[pcwalton]

I think it's likely that Golang apps won't stress the GC as much as Java does, because of the simple fact that you can't realistically use j.u.c-style concurrent data structures, since you don't have generics. Where the JVM GC really shines is when you're using shared-memory concurrent data structures, which are really great things—however, without generics, programmers just won't use them in the first place.

(I'm not saying this is a negative for Java, BTW; making shared memory data structures both fast and idiomatic is really important if you care about performance of parallel code.)

[pron]

Why do you think generics are more relevant for concurrent data structures?

[pcwalton]

Because "programs don't need more than one type of dictionary, so the language can just hard code one implementation in" is at least a defensible position in a single-threaded setting (although I don't agree with it), but it definitely isn't in a scalable parallel setting.

[justthistime_]

Yeah. Go. The concurrent language with a single, mutable, thread-unsafe dictionary implementation.