#ifdef hpux
#define _INCLUDE_POSIX_SOURCE
#endif
#include <sys/types.h>
#include <stdio.h>
#include <signal.h>
#ifdef hpux
#include <sys/sysinfo.h>
#endif

/* MIPs is guestimated by incrementing a counter in a for loop
   for one second, and multiplied by 10 (guess of # instructions).
   Because of the alarm firing as a signal, the loop condition
   must be in non-cached memory. So this will affect some architectures
   differently.
   Also don't compile optimized, as the loop may go away entirely!
*/
volatile int elapsed = 0;
void bang(int sig) {
        elapsed = 1;
}
void main() {
        int ips = 0;
#ifdef hpux
/* It was hoped that there may be some HP info available in here. Sadly...*/
        struct sysinfo sib, *si = 0;

        si = get_sysinfo (&sib);

        if (!si) si = &sib;

        printf("cpu=%d, proc_cnt=%d, max_proc_cnt=%d, syscall=%d\n",
                si->cpu, si->proc_cnt, si->max_proc_cnt, si->syscall);
#endif
        sleep(1); /* to synchronize the clock ! */
        signal(SIGALRM, bang);
        alarm(1);
        for (ips = 0; elapsed == 0; ips++)
                ;
        printf("Processor speed = %2.2f MIPs! :-) \n",
                ( (double)ips * 10 /*fudge*/)/1000000.0);
}