static const char *bytes_per_sec_human_dnum(void)
{
	if (starttime == (time_t)-1 || endtime == (time_t)-1)
		return "UNKNOWN";
	return human_dnum((total_written + total_read) / (0.5 + (endtime - starttime)), 2);
}
static const char *bytes_per_sec_human_dnum(void)
{
	if (starttime == (time_t)-1 || endtime == (time_t)-1)
		return "UNKNOWN";
	return human_dnum((total_written + total_read) / (0.5 + (endtime - starttime)), 2);
}