Image processing apparatus, notification monitoring program, and notification monitoring method

A non-transitory computer-readable storage medium storing therein a notification monitoring program for causing a computer to execute processing comprising:

• creating a monitoring list in accordance with monitoring targets in which appearance frequency of a first monitoring target is higher than appearance frequency of a second monitoring target in the monitoring list when priority of the first monitoring target is higher than priority of the second monitoring target;
• and
• monitoring a plurality of monitoring targets by polling for monitoring targets in the monitoring list in order of the list,
• the creating includes calculating a total number of monitoring targets in the list so that a response time, which is a total of a first time from a change in the state of a monitoring target of which the number of times of appearance in the monitoring list is 1 to a predetermined state up to detection of the change, and a second time from the detection of the change up to the start of a response processing, is shorter than a predetermined reference time that is a time from generation of a hardware interrupt in response to a processing to change a state of the monitoring target to the predetermined state up to the execution of the response processing, calculating the number of times of appearance of each of the plurality of monitoring targets by calculating, for each of the plurality of monitoring targets, the product of a total number of listed monitoring targets of the monitoring list and a ratio calculated by dividing a value corresponding to the priority of each monitoring target by a sum of values corresponding to the priority of each of the plurality of monitoring targets and creating the monitoring list so as to not include information indicating a monitoring target of which the calculated number of times of appearance is less than 1 in the monitoring list.

A notification monitoring method comprising:

• creating, by a processor, a monitoring list in accordance with monitoring targets in which appearance frequency of a first monitoring target is higher than appearance frequency of a second monitoring target in the monitoring list when priority of the first monitoring target is higher than priority of the second monitoring target;
• and
• monitoring, by the processor, a plurality of monitoring targets by polling for monitoring targets in the monitoring list in order of the list,
• the creating includes calculating a total number of monitoring targets in the list so that a response time, which is a total of a first time from a change in the state of a monitoring target of which the number of times of appearance in the monitoring list is 1 to a predetermined state up to detection of the change, and a second time from the detection of the change up to the start of a response processing, is shorter than a predetermined reference time that is a time from generation of a hardware interrupt in response to a processing to change a state of the monitoring target to the predetermined state up to the execution of the response processing, calculating the number of times of appearance of each of the plurality of monitoring targets by calculating, for each of the plurality of monitoring targets, the product of a total number of listed monitoring targets of the monitoring list and a ratio calculated by dividing a value corresponding to the priority of each monitoring target by a sum of values corresponding to the priority of each of the plurality of monitoring targets and creating the monitoring list so as to not include information indicating a monitoring target of which the calculated number of times of appearance is less than 1 in the monitoring list.