JPS58169252A - Multiprogramming data processing system - Google Patents

Abstract

PURPOSE:To make response time constant and to improve the use efficiency of a host computer, by setting the response time of each task previously and executing a transmission instruction on the basis of the result of processing the set response time of a task after a terminal equipment completes the processing of the task. CONSTITUTION:Plural terminal equipments 2-4 are connected to a data processor 1, different tasks are allotted to programs 11A-11Z of the CPU of the processor 1, and pieces of information 12A-12Z peculiar to the programs are allotted to the programs. In a response time setting table 14, response times are stored in correspondence to respective task names and a time counting table 15 is provided with the function of counting by clocktimes and by the terminal equipments 2-4; and a counted value initializing/flag setting means 16 generates and allots a task to the CPU. After the processing of the task, times in tables 14 and 15 are compared with each other by a transmission instruction controlling means 18 and the transmission instruction is executed the response time later to make the response time constant.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a multi-programming data processing method that makes the response time of each task constant in an electronic computer system that employs a multi-tasking method. It is.

(b) Prior Art and Problems In general, in a multitasking system in which a plurality of tasks independently issue occupancy requests for limited resources, the system mechanism inevitably causes waiting for the resources. This resource waiting time increases as the host computer load increases with the increase in the number of operations in the system and the number of terminals, and is a factor that determines the response time of a task. That is, the response time is expressed as the sum of the processing time and the resource available time, and the processing time is constant depending on the processing content.

Therefore, the response time is short when the system is initially developed because the number of active operations and the number of terminals are small, but increases as the number of operations increases. This is from the perspective of terminal operators who are not aware of other tasks or the increase in terminals.
Even though the processing content is the same as the original one, it takes a long time to process it, which causes the system service to deteriorate and becomes a source of dissatisfaction. Conventionally, during the initial development of a system, the range of future system expansion is predicted, the processing time of each task is calculated, and the estimated resource waiting time is spent on this, which is wasteful processing unrelated to the processing content. A dummy loop routine that executes was inserted into the initial program of the task, resulting in the initial response time being longer than the actual value. However, with this conventional method, not only does it take a lot of effort and time to create the dummy loop routine, but also the execution period of the dummy loop routine
A major drawback was that resources were taken up by it and other tasks could not be performed.

(0) Purpose of the Invention The purpose of the present invention is to provide a new multiprogramming data processing method that can realize a constant response time for each task without using a dummy loop routine. It is something to do.

(dl) Structure of the Invention Briefly stated, the present invention includes a timer means, a response time setting table for storing preset response times for each task, and a processing time for each task and each terminal device. In response to the creation of a task based on the number of stitches table and the resource occupation request from the terminal device, a flag is set in the check display section attached to the corresponding task/terminal device column in the number of hours and hours table, and the attached hour hand is means for setting the number of hands to an initial value; means for generating an interrupt signal every predetermined unit time by the timer means to add and input the unit time to the initialized number of time hands; In response to the completion of processing, the set time value of the corresponding task in the response time setting table is compared with the time count value of the corresponding task/terminal device column in the time count table, and the task is sent until they match. The present invention is characterized in that it includes means for stopping the execution of instructions, and the response time of each task is made constant.

(8) Embodiments of the Invention Preferred embodiments of the invention will now be described in more detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram showing an example of a multiprogramming data processing system to which the present invention is applied, in which 1 is a data processing system, 2.3 and 4 are terminal devices, IIA,
IIB...112 is a program group, 12A, 12
B...122 is each of the above programs 11A-112
13 is a timer attached to the system, 14 is a response time setting table, 15 is a time counting table, 16 is a hand/hour value initialization/flag setting means, 17
Reference numeral 18 indicates a unit time value output means, and 18 indicates a task transmission command control means.

In a multiprogramming data processing system, one task is assigned to each program, for example, one task is assigned to program IIA, and another task is assigned to program IIB. Now program IIB is on terminal device 2.
Assuming that the processing for the task is being executed as task B, the unique information 12B of program IIB is set in the control block and the program is running.

The response time setting table 14 provided in accordance with the present invention stores the response time of each task set in advance at the time of system development in association with each task name, as shown in the detailed diagram of FIG. For example, in the case of task A, the time is set to 3000 msec. Note that this set value does not correspond to the actual response time of the task, but is a time value that includes the resource waiting time as in the dummy loop routine described above. In addition, the time counting table 15 is
It has a function to count processing time for each task and each terminal device, and as shown in Figure 3, columns C↑1, C70, and C70 have a one-to-one correspondence between tasks and terminal devices.
..., and in those columns there is a time needle pad t.
1. t2, t3..., and a flag display section f1 for setting (writing) an execution flag. f2, f3... are added respectively. Further, the count value initialization/flag setting means 16 generates the time count table by the host computer allocating and generating a corresponding task based on the resource occupation request from the terminal device, and when the task issues a reception command, the time count table is set according to the command. A signal that sets the attached time counter to the initial value "0" in the corresponding task/terminal device column of No. 15;
It has a function of outputting a signal to set an execution flag on the attached flag display section. Assuming that there is now a request from the terminal device 1 to occupy the program 11A corresponding to task A, the time counter tl of the task A/terminal device aiicT1 becomes "0" and an execution flag "1" is displayed in the flag display section f1. is erected.

