1. A computer system for implementing a coherence protocol, the system comprising: a memory; and a processor, communicatively coupled to said memory, the computer system configured to perform a method comprising: sending a request for data to a remote processor; receiving, by the processor, a response from the remote processor, the response including a transaction status of a remote transaction on the remote processor; and adding, by the processor, the transaction status of the remote transaction on the remote processor in a local transaction interference tracking table.