Again, ask help with Dlang program footprint

[dangbinghoo]

On Saturday, 9 April 2022 at 02:56:50 UTC, dangbinghoo wrote:
> On Saturday, 9 April 2022 at 02:19:52 UTC, dangbinghoo wrote:
>> On Friday, 8 April 2022 at 03:26:29 UTC, dangbinghoo wrote:
>>> On Friday, 8 April 2022 at 03:20:29 UTC, dangbinghoo wrote:
>>>> [...]
>>>
>>> PS: I need the program link Phobos statically, don't want to 
>>> use .so except the basic C library. so I added option 
>>> `-link-defaultlib-shared=false` in dub.json by default, this 
>>> should not be changed.
>>
>> hi, please help with this, can we reduce the footprint?
>>
>> thanks!
>
> OK, I just put on another git repo, which is the simpley 
> helloworld in D, and it
> generates 849KB for print a single line!
>
> https://github.com/dangbinghoo/hello_world_d
>
> so, maybe there's something wrong with D compiling?
>
>
> thanks!

OK, talked in Discord.

answer is clear: 1. D runtime is about 400KB on amd64 stripped. 
2. phobos is set of big templates, writeln is expensive.
betterC print a helloworld only costs 6.3KB stripped.




thanks!