is D so slow?

[Dave]

> 
> If you use malloc, the default initialization does not take place, the 
> memory is normally either initialized to 0, or left uninitialized (with 
> values that likely are not NaN).
> So your program is fast with malloc, but in fact all this is due to a 
> bug in the program that you are benchmarking, and using malloc is not 
> the correct solution, the solution is to initialize all the values that 
> you use.
> 
> Fawzi
>

Good catch...