[IsaacSchlueter]

Sorry if my response was a bit overly strong. I know you're a good guy and we all just want these things to work well. I wasn't offended, just a bit confused by the results that weren't matching what I was seeing.

Of course, poking a bit further showed that converting a 16MB string to a buffer actually is quite expensive. You can avoid this by using buffers directly when you're serving files (or better yet, just pipe a fs.ReadStream directly into the response, so it'll stream it as it reads from disk, and buffer as little as possible.)