"In our tests, Go's performance blew away most of the competition."

Since it didn't blow away "all" of the competition, this reader is curious about which other stacks held their ground.

This reader is also curious as to why Erlang wasn't in the competition, since Erlang meets all of the stated requirements (same programming language for backend and frontend systems, fast HTML templating system, fast start-up, modular recompilation, lots of connections on one machine, language tools for handling application-level concurrency, good performance, robust RPC layer to talk between tiers, lots of libraries, and open source). I'm guessing there was an unstated requirement along the lines of "syntax is not weird".