High performance connection coherency protocol

A request is received, which is to place references in a first agent and ask for a particular line of memory to be harden in an exclusive state. A snoop request is intended for one or more other agents sent. A snoop response is obtained which in a second agent, the snoop response is to attach references to include a write back to the memory of a modified line of the secret bearing, which should correspond to the particular line of memory. A whole is sent to be sent to the first agent, in which the entire data of the special line of intended to include the writeback based memory.