[ingrownpsyche]

I wouldn't take random benchmarks on someone's blog particularly seriously. There are many different performance metrics and many different ways to configure your web server and database. Most of the time these things are IO bound in these types of applications. Ultimately it depends on your particular application (which will probably be a little different from "hello world" and so will have a different performance profile). That said, it's not particularly surprising the Go would go faster for most equivalent (the concept of equivalence between programs in different languages is a tricky on itself) programs given it is compiled ahead of time and has complete type information about programs. I would remain a little dubious about the whether the benchmarks involving PHP were really comparing like with like.

My advice is not to sweat it and know that if/when the time comes that there are plenty of options for making things fast such as load balancers, serving static files from another machine, database on a different machine, various kinds of caching (whole page, database level or somewhere in between), tweaking the number of python threads/processes, etc and that you can choose these based on the results of benchmarks. A lot of the time there are big wins to be found in optimising frontend stuff first anyway.