Thank you for provide unbound support. I just create this issue to evaluate the possibility to extend data collected and graphed from unbound.
unbound hits - base volume, cache hits, unwanted traffic
unbound_queue - to monitor the internal request list
unbound_memory - memory usage
unbound_by_type - incoming queries by type
unbound_by_class - incoming queries by class
unbound_by_opcode - incoming queries by opcode
unbound_by_rcode - answers by rcode, validation status
unbound_by_flags - incoming queries by flags
unbound_histogram - histogram of query resolving times
All these data already get in script, but not graphed.