}
else {
// microseconds has the time since the last collection
+#ifdef NETDATA_INTERNAL_CHECKS
usec_t now_usec = timeval_usec(&now);
usec_t last_usec = timeval_usec(&st->last_collected_time);
+#endif
usec_t since_last_usec = dt_usec(&now, &st->last_collected_time);
// verify the microseconds given is good