I thought I would try in under Ubuntu Linux 6.06 (kernel 2.6.15-25).
I have a daul-boot setup, so it is the exact same pc specs and same
FPC compiler version.
Again no change between compiles.
Regards,
- Graeme -
On 6/25/06, Graeme Geldenhuys <[EMAIL PROTECTED]> wrote:
No change here.. My default compiler settings is as follows:
<CONFIG>
<Compiler Value="C:\FPC\2.0.2\bin\i386-win32\ppc386.exe" Date="863670948"/>
<Params Value=" -S2ci -OG1 -gl -vewnhi -l -Fu.
-oC:\Temp\t3\fpcBench.exe fpcBench.lpr"/>
</CONFIG>
I have tried the new code as you mention, also tried different
performance compiler settings, and it make no difference here. The
elapsed time is always the same.
My system specs:
Dell Inspiron 9100 (laptop)
CPU: P4 3000Mhz
Mem: 512Mb
Regards,
- Graeme -
On 6/25/06, Al Boldi <[EMAIL PROTECTED]> wrote:
> Graeme Geldenhuys wrote:
> > > Commenting 'x: double = 0;' reduces performance 333%.
> > > Any ideas what's going on?
> > > And can somebody confirm this on other platforms?
> >
> > I tried it under Win2000 with FPC 2.0.2 and don't get any change.
> > Both attempts resulted in the same answer. Elapsed: 78
>
> Thanks for trying that!
>
> What switches did you use?
>
> Can you try with this switch: "ppc386 -gl fpcBench"
>
> And can you also try this one with no switches:
>
> program fpcBench;
>
> {$mode objfpc}{$H+}
>
> { $APPTYPE CONSOLE}
>
> uses
> SysUtils;
>
> procedure fn;
> var
> x: double = 0;
> i: double = 9999999;
> startTime: TDateTime;
>
> begin
>
> startTime := Now;
>
> while (i > 0) do i := i - 1;
>
> Writeln('Elapsed: ' + IntToStr(DateTimeToTimeStamp(Now - startTime).Time));
>
> end;
>
> begin
> fn;
> write;
> end.
>
> Thanks a lot!
>
> --
> Al
>
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