There are 2 features I’m really excited about in this release. The first is the improved GC. My go servers have rather large heaps and see large GC pauses currently. Single digit millisecond gc pauses will be amazeballs.
I’m also totally geeking out on the new tracing tools. I think this will allow us to get some pretty sweet flame graphs out of our go programs. Check out Dmitry’s original proposal here: https://docs.google.com/document/d/1FP5apqzBgr7ahCCgFO-yoVhk4YZrNIDNf9RybngBc14/pub