Startup time doesn’t seem to be factored in correctly, so any language that uses a bytecode (e.g. Java) or is compiling from source (e.g. Ruby, Python, etc.) will look poor on this. If the kids of applications that you write are ones that exit after a fraction of a second, then sure, this will tell you something. But if you’re writing server apps that run for days/weeks/months, then this is useless.