JPH0399355A - time sharing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to a time sharing system that allocates computer resources to a plurality of terminal devices and processes input information from each terminal device in a time-sharing manner.

B. Prior Art The schematic configuration of a conventional time sharing system is shown in the block diagram of FIG.

The figure shows an example in which the central processing unit 1, which is one of the computer resources, is used by three terminal devices A, B, and C. Note that reference numeral 2 is a front end computer that collectively sends input information from each terminal device to the central processing unit 1, and sends an answer or reply from the central processing unit 1 to each terminal device. The operation of the time sharing system with such a configuration will be explained based on the time chart of FIG. 5.

When a processing request is issued from the terminal device A to the central processing unit 1, the central processing unit 1 sends the corresponding instructions and information back to the terminal device A, and the terminal device A sends the input data to the front desk.
It is sent to the central processing unit 1 via the end computer 2. Then, when the time T allotted to terminal device A has passed, the central processing bag! 1 forcibly interrupts the processing for terminal device A and responds to the processing request from terminal device B. Similarly, when the allocated time T has passed, this time in response to the processing request from the terminal device C, the processing for the unterminated device A is continued again after the allocated time T has elapsed.

In this way, by sequentially allocating the central processing unit 1 to each terminal device for a uniform time T, the central processing unit 1 is not monopolized by one terminal device, and the input data from each terminal device is shortened. Processing time.

Problems to be solved by the C1 invention However, the above-mentioned conventional time sharing
The system has the following problems.

Regardless of the usage status of each terminal mRH, the central processing unit 1
are allocated in a uniform order for a uniform time, so that users of terminal devices who frequently make processing requests to the central processing bag M1 and users of terminal devices that make relatively few processing requests also require waiting time. For this reason, it cannot be said that the central processing unit 1 is appropriately allocated to each terminal device, and there is a problem that effective use of computer resources is not achieved.

This invention was made in view of the above circumstances, and aims to provide a time sharing system that can control the allocation of computer resources according to the usage status of each terminal device. There is.

Means for Solving the Problems The present invention has the following configuration to achieve the above object.

That is, the time sharing system according to the present invention allocates computer resources to a plurality of terminal devices and processes input information from each terminal device in a time-sharing manner. It is characterized by comprising a measuring means for measuring the usage status, and a controlling means for controlling the allocation of computer resources to each terminal device based on the measurement data from the measuring means.

81 Effect According to this invention, when input for using computer resources is made from a plurality of terminal devices, the measuring means measures the input status of each terminal device for a set period and sends the data to the control means. . The control means allocates computer resources based on the given measurement data so that more computer resources are allocated to terminal devices with high usage status! II 1 wholesale.

F. Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram schematically showing the configuration of an embodiment of the present invention.

In the figure, reference numeral 1 denotes a central processing unit as a computer resource that processes input data from a plurality of terminal devices A, B, and C (when collectively referred to as terminal devices), and reference numeral 2 denotes an input of each terminal device. The number of times and the time from when an input instruction is given to the central processing unit 1 to when data is input (hereinafter referred to as
A front end computer 4 serves as an interface between each terminal device and the central processing unit 1, and sequentially stores these data in the status storage unit 3. A usage status measurement unit, reference numeral 5, measures the number of inputs and input time of each terminal device within a set period based on the data in the status storage unit 3.
Reference numeral 6 indicates a time scheduler as a control means for changing and setting the number of allocations and time for the central processing unit 1 based on the measurement results of the usage status measurement unit, and reference numeral 6 indicates a timer that supplies time information to the front end controller 2. It is.

The above-mentioned front end computer 2 and usage status measuring section 4 correspond to the measuring means of the present invention.

Next, the allocation control of the central processing bag W1 in the above-described time sharing system will be explained.

When a processing request is issued from a terminal device to the central processing unit 1,
The front end computer 2 first determines which terminal device the processing request is from.

For example, if it is determined that it is the terminal device A, an identification code indicating the terminal 11HA is temporarily stored in the internal memory, and a processing request for the terminal device is sent to the central processing unit 1. Next, when an input instruction is given to the terminal device A from the central processing unit 1, it starts counting the clock signal supplied from the timer 6, and when the terminal device A inputs day and evening in response to the manual instruction, it starts counting. end. The counted number is written as input time data of the terminal device A into the status storage unit 3 together with the identification code of the previous terminal device A.

