Function check_avg

dpdk/app/test/test_red.c:254–269

* check if average queue size is within tolerance */

 *  check if average queue size is within tolerance
 */
static int check_avg(double *diff, double avg, double exp_avg, double tolerance)
{
	double abs_diff = 0.0;
	int ret = 1;

	abs_diff = fabs(avg - exp_avg);
	if ((int)abs_diff == 0) {
	        *diff = 0.0;
	} else {
	        *diff = (abs_diff / exp_avg) * 100.0;
	        if (*diff > tolerance) {
	                ret = 0;
                }
	}
	return ret;
}

/**
 * initialize the test rte_red config