// Quick and dirty hack to measure a system's memory speed

#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>

// How big of a chunk of memory to move around
// 50 megs.. I think..
#define MEM_SIZE 1024*5000


unsigned long long c;

void sig_alrm(int x) {
	printf("%llu\n", c);
	exit(0);
}

int main() {
	char *p, *p2;
	
	signal(14, sig_alrm);
	alarm(10);

	p = malloc(MEM_SIZE); 
	p2 = malloc(MEM_SIZE);

	for(c=0;;c++) {
		memcpy(p, p2, MEM_SIZE);
		memcpy(p2, p, MEM_SIZE);
	}
}