Transmission method and device of high-speed cache consistency information

The invention provides a transmission method and device of high-speed cache consistency information. The method comprises the steps that according to a HyperTransport protocol, reading orders used in high-speed cache consistency information transmission of a NONPOST channel of the HyperTransport protocol are determined, a POST channel is used for transmitting writing orders in the high-speed cache consistency information, a RESPONSE channel is used for transmitting reading responses in the high-speed cache consistency information, and a newly-added BRESPONSE channel is used for transmitting writing responses in the high-speed cache consistency information; and at least one kind of the reading orders, the writing orders, the reading responses and the writing responses are transmitted on a corresponding channel of the HyperTransport protocol. According to the technical scheme, blocking of the reading responses and the writing responses on a transmission channel is avoided, and the transmission efficiency of the reading responses and the writing responses is improved.