Information processing apparatus, computer-readable recording medium storing overload control program, and overload control method

A non-transitory computer-readable recording medium storing an overload control program for causing a network interface card coupled to a computer to execute processing, the network interface card including a first processor and a network switch, the computer including a processor, the processing comprising:

• recording, by the first processor of the network interface card, for each application of a plurality of applications executed in the processor of the computer, communication information indicating a communication destined to the each application;
• comparing, in a case where a use rate of the first processor is overloaded, based on the recorded communication information, a load on each of the plurality of network functions executed in the first processor, each of the plurality of network functions being a software process executed in the first processor and configured to process the communication destined to among the plurality of applications a corresponding application indicated by a flow rule of the network switch;
• in response to a comparison result obtained by the comparing, selecting, by the first processor of the network interface card, from among the plurality of network functions, a network function having the smallest load;
• and
• switching an execution position of the selected network function from the first processor to the processor of the computer by changing the flow rule of the network switch, to thereby cause the processor to execute processing of the selected network function.

A computer-implemented overload control method performed by a network interface card coupled to a computer, the network interface card including a network switch and a first processor, the computer including a processor, the method comprising:

• recording, by the first processor of the network interface card, for each application of a plurality of applications executed in the processor of the computer, communication information indicating a communication destined to the each application;
• comparing, in a case where a use rate of the first processor is overloaded, based on the recorded communication information, a load on each of the plurality of network functions executed in the first processor, each of the plurality of network functions being a software process executed in the first processor and configured to process the communication destined to among the plurality of applications a corresponding application indicated by a flow rule of the network switch;
• in response to a comparison result obtained by the comparing, selecting, by the first processor of the network interface card, from among the plurality of network functions, a network function having the smallest load;
• and
• switching an execution position of the selected network function from the first processor to the processor of the computer by changing the flow rule of the network switch, to thereby cause the processor to execute processing of the selected network function.