D vs Go in real life, part 2. Also, Erlang.

[Atila Neves]

> It would be interesting to have a GitHub repo with the scripts 
> for each language,

I might set this up after / because of the blog post. We'll see 
how it goes.

>vibe.d also has a multithreaded version that
> is off by default (fibers created from new tcp connections are 
> distributed in a thread pool where communication is done 
> through Isolated!()).

Oh, I know. I tried it. The threads spent more time sending 
messages to each other than doing actual work. And that was 
before I changed the data structure for the subscriptions so it 
did even less work.

The problem (at least with those 2 benchmarks) just isn't 
amenable to be made faster by throwing threads at it. It wasn't 
just the D/vibe.d version. The Go and Erlang versions were tried 
with multiple threads as well. They either stayed at the same 
speed or ran slower.

Atila