Further, the unit time value output means 17 generates an interrupt signal based on the clock output of the timer 13 every predetermined unit time, and outputs the unit time value as the time in the time counting table 15 corresponding to the task/terminal device being executed. It is equipped with a "mis" function that sequentially inputs and adds up the number of stitches. Task transmission command control means 1
Reference numeral 8 is for controlling the execution timing of the transmission command of the task whose processing has been completed, and is based on the set time value of the corresponding task in the response time setting table 14 and the corresponding task/terminal device in the time stitch count table 15. It is configured to compare the time count value in the column, and if the set time value > the time count value, the execution of the transmission command for the task is stopped, and when the time count value heard at the time of setting is reached, it outputs a signal to execute the transmission command. has been done.

That is, assuming that task B by the terminal device 2, which was currently being executed, has finished its processing and is ready to execute a transmission command, the transmission command control means 1B selects the task B in the time count table 15 at that time. Terminal device b li CT50
"Time count value r 3000" and response time setting table 1
The setting value r 4000J of task B in No. 4 is compared, but in this case, since the two values do not match, the transmission command of the task B to the terminal device 2 is stopped (blocked) and placed in a standby state.

Therefore, the time count value is determined by the unit time value output means 17.
The comparison operation is repeated for each unit time until the desired r 4000J or more is reached, and when the set time value and the time count conditionally match, the transmission command of task B is issued. Let it run. Note that during this transmission command execution waiting period, the host computer is in an unlocked state from the task B, and can execute processing of other tasks.

(f) Effects of the Invention As is clear from the above explanation, the multiprogramming data processing method of the present invention uses a response time set in advance to transmit the processing contents to the terminal device for a task that has completed its processing. In other words, the response time has been kept constant since the initial development of the system, and
Since the terminal is configured to be able to execute other tasks during this suspension period, it is possible to eliminate the deterioration of service from the terminal operator's perspective, and to significantly improve the usage efficiency of the host computer.

In addition, it has great practical effects, such as eliminating the need to create a complicated and costly program like the dummy loop routine of the conventional method.

[Brief explanation of the drawing]

FIG. 1 is a system block diagram according to an embodiment of the present invention, and FIGS. 2 and 3 are diagrams schematically showing specific configurations of a response time setting table and a time counting table in FIG. 1. 1: Data processing system, 2-4: Terminal device, 11A
~112 +Program, 12A ~12z Information specific to Niprogram, 13: Timer, 14: Response time setting table, 15: Time count table, 16: Count value initialization/
Flag setting means, 17: Unit time value output means, 18: Task transmission command control means. Procedural amendment (Hitomi June 2, 1980, Commissioner of the Japan Patent Office 1, Indication of the case 1982 Pharyngeal Axis - Algae 52748 No. 2, Name of the invention Multi-programming data processing method 3, Person making the amendment and the case) Related: Patent Birth, Address: Kanna JIIlllJll屹帥1i[hzJ6中1
015 view (522) Name Fujitsu Ltd. (Confucian Takuma Yamamoto 4, Agent! Ill! 211 Explanation” column 8, Contents of amendment + 1) “Claims” stated on page 1 of the specification attached. Correct as follows. (2) The words "timer means and...task" written in page 4, line 7 of the specification, page 5, line 3 are corrected as follows. "The response time of each task is set in advance, and after the completion of the processing of the task generated based on the resource occupation request from the terminal device, the processing of the task is performed after the set response time corresponding to the selected task has elapsed. (3) Correct "16 is" on page 5, line 16 of the specification to "r17 is". (4) On page 5, line 17, "17 is" is replaced with "16 is,"
I am corrected. (5) "Flag display section" in lines 2, 9-10 and 14-15 of page 1 of the specification is corrected to "check display section". (6) Correct "16 wa" in the 4th line of page 7 to "17 wa". (η Correct “1” on page 7, line 11 of the same as “2”. (8) Correct “17 is” on page 7, line 16 of the same as “16 is.” (9) "2" in line 10.16 of No. 1 O of the specification is corrected to "3". (To) "17" in line 18 of page 8 of the same specification is corrected to "16." (17) Specification No. Change “17” in line 7 of page 1O to “16”
I am corrected. (l) Correct "16" in line 8 of page 10 to "17". 9. List of attached documents Claims 1 or more Claims A multi-programming data processing method characterized in that an electronic pointer system employing a multi-tasking method has a constant response time. .

Claims (1)

[Claims] In a computer system that employs a multitasking method, there is provided a timer means, a response time setting table that stores preset response times for each task, and a time stitch table that allows processing time to be counted for each task and for each terminal device. In response to the generation of a task based on a resource occupation request from a terminal device, a flag is set in the check display section attached to the corresponding task/terminal device column in the time stitch count table, and the attached time counting section is initialized. means for generating an interrupt signal every predetermined unit time by the timer means to add and input the unit time to the initialized time hand number section; and responding to the completion of processing of the task. and compares the setting time value of the corresponding task in the response time setting table with the time count value of the corresponding task/terminal device column in the time counting table, and continues executing the transmission command of the task until they match. A multiprogramming data processing method characterized in that the response time of each task is made constant by providing a means for stopping the task.