script = ms 1130
shared library = ms 1300
--- Dom 3/6/12, Emil Lenngren <emil.lenng...@gmail.com> ha scritto:
> Da: Emil Lenngren <emil.lenng...@gmail.com>
> Oggetto: Re: [Gambas-user] "shared library" (with inline assembler code) is
> slow...
> A: "mailing list for gambas users" <gambas-user@lists.sourceforge.net>
> Data: Domenica 3 giugno 2012, 01:54
> ... And how big is the difference if
> you put in 2 billion instead? :)
>
> 2012/6/3 Ru Vuott <vu...@yahoo.it>
>
> > Excuse me, Emil, I have written a mistake:
> > well, if I send 1 billion with script in terminal, I
> receive about: ms 570
> >
> > with shared library in gambas I confirm about. 655
> >
> >
> > Difference: ms 100
> >
> >
> >
> >
> > --- Dom 3/6/12, Emil Lenngren <emil.lenng...@gmail.com>
> ha scritto:
> >
> > > Da: Emil Lenngren <emil.lenng...@gmail.com>
> > > Oggetto: Re: [Gambas-user] "shared library" (with
> inline assembler code)
> > is slow...
> > > A: "mailing list for gambas users" <gambas-user@lists.sourceforge.net>
> > > Data: Domenica 3 giugno 2012, 01:10
> > > What happens if you put 2 billions
> > > instead?
> > >
> > > 2012/6/3 Ru Vuott <vu...@yahoo.it>
> > >
> > > > If I run that code via script in my Terminal,
> passing
> > > to it a value of 1
> > > > billion (it has to count from 0 to 1
> billion), I have a
> > > result about 60
> > > > millisecond.
> > > > If I create a shared library, and I use it in
> Gambas
> > > (...passing 1
> > > > billion...), in gambas console I have about
> 655
> > > millisecond !!! :-O
> > > >
> > > > ...I do not understand why....
> > > >
> > > >
> > > >
> > > >
> > > > --- Dom 3/6/12, Emil Lenngren <emil.lenng...@gmail.com>
> > > ha scritto:
> > > >
> > > > > Da: Emil Lenngren <emil.lenng...@gmail.com>
> > > > > Oggetto: Re: [Gambas-user] "shared
> library" (with
> > > inline assembler code)
> > > > is slow...
> > > > > A: "mailing list for gambas users" <
> > gambas-user@lists.sourceforge.net>
> > > > > Data: Domenica 3 giugno 2012, 01:02
> > > > > Is the function itself slow or is it
> > > > > slow because of the call overhead of
> > > > > libffi?
> > > > >
> > > > > /Emil
> > > > >
> > > > > 2012/6/3 Ru Vuott <vu...@yahoo.it>
> > > > >
> > > > > > Hello Benoit,
> > > > > >
> > > > > > simply for a test I've made this
> simple C
> > > "shared
> > > > > library" .so (with
> > > > > > inline assembler code). I noted
> that if I use
> > > it from a
> > > > > Gambas program
> > > > > > (with Extern) it's very slow. Why?
> > > > > >
> > > > > > static unsigned int car
> asm("raxregistro");
> > > > > > static unsigned int cbr
> asm("rbxregistro");
> > > > > > int hello(int numero) {
> > > > > > cbr=numero;
> > > > > > asm("mov rbxregistro(%rip),%eax");
> > > > > > asm("ciclo:");
> > > > > > asm("dec %eax");
> > > > > > asm("jne ciclo");
> > > > > > asm("mov %eax,raxregistro(%rip)");
> > > > > > return car;
> > > > > > }
> > > > > >
> > > > > > Bye
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
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