In {TAIL ~ the query process} , the respective index tables and {HEAD ~ the identifier table} are used to query whether the target identifier is present in the cache memory at a step  
In
In { TAIL ~ the query process } , the respective index tables and { HEAD ~ the identifier table } are used to query whether the target identifier is present in the cache memory at a step
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH