Benchmarks! FPC vs Delphi vs C++

[arthurprs]

someone have the sources of the C++ code?

[Mirage]

These tests are good because they helped me to localize and submit a bug of FPC's optimizer.
If the bug will be fixed it makes sense to compile releases of my demos with FPC instead of Delphi.

[Chebmaster]

someone have the sources of the C++ code?

Somewhere around the Russian forum I posted a link to.
Something like this, if I'm not mistaken:

void build_fractal( int deep, float scale )
{
  int dx, dy; 
  long color;
  float cx, cy, zx, zxt, zy; 

  cy = (height / 2) * scale; 
  for( dy = height - 1; dy >= 0; dy-- ) { 
    cy = cy - scale; 
  cx = (width / 2) * scale; 
    for( dx = width - 1; dx >= 0; dx-- ) { 
      color = 0; 
      // Calculate color 
      cx = cx - scale; 
      zx = cx; 
      zy = cy; 
      while&#40; zx * zx + zy * zy < 4 &#41; &#123; 
        zxt = zx * zx - zy * zy + cx; 
        zy = 2 * zx * zy + cy; 
        zx = zxt;
        color++; 
        if&#40; color > deep &#41; break; 
      &#125;
      pix&#91; dy &#93;&#91; dx &#93; = 4 * color; 
    &#125;
  &#125;
&#125;

[wodzu]

Hi folks, my results(Intel Dual CPU 2180 2 GHz):

FPC double: 7844
FPC double SSE2: 4266
FPC single: 3969
FPC single SSE: 3703
CG RAD Studio 2007 single: 4156
CG RAD Studio 2007 double:5500

new Delphi is not so bad ;-)

If you want to try CGRS2007 EXEcs: http://www.speedyshare.com/969665624.html