Information-processing device, processing method thereof, and input/output device

A processing method of an information processing device having a processor, a memory, and an input/output device which receives a processing starting instruction from the processor, comprising:

• checking whether a preceding processing instruction is completed by an interrupt signal from the input/output device, and dispatching the processing start instruction if a value of the preceding processing instruction which has not been completed is less than a predetermined number;
• transmitting, by the processor, an the interrupt signal as notification of completion of the processing to the processor after a standby of a certain period of time before a transmission of the interrupt signal as a notification of the completion of processing;
• and
• further extending the certain period of time of standby for transmission of the interrupt signal to the processor when the processing starting instruction is received from the processor during the standby for the certain period of time,
• wherein the input/output device receives a plurality of instructions of processing from a plurality of cores of the processor, and the input/output device detects a plurality of the processing starting instructions in response to the plurality of the instructions of processing, and
• wherein, in a case where the processing starting instruction of the plurality of the processing starting instructions is detected, the certain period of time until the notification to the processor is performed is further extended.

An input/output device which receives a processing starting instruction from a processor with a memory, the input/output device configured to:

• transmit an interrupt signal as notification of completion of processing received from the processor;
• standby for a certain period of time before transmission of the interrupt signal as notification completion of the processing to the first processor;
• and
• further extends the certain period of time of standby for transmission of the interrupt signal to the processor when receiving the processing starting instruction from the processor during the standby for the certain period of time,
• wherein the input/output device detects a plurality of the processing starting instructions in response to instructions from a plurality of the processors, and
• wherein, in a case where the processing starting instruction is detected, the processor further extends the certain period of time until the notification to the processor is performed.