in multiplication pharo is around 2 times slower compared to C++

#include <stdio.h>

int main()

{

�� double x=1;

�� for(double i; i<1000000000 ; ++i)

�� {

�� x = 0.1*i;

�� }

�� return 1;

�� }

time ./testMul

�� 3.13 real �� 3.13 user �� 0.00 sys

time ./pharo Ephestos.image eval "|x| x := 1. 1 to: 1000000000 do:[:each| x := 0.1 * each]"

�� 4.97 real �� 4.48 user �� 0.09 sys

On Sat, Dec 17, 2016 at 2:16 PM Dimitris Chloupis <kilon.alios@gmail.com> wrote:

So I was bored and decided to test how fast pharo is compared to C++.��

so I tested addition��

C++ version:

#include <stdio.h>

int main()
{
�� double x=0;
�� while(x<1000000000)
�� {
�� x = x+1;
�� }

�� return 1;
�� }

��time ./test1
�� 2.84 real �� 2.84 user �� 0.00 sys

Pharo version:

time ./pharo Ephestos.image eval "|x| x := 0. 1 to: 1000000000 do:[:each| x := x +1]"
1
�� 2.09 real �� 1.94 user �� 0.08 sys

Pharo is��+50% faster than C++ ... o_O ... that's suprising, I assume here Pharo VM probably does some kind of optimisation.��