Runtime?

[Moritz Maxeiner via Digitalmars-d]

On Wednesday, 24 May 2017 at 07:54:04 UTC, Wulfklaue wrote:
> Great ... accidentally pressed send.
>
> So my question was:
>
> Why does even a simple empty empty statement like this, 
> compiled with DMD, show under windows a almost 1.7MB memory 
> usage?

Because the garbage collector (GC) allocates a sizable chunk of 
memory from the operating system at program startup, from which 
it then in turn allocates memory for you when you use things like 
dynamic closures, `new XYZ`, etc.

>
> void main()
> {
>   while(true){}
> }
>
> The same in C/C++ is simply 0.1MB. This is why i asked the 
> question if the runtime is somehow responsible?

Yes, it is. It is the price we have to pay for having a GC. If 
the overhead bothers you, you might want to compare it with other 
garbage collected languages (such as Go).

PS: This might belong in Learn, instead of General.