gistfile1.c

/*
 * i7-4700MQ Win8.1 : 9533.579865clk
 * i7-4700MQ Linux 3.11.4-201.fc19.x86_6 : 1815.603760
 */

#include <signal.h> 
#include <setjmp.h>
#include <x86intrin.h>
#include <stdio.h>

#define NUM (4096*8)
volatile int counter = 0;
sigjmp_buf jbuf;
 
void handler(int n)
{
    counter++;
 
    siglongjmp(jbuf, 1);
}
 
static void
bench(void)
{
    int *p;
    counter = 0;
    sigsetjmp(jbuf, 1);

    if (counter == NUM) {
        return;
    }
 
    p = 0;
    *p = 0;
}
 
 
int main()
{
    int t0, t1;
    signal(SIGSEGV, handler);
    perror("signal");

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