JPS62121548A - Job residence period monitor system - Google Patents

Abstract

PURPOSE:To remove a neck in starting the execution of a job by providing a deleting part for deleting job description information selected by a selecting part from a memory area on an auxiliary memory device. CONSTITUTION:A monitor part 6 for monitoring a residence state of the job held on the auxiliary memory device 3, a decision part 7 for deciding whether the number of the residences of the job is larger or smaller than the desired value specified by a system based on the result of the monitor part, the selecting part 5 for selecting the job having the longest residence period based on the job description information held on the auxiliary memory device when the number of the residences of the job is larger than the desired value according to the decision of the decision part 7, and the deleting part 8 for deleting the job description information of the job selected in the selecting part from the memory area on the auxiliary memory device are provided. Thereby,the residence state of the job held on the auxiliary memory device is monitored at a suitable time, when the residence of the job is larger than the desired value, the held job is deleted from the memory area on the auxiliary memory device and the neck in starting the execution of the job during the generation of a large quantity of new job can be removed.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention stores job description information in a storage area on an auxiliary storage device before executing a job, thereby making it possible to re-execute the job even after the job has been executed. The present invention relates to a computer system that enables this, and particularly to a method for monitoring job retention time.

[Conventional technology]

Conventionally, this type of job residence time method selects and deletes the job with the longest residence time every time job execution is completed.

[Problem that the invention seeks to solve]

The conventional job retention time monitoring method described above selects a job with a long retention time every time a job finishes executing due to an increase in the number of job executions and an increase in the number of jobs that execute for a long time. As the severity increases, the auxiliary storage capacity becomes enormous, which has the disadvantage of becoming a bottleneck in starting job execution.

[Means to solve the problem]

The job retention time monitoring method of the present invention includes a monitoring unit that monitors the retention status of jobs held on an auxiliary storage device at an appropriate time, and a system that defines the number of job retention based on the results of the monitoring unit. a determination unit that determines whether the number of retained jobs is greater than or less than the target value; and a determination unit that determines whether the number of retained jobs is greater than the target value based on the job description information held on the auxiliary storage device according to the determination by the determination unit. It has a selection section that selects the job with the longest residence time, and a deletion section that deletes job description information of the job selected by the first selection section from the storage area on the auxiliary storage device.

In this way, the retention status of jobs held on the auxiliary storage device is monitored at appropriate times, and if the number of retained jobs is larger than the target value, the retained jobs are transferred to the storage area on the auxiliary storage device. By deleting the job from the list, it is possible to eliminate the bottleneck in starting job execution even when a large number of new jobs are generated.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the job residence time monitoring and control method of the present invention.

Job description information is stored in the auxiliary storage device 3 prior to job execution. A system scheduler 2, which is a control program that manages job execution, is stored in the main memory of the data processing device 1. The system scheduler 2 includes a recording unit 4 that stores job description information in the auxiliary storage device 3 before starting job execution, and a monitoring unit 6 that monitors the retention status of jobs held in the auxiliary storage device 3 at appropriate times. , a determination unit 7 that determines whether the number of retained jobs is larger or smaller than the target value based on the result of the monitoring unit 6; A selection unit 5 refers to job description information held in the auxiliary storage device 3 and selects a job with the longest residence time, and a storage area on the auxiliary storage device 3 stores the job description information of the job selected by the selection unit 5. A deletion unit 8 is provided for deleting from the file.

FIG. 2 is a flowchart showing supervisory control in this embodiment.

The monitoring unit 6 obtains the job retention status on the auxiliary storage device 3 (
Process A) 9 Next, the determination unit 7 determines whether the number of retained jobs is greater than the target value defined by the system. Process B
), if it is not larger, the process ends; if it is larger, the selection unit 5 selects the job with the longest residence time from the auxiliary storage device 3. C) First, the deletion unit 8 selects the job selected in process C. The descriptive information is deleted from the auxiliary storage device 3 (step D), and the process ends.

〔Effect of the invention〕

As described above, the present invention monitors the retention status of jobs held on an auxiliary storage device at an appropriate time, and when the retention of jobs is larger than a target value, the retained jobs are transferred to the auxiliary storage device. By deleting from the above storage area, it is possible to eliminate the bottleneck in starting job execution even if a large number of new jobs are generated.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of an embodiment of the job residence time monitoring method of the present invention, and FIG. 2 is a flowchart showing the monitoring control of this embodiment. 1...Data processing device. 2...System scheduler. 3... Auxiliary storage device. 4... Recording department. 5... Selection section. 6...Monitoring department. 7... Judgment section. 8... Deletion part. Representing patent applicant NEC Corporation Patent attorney Uchihara 1 Shi・Japan −
1-l

Claims (1)

[Scope of Claims] A computer system in which job description information is held in a storage area on an auxiliary storage device prior to execution of the job, thereby making it possible to re-execute the job even after the job has been executed, comprising: the auxiliary storage device. a monitoring unit that monitors the retention status of jobs held at the top at an appropriate time; and a determination unit that determines whether the number of retained jobs is larger or smaller than a target value defined by the system based on the results of the monitoring unit. a determination unit; and a selection for selecting a job with the longest retention time based on job description information held on the auxiliary storage device, if the determination by the determination unit indicates that the number of jobs remaining is greater than a target value. A job retention time monitoring method, comprising: a deletion section that deletes job description information of a job selected by the selection section from a storage area on the auxiliary storage device.