DM linker vs GCC linker?

[Martin Nowak]

On Wed, 18 Jan 2012 16:00:05 +0100, Andrea Fontana <advmail at katamail.com>  
wrote:

> This param:
> --Xlinker --export-dynamic
>
> slows down the entire app (check() std.xml function) by 29x on test.
>
> Is it useful to add it on default config? Probably if you use external
> dl, you should add it...
>
> andrea at ububox:~/src/xml-test$ dmd -c test.d && gcc test.o -o testgcc2
> -m64 -Xlinker --export-dynamic -Xlinker --no-warn-search-mismatch
> -lphobos2 -lpthread -lm -lrt
> andrea at ububox:~/src/xml-test$ time ./testgcc2 cities.xml
>
> real	3m23.426s
> user	3m22.901s
> sys	0m0.276s
>
> andrea at ububox:~/src/xml-test$ dmd -c test.d && gcc test.o -o testgcc2
> -m64 -Xlinker --no-warn-search-mismatch -lphobos2 -lpthread -lm -lrt
> andrea at ububox:~/src/xml-test$ time ./testgcc2 cities.xml
>
> real	0m7.433s
> user	0m7.316s
> sys	0m0.112s
>
> Il giorno mer, 18/01/2012 alle 15.43 +0100, Trass3r ha scritto:
>
>> > dmd -c test.d && gcc test.o -lphobos2 -lrt -lpthread -o testgcc
>> > vs
>> > dmd -c test.d && dmd test.o -oftestd
>>
>> Well dmd test.d calls
>> gcc test.o -o test -m64 -Xlinker -L/dmd/linux/lib64 -Xlinker
>> -L/dmd/linux/lib32 -Xlinker --no-warn-search-mismatch -Xlinker
>> --export-dynamic -lphobos2 -lpthread -lm -lrt
>
>
Do you have a lot of exceptions being thrown in your code?