Size of Compiled Program

Martin Tschierschke via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Mon Jan 4 08:52:37 PST 2016


On Monday, 4 January 2016 at 14:16:54 UTC, Marc Schütz wrote:
> On Monday, 4 January 2016 at 13:49:03 UTC, Martin Tschierschke 
> wrote:
>> When I was writing a small speed test - D versus Ruby,
>> calculating the first n prime numbers, I realized, that for 
>> small n
>> Ruby may be faster, than compiling and executing with D.
>> But for n = 1,000,000 D outperforms Ruby by app. 10x.
>>
>> Looking at the size of my prime executable, it was around 800 
>> kB with DMD
>> and even with optimization and "gdc -Os" > 1 MB.
>> Why is such a short program resulting in a so big binary?
>
> That's probably basic these compilers statically link the 
> runtime (and standard?) libraries by default. Compiling your 
> program with `ldc2 -O3`, I get a binary of 28K, and stripping 
> gets it down to 17K.

Ok, I will try ldc2, too.


More information about the Digitalmars-d-learn mailing list