A method, system, and apparatus to hardware initiated throughput (HITM) measurement inside an OCP system using OCP side band signals are disclosed. In one embodiment, a system of an integrated circuit includes a signal line located in the integrated circuit to communicate an electrical signal, a receiver circuit located in the integrated circuit coupled to the signal line, a transmitter module located in the integrated circuit to communicate a data stream to the receiver circuit through the signal line, and a throughput monitor circuit coupled to the signal line to measure a throughput value during a communication period of the data stream from the transmitter module. The system may include a processor module located in the integrated circuit configured to interrupt an operation of the transmitter module and a receiver module if the throughput monitor circuit generates the interrupt signal.