The snooping protocol utilizes the duality of directories coupled with the non atomicity of {HEAD ~ directory updates} to maximize processor cache availability and minimize {TAIL ~ processor cache access times} thus supporting high performance architectures 
The snooping protocol utilizes the duality of directories coupled with the non atomicity of { HEAD ~ directory updates } to maximize processor cache availability and minimize { TAIL ~ processor cache access times } thus supporting high performance architectures
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH