JP2005031870A - Charging method for job - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a charging method for a job composed of a plurality of process groups in job charging processing of a computer system. <P>SOLUTION: In order to acquire charging information of the user job composed of a plurality of process groups in the computer system, a unique ID is assigned to the first process of the user job within the system by an OS and inherited during the process generation, so that the OS can recognize the executed processes of the job. Every time each process of the job is ended, the information is stored and tabulated in a jog charging information storage area in the OS, and when all the processes of the job are ended, reporting to job management software and writing to a charging file are performed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a job charging function in a computer, and a technique that can be acquired from an operating system without being aware of information such as which job a process belongs to when job management software acquires / aggregates process charging information of a user job. About.
[0002]
[Prior art]
In a conventional computer system, process billing data is collected for each process, and the operating system writes the billing file for the entire system every time each process ends. In job accounting, when a user executes a batch job, it is usually the process of the executed job based on the process accounting information output by the operating system when the job is started from the job management software and the job ends. The job management software discriminates and counts whether or not (for example, see Patent Document 1).
[0003]
In addition, since there was no concept of a job in the early computer system, the system call that links the charging of the job with the charging of the process group, outputs the charging as the process group as the job charging, and generates a new process group within the job. There is also a system that guarantees the consistency of accounting as a job by not generating a process group even if issued.
[0004]
[Patent Document 1]
JP-A-5-233486 [0005]
[Problems to be solved by the invention]
In the process charge information in the conventional process unit, the unit of charge information is small, and the data amount is a process unit, which is enormous. Also, when charging is performed in units of batch jobs, the job is handled as a process group, and the job management software uses the process group ID as a key based on the charging information for each process output by the operating system. Tally. However, when processing for generating a process group is performed in the job, the job management software must recognize not only the process group at the time of starting the job but also the ID of the newly generated process group, Accurate billing as a job is not possible. As a workaround, a method of preventing a process group from being generated from within a job is used, but execution of the job is limited.
[0006]
An object of the present invention is to enable an operating system to recognize a single job even when a plurality of process groups are generated in a job, and to guarantee the generation of a process group from within the job and accurate charging as a job. In addition, the amount of billing information output to the billing file is suppressed, and the ease of acquiring job billing information is improved.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, in the charging method for system resource use of a batch job, when the program is called as a batch job from the job management software and executed based on an instruction from the user, the operating system executes the batch job. When a unique ID is set in the system for the first process in the system, the ID is inherited by process generation, and multiple process groups are generated in the job, all the processes in the job are operated as one unit. The accounting information is totaled in the memory space of the operating system every time the system is executed and the process is completed, and the totaled accounting information is passed to the job management software when the last process in the job is completed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0009]
FIG. 1 is a system configuration diagram of an embodiment of the present invention.
[0010]
An operating system (OS) 1 manages user jobs 2. The job 2 is composed of process groups 3a and 3b, and the process group 3a is composed of processes 4a and 4b. The process group 3b is composed of one process 4c, and these processes are processed as one job 2 in the operating system, and the accounting information of each process is aggregated and stored in the job accounting information storage area 5 at the end of the process. Is done.
[0011]
The collected billing information is written in the billing file 7 of the external storage device 6. The accounting information is also notified to the job management software 8.
[0012]
FIG. 2 shows an example of a job entry table 200 generated in the job accounting information storage area 5 of the operating system 1 when a job is started, and a process group entry table 204 that is also generated in the job accounting information storage area 5 when a process group is generated. It is shown.
[0013]
The job entry table 200 includes a job ID 201 for identifying a job in the operating system, an address 202 of a table 204 for storing information of a process group existing in the job, and a field 203 for storing charging information as a job. Consists of.
[0014]
The process group entry table 204 is a table showing process groups existing in the job, and is a table linked to the field 202 of the job entry table 200 when a process group is generated in the job. The process group entry table 204 includes a NEXT entry address 205, a process group ID 206, a status 207, and accounting information 208 for the process group. If a plurality of process groups are generated in the NEXT entry address 205, the next process group entry is displayed. The table address indicates a table address, and the status 207 stores information indicating whether all processes in the process group are completed or operating. Process accounting information is added to and stored in the accounting information 208 every time a process in the process group ends.
[0015]
FIG. 3 shows an operation of notifying the job management software 8 of charging information as a job when a user submits a batch job and a plurality of process groups are generated in the job.
[0016]
When the user submits a job to the job management software 8, the job management software 8 generates a job activation process 4a. The process 4a issues a system call for setting a unique ID in the system to the process 4a. At this time, the system call processing 300 generates a unique ID and sets it in the process 4a, and then generates the job entry table 200 in the job billing information storage area 5. Then, the process 4a issues a system call for generating the process group 3a, generates a process group entry table 204a, and links to the job entry table 200 having the same job ID as the process 4a.
[0017]
Finally, the process 4a loads the job program submitted by the user and starts the job. The process 4b is a child process of the process 4a and belongs to the same process group 3a. Since the process 4b inherits the job ID at the time of generation, the operating system recognizes it as the same job.
[0018]
