System and method for implementing cache sharing

A system for implementing cache sharing, comprising:

• a main controller, a plurality of service processing units, and a shared cache unit connected with the main control unit and the plurality of service processing units respectively;
• wherein the main controller transfers control information to the plurality of service processing units through a control channel, and the plurality of the service processing units transfer service data between each other through a service channel;
• the main controller and the plurality of the service processing units are respectively configured with memories;
• the shared cache unit is adapted to implement cache sharing and comprises:
• a high-speed interface, respectively connected with the main control unit and the plurality of the service processing units, adapted to receive operation requests on the shared cache unit;
• a high-speed cache, adapted to provide a cache space and store data at a high-speed;
• and
• a cache controller, connected between the high-speed interface and the high-speed cache, adapted to:
• according to the operation requests on the shared cache unit, implement an operation on the high-speed cache to realize the cache sharing.