Network traffic configuration method and computer system

A network traffic configuration method and a computer system, the computer system comprising a processing unit and a network module receiving bandwidth configuration, the processing unit running an operating system in which a monitoring control program is executed, the network traffic configuration method running in the operating system, the method in which a system core is started in the operating system, core running information can be obtained from a system core through a monitoring control program so as to obtain information of a plurality of application programs executed in a foreground and a background in an operating system, a priority is determined, network bandwidth configuration is formed and written into a flow control instruction set in the system core or a driving program of a network module, and the flow control instruction set or the driving program of the network module is written into the system core. The operating system can individually execute a traffic configuration for a plurality of app