow because every protocol conformance in every dylib needs to be checked. When this gets to 100k+ like in many large apps it takes multiple milliseconds