JPH04102156A - Process control system - Google Patents

Abstract

PURPOSE:To preferentially execute a specified command by retrieving the command inputted by a user from a command table, changing the degree of execution priority for a process to execute the command in a process state table to a changed value and selecting the priority degree of execution. CONSTITUTION:A command analyzing means 106 reads and analyzes the inputted command and the parameter and when the execution priority degree of commands, which can be inputted from a user terminal 100, is instructed, it is reported to an execution priority degree change instructing means 107. The execution priority degree change instructing means 107 receives the command name and the correspondent execution priority degree from the command analyzing means 106 and sets the execution priority degree to a relevant entry in a command table 104. The command table 104 is composed of the entries composed of command names 200 and execution priority degrees 201 and defines the execution priority degree of the process to execute the command corresponding to the command name 200. Thus, control is enabled while having the execution priority degree for each dynamic type of command.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a process management system, and particularly to a process management system in a timesure link of a computer system.

[Conventional technology]

Conventionally, in this type of process management method, the execution priority of commands executed on a process is determined statically when the system starts operating, and cannot be changed dynamically during operation. The candidates to be swapped out are determined in descending order of priority, and the candidates to be swapped out are determined in descending order of priority.

[Problem to be solved by the invention]

In the conventional process management method described above, even if a command that a user enters from a terminal is not executed with priority over other commands during a certain period of time, it is executed uniformly based on the execution priority determined at the start of operation. The disadvantage is that the process is managed in the same manner as other commands, and it is not possible to dynamically control the execution priority of each type of command as requested by the user.

[Means to solve the problem]

The process management method of the present invention is a process management method for a time sharing system that has end-incompatible processes that correspond one-to-one to each of a plurality of terminals and executes commands input from the terminals. A command table that specifies the execution priority of commands to be executed, a process status table that holds the status of unsupported processes, and a command table that analyzes commands input from the operation administrator terminal among the terminals. an execution priority change instruction means for changing the execution priority specification of the process state table; and when a command input from a terminal is on the command table, an execution priority corresponding to this command is set in the corresponding entry of the process state table. and a process management means for selecting and executing a process with a high execution priority from this process state table.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. The embodiment shown in FIG. 1 includes a user terminal 100 where a user other than the operation administrator inputs a command, a user process 101 that is not compatible with the end where the command input from the user terminal 100 is executed, and a user process 101 where the operation administrator inputs a command. An administrator terminal 102 for inputting a command, an unsupported administrator process 103 that executes a command input from the administrator terminal 102, and a command table 104.
, a process status table 105, a command analysis means 106 that analyzes parameters of an operator command input from the administrator terminal 102, and an execution priority change instruction means 10.
7. It is configured with a process management means 108, a command table search means 109, and a process state table change means 110.

FIGS. 2(a) and 2(b) are format diagrams of the command table 104 and process status table 105 shown in FIG. The status table 105 is a table in which process identification names 202 and execution priorities are paired.

Next, in the embodiment shown in FIG. 1, during operation of the time sharing system, the operations manager inputs commands from the operator terminal 102, thereby dynamically giving instructions on execution priority for each command type. Let's explain the operation. First, the operation manager inputs an execution priority instruction command for commands that can be input from the user terminal 100 from the operator terminal 102 during operation of the time sharing system. This command is executed by the administrator process 103. The command analysis means 106 reads and analyzes the input command and its parameters. At this time, if the execution priority of a command that can be input from the user terminal 100 is instructed by a parameter, the execution priority change instruction means 107 is notified. Execution priority change instruction means 10
7 receives the command name and the corresponding execution priority from the command analysis means 106, and sets the execution priority in the corresponding entry in the command table 104. As shown in FIG. 2(a), the command table 104 consists of entries consisting of a command name 200 and an execution priority 201, and the command corresponding to the command name 200 indicates the execution priority of the process to be executed. Define.

Next, the operation of controlling the execution priority of processes in the embodiment shown in FIG. 1 will be explained. First, when a user inputs a specific command for starting use from the user terminal 100, the process management means 108 creates a correspondence between the user process 101 to be executed by the command and the terminal 100, and corresponds to the created process. The entry to be executed is registered in the process state table 105. As shown in FIG. 2(b), the process status table 105 is composed of entries consisting of a process identification name 202 and an execution priority 203, and the process identification name 202 is used to uniquely identify process]01. The execution priority is a value that determines the order in which processes are executed. The process management means 108 gives priority to the processes with the highest value of the execution priority 203.

The processes with the lowest execution priority 203 value are selected as swap-out candidates. Now, user terminal] -
An execution command is input to 〇〇, and process 101 is started.
When the command table is activated, the process management means 108 notifies the command table search means 109 and gives the process identification name. Command table search method]
09 searches the command table 104 using the command name of the command activated on the process corresponding to this process identification name as a key. Therefore, if the execution priority specification corresponding to this command name is set on the corresponding entry in the command table 104, this execution priority is given to the process state table changing means 11-0.

The process state table modifier n 110 receives the execution priority from the command table search means 109 and sets the execution priority to the corresponding end of the process state table 105. Next, the process management means 108 searches the process status table 10 and the like, and executes the processes in descending order of execution priority 203. By the way, if the execution priority corresponding to the above command name is not specified or set on the corresponding entry in the command table 104, the process management means 108 immediately searches the process status table ]-05 and sets the execution priority. Execute processes starting from the process with the highest value of degree 203.

〔Effect of the invention〕

As explained above, the present invention includes an execution priority change instruction means for changing the command execution priority instructed by an operation manager during operation of a time sharing system on a command table, and When the command is detected by searching the table, the process management means selects the execution priority by changing the execution priority of the process that executes the command in the process status table to the changed value. This has the effect of allowing specific commands to be executed preferentially.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIGS. 2(a) and 2(b) are format diagrams of the command table and process status table of FIG. 1, respectively. 100... User terminal, 101... User process, 102... Administrator terminal, 103... Administrator process, 104... Command table, 105...
. . . Process status table, 1.06 . . . Command analysis means, 107 . . . Execution priority change instruction means, 108
. . . Process management means, 109 . . . Command table search means, 110 . . . Process status table change means. fth period

Claims (1)

[Claims] Specifies the execution priority of commands input from a terminal in a process management method for a time sharing system that has a terminal-compatible process that corresponds one-to-one to each of multiple terminals and executes commands input from the terminal. A command table, a process state table that holds the state of processes corresponding to the terminal, and an execution table that analyzes commands input from the operation administrator's terminal among the terminals and changes the execution priority specification of the command table. When a command input from a priority change instruction means and a terminal is on the command table, the execution priority corresponding to this command is set in the corresponding entry of the process state table, and then executed from this process state table. 1. A process management method comprising a process management means for selecting and executing a process with a high priority.