The process 4c is a process generated from the process 4b, and the job ID is inherited similarly to the process 4b. When the process 4c issues a system call for newly generating a process group, the process 4c is disconnected from the process group 3a and becomes a process of the newly generated process group 3b. At this time, a process group entry table 204b indicating that the process group 3b has been generated is generated and linked to the same job entry table 200 as the job ID of the process 4c.
[0019]
When the process 4b ends, the process charging information is stored in the charging information 208 which is a field of the process group entry table 204a. When the process 4a ends, the accounting information is stored in the same table 204a as the process 4b. At this time, since the accounting information of the process 4b is stored, it is added and stored.
[0020]
Upon completion of all processes in the process group 3a, a flag indicating that all processes have ended is set in the status 207 of the process group entry table 204a. Similarly, when the process group 3b disappears, an end flag is set in the status 207 of the table 204b. When the operating system detects that the end flag is set in the status 207 of all the process group entry tables linked to the job entry table 200, the operating system totals the accounting information 208 of the process group entries 204a and 204b, and sets the job management software. 8 is notified.
[0021]
FIG. 4 is a flowchart showing an outline of operations related to preprocessing when the job management software 8 starts a job. The job management software 8 generates a process for starting a job.
[0022]
As a process performed by a process, first, a system call is issued for having a unique job ID in the system set in the own process. A job entry table 200 for the job ID assigned at this time is generated in the operating system (step 400). Next, a system call for generating a process group is issued (FIG. 5), and it becomes a leader of the newly generated process group. A process group entry 204a for the process group generated at this time is created and linked to the job entry table 200 (step 401). Finally, the user program is loaded and job execution is started (step 402).
[0023]
FIG. 5 is a flowchart showing an operation outline when the operating system 1 generates a process group. When a system call for generating a process group is issued, a process group is generated using the ID of the process that issued the system call as the process group ID (step 500).
[0024]
Check the job ID of the process group issuing process (step 501), and if it has a job ID, check whether a job entry table having the same job ID exists in the job billing information storage area (step 502). If so, the process group entry table 204b is created and the process group ID is set, and then linked to the job entry table 200 (step 504). If no job entry table with the same job ID exists, a system error occurs (step 503).
[0025]
FIG. 6 is a flowchart showing the operation when the process is completed in the job. When the process in the job ends, a job entry table that matches the job ID of the end process is searched from the job billing information storage area (step 600). If there is no job entry table with the same job ID, a system error (step 601) occurs, and when there is the same job entry table 200 (step 602), it matches the ID of the process group to which the generated child process belongs. Search the process group entry table. If there is no process group entry table with the same process group ID, a system error (step 603) occurs, and if there is (step 604), process charging information is set in the charging information field 208 in the table (step 606). . If the accounting information for the termination of another process has already been set (step 604), the accounting information for the termination process and the already set accounting information are added (step 605) and set in the accounting information field 208.
[0026]
It is determined whether the end process is the last process in the process group (step 607). If it is the last process, the status 207 of the process group entry table is set to the end of all processes, and the accounting information of the process group entry table is set. It is added to the accounting information field 203 of the job entry table (step 608).
[0027]
Thereafter, the statuses of all process group entry tables linked to the job entry table are checked (step 609). If all processes have been completed, the process stored in each process group entry is checked. The group billing information is aggregated and notified to the job management software as job billing information. Also, the job billing information is written in the billing file (step 610).
[0028]
It is also possible to store a program for executing the job billing method of the present invention described above in a computer-readable storage medium, and read this program into a memory for execution.
[0029]
【The invention's effect】
According to the present invention, accounting information can be obtained accurately and efficiently even when a plurality of process groups are generated in a job.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram of an embodiment of the present invention.
FIG. 2 is a table for managing process groups within a job.
FIG. 3 is a principle diagram of an embodiment of the present invention.
FIG. 4 is a job execution pre-processing flowchart.
FIG. 5 is a process group generation processing flowchart;
FIG. 6 is a flowchart of an in-job process end process.
[Explanation of symbols]
1: operating system, 2: job, 3a, 3b: process group, 4a, 4b, 4c: process, 5: job charging information storage area, 6: external storage device, 7: charging file, 8: job management software, 200 : Job entry table, 201: Job ID, 202: Process group information list area address, 203: Job accounting information, 204: Process group entry table, 205: NEXT entry address, 206: Process group ID, 207: Status, 208: Process group billing information, 300: system call processing section

Claims (2)

In the charging method for the use of computer system resources for batch jobs,
When a program is called and executed as a batch job from the job management software based on an instruction from the user, the operating system sets a unique ID in the system for the first process of the batch job, and the ID is generated by process generation. Inherit,
When multiple process groups are created in a job, the operating system executes all processes in the job as a unit,
Billing information is summed up in the operating system memory each time the process ends,
A job accounting method, wherein accounting information collected at the end of the last process in a job is passed to job management software. A computer-readable storage medium storing a program for executing a charging method for use of computer system resources of a batch job, the method comprising:
When a program is called and executed as a batch job from the job management software based on an instruction from the user, the operating system sets a unique ID in the system for the first process of the batch job, and the ID is generated by process generation. Inherit,
When multiple process groups are created in a job, the operating system executes all processes in the job as a unit,
Billing information is summed up in the operating system memory each time the process ends,
A storage medium characterized in that accounting information collected at the end of the last process in a job is passed to job management software.

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