Information processing apparatus, information processing method, and information processing program

1. An information processing apparatus comprising:

a storage configured to accumulate trace information relating to execution conditions of monitoring subjects, and store a determination value, the determination value being a number of the monitoring subjects using a specific resource which is used by the monitoring subjects; and

a processor configured to update the determination value to a value obtained by adding a predetermined value to the determination value when one of the monitoring subjects starts to use the specific resource, update the determination value to a value obtained by subtracting the predetermined value from the determination value when one of the monitoring subjects stops using the specific resource, and delete the trace information accumulated in the storage when the determination value indicates that none of the monitoring subjects are using the specific resource.

2. The information processing apparatus according to claim 1 , wherein the monitoring subjects are programs, which operate on a computer, included a job in which the programs are operated in sequence,

the specific resource is a memory used by the programs.

3. The information processing apparatus according to claim 2 , wherein, when the job is completed or one of the programs calls up another program, the processor determines, on the basis of the determination value, whether or not none of the programs using the memory.

4. The information processing apparatus according to claim 1 , wherein, when the determination value falls below 0, the processor does not delete the trace information.

5. The information processing apparatus according to claim 1 , wherein, when the determination value updates after being updated in response to a first start or an first end of use of the specific resource and before being updated in response to a second start, which is performed next to the first start or the first end, or an second end, which is performed next to the first start or the first end, of use of the specific resource, the processor does not delete the trace information.

6. The information processing apparatus according to claim 1 , wherein the storage stores the trace information in association with an acquisition time of the trace information, and

the processor deletes the trace information of which the acquisition time is up to a predetermined time prior to a time when the determination value is determined that the determination value indicates that none of the monitoring subjects are using the specific resource.

7. The information processing apparatus according to claim 1 , wherein the storage stores identification information identifying the trace information stored when none of the monitoring subjects are using the specific resource, and

the processor, when a number of stored pieces of the identification information is identical to a predetermined value, deletes the trace information stored prior to the trace information identified by the identification information stored initially in the storage, and deletes the initially stored identification information from the stored identification information.

8. The information processing apparatus according to claim 1 , wherein, when the determination value indicates that none of the monitoring subjects are using the specific resource while the monitoring subjects are executing, the processor deletes the trace information accumulated in the storage.

9. An information processing method comprising:

accumulating, by a processor, in a storage, trace information relating to execution conditions of monitoring subjects, and storing, by a processor, a determination value, the determination value being a number of the monitoring subjects using a specific resource which is used by the monitoring subjects; and

updating, by a processor, the determination value to a value obtained by adding a predetermined value to the determination value when one of the monitoring subjects starts to use the specific resource, updating, by a processor, the determination value to a value obtained by subtracting the predetermined value from the determination value when one of the monitoring subjects stops using the specific resource, and deleting, by a processor, the trace information accumulated in the storage when the determination value indicates that none of the monitoring subjects are using the specific resource.

10. A non-transitory computer-readable storage medium storing therein an information processing program for causing a computer to execute a process comprising:

accumulating, in a storage, trace information relating to execution conditions of monitoring subjects, and storing a determination value, the determination value being a number of the monitoring subjects using a specific resource which is used by the monitoring subjects; and

updating the determination value to a value obtained by adding a predetermined value to the determination value when one of the monitoring subjects starts to use the specific resource, updating the determination value to a value obtained by subtracting the predetermined value from the determination value when one of the monitoring subjects stops using the specific resource, and deleting the trace information accumulated in the storage when the determination value indicates that none of the monitoring subjects are using the specific resource.