[retendo]

Swift doesn't have a GC. The automatic reference counting is a feature that just inserts retain/release statements at compile time, so there is no additional process that handles that. I would suspect that the performance hits originate from other things.

[cellularmitosis]

I don’t see a lot of utility in policing an overly narrow definition of what constitutes garbage collection.

[frizlab]

ARC is a type of GC though.