I've been using Go for a while, and am frankly amazed at the quality of the tooling. I'll add something others haven't mentioned... the profiler produces an ab

I've been using Go for a while, and am frankly amazed at the quality of the tooling. I'll add something others haven't mentioned... the profiler produces an absolutely amazing graph of the run-time call tree[0]. This makes it incredibly easy to not only see where the code is spending its time, I can easily the context, and where else time is being spent. I recently sped some code up (5x!) using this. 0: https://blog.golang.org/profiling-go-programs https://blog.golang.org/profiling-go-programs