#include <sys/time.h>
#include <stdlib.h>
#include <stdio.h>

double now() {
	struct timeval tv;
	gettimeofday(&tv, NULL);
	return tv.tv_sec + (tv.tv_usec / 1e6);
}

#define NITER 100000000
#define XSIZE 4096

int main() {
	char *data;
	int *d;
	unsigned i, a;
	double t1, t2;


	data = malloc(2*XSIZE);

	printf("aligned data is at %p\n", data);

	d = (int*)data;
	t1 = now();
	for (i = 0; i < NITER; i++) {
		(*d)++;
		d++;
		if (i % 1024 == 0)
			d = (int*)data;
	}
	t2 = now();
	printf("aligned: %0.1f ops/s\n", NITER / (t2-t1));

	data++;
	d = (int*)data;
	t1 = now();
	for (i = 0; i < NITER; i++) {
		(*d)++;
		d++;
		if (i % 1024 == 0)
			d = (int*)data;
	}
	t2 = now();
	printf("unaligned: %0.1f ops/s\n", NITER / (t2-t1));
}