Comment by ngrilly

If you are interested by this topic, here is a relevant discussion on golang-nuts: https://groups.google.com/d/topic/golang-nuts/KJiyv2mV2pU/di...

One of the arguments mentioned against having a generational GC is that it would make concurrent GC with low latency harder (because Go permits interior pointers, unlike Java) and slower (because Go only needs write barrier, unlike Java which needs read barrier as far as I know).