Go is getting a fully precise GC in the next release apparently: http://talks.golang.org/2014/go1.3.slide#4 http://talks.golang.org/2014/go1.3.slide#4 Also, th

Go is getting a fully precise GC in the next release apparently: http://talks.golang.org/2014/go1.3.slide#4 http://talks.golang.org/2014/go1.3.slide#4 Also, the default Go compiler essentially has no optimiser at all, just some weak inlining + a language designed to be easy to compile directly to non-horrible machine code without much effort. GCCGo will be much faster.