Earlier quoted context omitted.
> "Handlers are invoked via reflection" That's where I say NO. go's reflect package is slow and a nightmare to use. Go's JSON parser, which uses reflect, is 2.5x slower than Node.js (in my own benchmarks [1]). And Go 1.1 was 3.5x worse that Node.js at parsing JSON. Again, those are my benchmarks, but they seem consistent with what other people are finding (from my Googling around). I would not make this trade off, I…
Your benchmark results look very different from that of the web framework benchmark: http://www.techempower.com/benchmarks/#section=data-r7&hw=i7... In that benchmark Go's JSON performance is almost 3x higher than that of Node. Any reasons why there's such a big difference?
I measured the speed with which Go and Node.js decode/encode JSON, i.e. there is no network and web server involved, just json.Marshal()/json.Unmarshal() vs JSON.parse()/JSON.stringify()
I benchmarked the web server speed separately.