gistfile1.c

/*
 * i7-4700MQ Win8.1 : 9533.579865clk
 */

#include <windows.h>
#include <setjmp.h>

#define NUM (4096*8)
volatile int counter = 0;
jmp_buf jbuf;

LONG WINAPI handler(struct _EXCEPTION_POINTERS *exc)
{
    counter++;

    longjmp(jbuf, 1);
}

static void
bench(void)
{
    int *p;
    counter = 0;
    setjmp(jbuf);

    if (counter == NUM) {
        return;
    }

    p = 0;
    *p = 0;
}


int main()
{
    PVOID h;
    int t0, t1;
    h = AddVectoredExceptionHandler(1, handler);

    bench();

    t0 = __rdtsc();
    bench();
    t1 = __rdtsc();

    printf("%f\n", (t1-t0)/(double)NUM);

    RemoveVectoredExceptionHandler(h);
    puts("done");
}