In this way, the identification code and human labor time data of each terminal device that issued a processing request are written into the situation storage section 3.

The usage status measurement unit 4 specifies the address area of information written to the status storage unit 3 during a preset period, and reads out information within the area. Based on the identification code of the read information, the number of inputs for each terminal device is counted, the average value of the input time data for each terminal device is calculated, and this information is sent to the time scheduler 5. An example of the information is shown in a graph format in FIG. Figure (a) shows the input frequency data of each terminal device, and the symbol n1
indicates the number of inputs for terminal device A, symbol n2 indicates the number of inputs for terminal device B, and symbol n indicates the number of inputs for terminal device C.

The figure (b) shows the average data of the input time of each terminal device, and the number 1. is the input time of terminal device A, code t2
indicates the human input time of terminal device B, and symbol t indicates the average input time of terminal device C, respectively.

When such information is given, the time scheduler 5 calculates the ratio of the number of inputs and the input time for each terminal device, and sets the number of times of allocation and the allocated time for each terminal device according to the calculation result. For example, if the calculation result of the information shown in FIG. 4 is as follows, nl :nz :n3=1:2:Lm+ :t
z : ti = 1 : 2 : 2 Terminal device B, whose manual effort count nt is twice that of other terminal devices, uses computer resources more frequently, so it is set to twice the number of allocations of other terminal devices. , the human labor time t, is 1 of the other terminal equipment.
Terminal device A, which has a value of /2, is considered to have a lot of data waiting for input, so it sets twice the allocated time.

At this time, an upper limit is set in advance for the number of allocations and the allocation time in order to avoid extreme monopolization of computer resources, and the settings are made within the framework of this upper limit. For example, if there are three terminal devices, the number of times and time allocated to one terminal device should be kept to 50% or less of the total.

In such a case, the number of times allocated to terminal device A is 25% of the total, 50% to terminal device B, and 2 to terminal device C.
It will be 5%.

Furthermore, terminal device A is allocated 50% of the total time, terminal device B is allocated 25%, and terminal device C is allocated 25% of the total time. FIG. 3 is a time chart showing the number of allocations and the allocation time at this time.

In this way, the central processing unit 1 is not monopolized by one terminal device, and by controlling the number of allocations and the allocation time of the central processing unit 1 according to the usage status of each terminal device, it is possible to More times are allocated to device users, and more time is allocated to terminal device users who require shorter input times (users who desire processing in a shorter time).

In the above embodiment, the central processing unit 1 was illustrated as a computer resource, but this can be similarly applied to a time sharing system that uses input/output devices such as magnetic disk drives as computer resources. I can do it.

In addition, in the above embodiment, the usage status was grasped by measuring the number of allocations and the allocation time, but it is also possible to grasp the usage status only by the number of allocations or the allocation time, and similarly It may also be possible to control the assignment to terminal devices.

Moreover, the allocation control of combinator resources may be performed only by either the number of allocations or the allocation time.

Effects of the G8 Invention As is clear from the above explanation, the time sharing system according to the present invention controls resource allocation according to the usage status of computer resources of each terminal device, so that the time sharing system according to the invention can be used frequently. By allocating more resources to terminal devices that are used relatively little, and by allocating fewer resources to terminal devices that are relatively infrequently used, resources can be distributed appropriately and resources can be used effectively. .

[Brief explanation of drawings]

1 to 3 relate to an embodiment of the present invention, in which FIG. 1 is a block diagram showing a schematic configuration of a time sharing system, and FIG. 2(a) shows an example of input frequency data. The graph shown in FIG. 3 is a graph showing an example of input time data, and FIG. 3 is a time chart showing time allocated to each terminal device. Furthermore, FIGS. 4 and 5 relate to the prior art, where FIG. 4 is a block diagram showing a schematic configuration of a time sharing system, and FIG. 5 is a time chart showing time allocated to each terminal device. It is. 1...Central processing unit 2...Front end computer 3...Situation storage section 4...Usage situation measurement section 5...Time...
scheduler

Claims (1)

[Claims] (1) Allocate computer resources to multiple terminal devices,
Time-sharing system that processes input information from each terminal device in a time-sharing manner.
The sharing system includes a measuring means for measuring the computer resource utilization status of each terminal device, and a control means for controlling the allocation of computer resources to each terminal device based on the measurement data from the measuring means. A time sharing system featuring