One particular way that benefit data can be compared is for the shared memory to contain a single record including the overall benefit for the database having the highest benefit, and if that benefit record does not exist, the first database to look for the benefit data will record that databases {HEAD ~ overall benefit data} in {TAIL ~ the shared memory} 
One particular way that benefit data can be compared is for the shared memory to contain a single record including the overall benefit for the database having the highest benefit , and if that benefit record does not exist , the first database to look for the benefit data will record that databases { HEAD ~ overall benefit data } in { TAIL ~ the shared memory }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL