[f2f]

this article discusses how they handled 69GB of heap and up to 6 seconds of pause times:

http://blog.golang.org/qihoo

the new garbage collector in 1.5 should improve things.

[baijum]

More info about GC changes in 1.5:

https://talks.golang.org/2015/state-of-go-may.slide#6 (Slides 6 to 11)

https://golang.org/s/go14gc