D's exception cost (happy path) is large than G++

[redsea]

D 1.018

loop 8G times, without try/catch

real    0m24.452s
user   0m23.911s
sys     0m0.005s

loop 8G times, with try/catch
real    0m31.455s
user   0m30.749s
sys     0m0.008s

add 28.6% cost
----------------
g++  (gcc version 4.1.3 20070812 (prerelease) (Debian 4.1.2-15)
loop 8G times, without try/catch

real    0m20.971s
user   0m20.623s
sys     0m0.004s

loop 8G times, with try/catch
real    0m24.481s
user   0m23.949s
sys     0m0.004s

add 16.7% cost

-------------------
D's cost is larger.


-------------------
code:
D:

module test;

import tango.io.Stdout;

int turn=0;
int count;


void fooFunc()
{
    ++ count;
};

alias void function() foo_t;


void test(int c1, int c2, foo_t foo)
{
    for (int j=0;j<c1;j++)
    {
        ++ turn;
        count = 0;
        for (int i=0;i<c2;i++)
        {
            try
            {
                foo();
            }
            catch (Exception e)
            {

            }
        }
    }

    Stdout("\nturn ")(turn)(" count ")(count);

}


int main()
{
    test(8*1024, 1048576, &fooFunc);
    return 0;
}

compile with -O -release -inline

no catch version, comment the try & catch line
-------------------
code:
c++

#include <stdio.h>
#include <exception>

volatile int turn=0;
volatile int count;


void fooFunc(void)
{
    ++ count;
};

typedef void (*foo_t)(void);


void test(int c1, int c2, foo_t foo)
{
    for (int j=0;j<c1;j++)
    {
        ++ turn;
        count = 0;
        for (int i=0;i<c2;i++)
        {
            try
            {
                foo();
            }
            catch (std::exception &e)
            {

            }
        }
    }

    printf("\nturn %d, count %d", turn, count);

}


int main()
{
    test(8*1024, 1048576, fooFunc);
    return 0;
}

compile with -O2
no catch version, comment the try & catch line