Benchmark Dlang vs Node vs Ruby

[Rene Zwanenburg via Digitalmars-d-learn]

On Friday, 27 May 2016 at 13:45:23 UTC, llaine wrote:
> Hi guys,
>
> In my journey of learning about D I tried to benchmark D with 
> Vibe.d vs node with express and Ruby with Sinatra.
>
> And the results are pretty surprising.
> I have to admit that I though D was more faster than that. How 
> is this even possible ?
>
> I am doing something wrong ?
>
>
> Here are the numbers with the project :
>
> https://github.com/llaine/benchmarks/blob/master/README.md

Could this line be the problem?
https://github.com/llaine/benchmarks/blob/master/vibed/source/app.d#L30

You keep appending the db result to a class member, so the 
response size grows with every call.

Additionally minimizing allocations should give a nice speed 
boost.