JPH0786873B2 - System performance design work simulator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] A simulator for system performance design work of a computer system, a system performance design capable of evaluating the result by executing the system performance design work in a simulated manner with relatively simple equipment. For the purpose of a work simulator, the design of a computer system for processing the required work, in the simulation of the work to proceed with reference to the performance data of the computer system, by the input of the initial design data of the computer system determined by the design, Means for configuring a model of the computer system, means for changing the model by inputting design change data of the computer system, and, based on the model, simulating the operation of the computer system to obtain predetermined performance data. It has a performance simulator to generate, and the schedule of the design work according to the work item input. Module, sets a predetermined environment change according to the schedule, artificially executes the work of each work item, and drives the model changing means and the performance simulator according to the work to be executed. To configure.

[Industrial application field]

The present invention relates to a simulator for simulating system performance design work of a computer system.

[Problems to be solved by conventional technology and invention]

When a computer system, especially a so-called online system, becomes large and complicated, the hardware and software configurations of the system are determined so that the required work can be processed with the required response time. System performance design for performing performance improvement work such as program modification, so-called system tuning, becomes an important and difficult work.

In the system performance design work, after setting the hardware and software components that are considered to satisfy the required work, the performance of the computer system composed of them is measured. As the performance requirement item, for example, a response time, which is an elapsed time from the data input in the terminal device to the output of the processing result from the computer, is used.

If the performance of the system thus obtained does not meet the requirements, the required components of the system of hardware and software are replaced or modified as described above, the performance is measured again, and this tuning is performed. The work is repeated until suitable performance is obtained.

In order to improve the performance of such a system, basic knowledge as well as experience gained by actually experiencing the work are important.
For example, in the case of a computer system that is actually delivered to the customer, there are restrictions on the work period and cost, there are necessary procedures such as negotiation with the customer when changing the system, design conditions such as the amount of data, Since specification changes will occur, it is necessary to manage the progress of work in consideration of them.

Therefore, there is a problem that it takes a relatively long period of time and a lot of cost to train the system designer, and it is difficult to maintain the required capacity level.

An object of the present invention is to provide a system performance design work simulator capable of performing system performance design work in a simulated manner with relatively simple equipment and evaluating the result.

[Means for solving problems]

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

The figure shows the system performance design work simulator configuration.
1 receives the initial design data of the computer system,
The initial model configuration unit 3 for generating the simulation model 2 sets the work schedule 5 by referring to the work item table 4 by inputting the work item, and the environment change table 10
According to the above, a work execution control unit for changing the simulation condition and driving a required portion of the simulator, 6 is a performance simulator for simulating the movement of the system represented by the model 2 and outputting performance data 7, and 8 is design change information. Is a model conversion unit for changing the model 2 by referring to the model conversion table 9, and the performance simulation means is configured by the initial model configuration unit 1, the model conversion unit 8, the performance simulator 6 and related tables, and the work execution control is performed. The work simulation means is configured by the unit 3 and related tables.

[Action]

After performing the initial system design, the user of this work simulator first inputs the initial design data into the initial model configuration unit 1 and sets the model 2 for the simulation by the performance simulator 6.

Next, in the work simulator, the work execution control unit 3 allows the user to specify the work item and the schedule, and creates the work schedule 5.

When the user inputs a predetermined execution instruction, the work execution control unit 3 has a conversation with the user for simulating the work of each work item according to the work schedule 5. At this time, if a change in the environmental condition of the work simulation is designated by the environment change table 10, the change is synchronized with the process to be executed.

When the execution of the test work is designated by the execution instruction, the performance simulator 6 is instructed to perform the simulation by the model 2, and the resulting performance data 7 is displayed.

When the tuning work is simulated, the input design change information is passed to the model change unit 8, and the model change unit 8 uses the model change table 9 according to the design change information.
The model 2 is changed by referring to.

With the above method, the user can relatively easily experience the system performance design work in a simulated manner.

〔Example〕

FIG. 2 is a diagram showing an example of the configuration of a computer constituting the system performance design work simulator of the present invention, in which a processor 14 mainly composed of an appropriate microprocessor and memory executes a program loaded in the memory. Due to
The functions of the respective units in FIG. 1 are realized, the output is displayed on the display device 11 of, for example, a CRT display, and the input is input by the input device 12 such as a keyboard.

The program, required control data, and the like are stored in the storage device 13 such as a floppy disk, and are read by the processing device 14 as necessary, and required output data are written.

FIG. 3 is a diagram showing the flow of simulation of the system performance design work depending on the type of screen displayed on the display device 11.

When the simulator is started up, first, the initial model construction unit 1 in FIG. 1 is operated to display the device loading menu screen 20 in FIG.

On this screen, in order to specify the components of the designed system, for example, a menu showing the model, performance, etc. of the direct access storage device (DASD) such as a central processing unit (CPU) and magnetic disk storage device is displayed. .

The user moves the cursor on the screen, selects the device model required for the initially designed system on the screen, and in the case of the CPU, also specifies the memory amount by inputting from the keyboard. Also, DASD
In case of, enter the required number.

When the initial model construction unit 1 receives the end instruction of the above input, it then displays the volume information input screen 21 to specify the address assignment for each DASD, the capacity and arrangement of the database and data set, the data configuration, etc. Input them, and when they are completed, generate a model 2 for performance simulation based on the input specifications.

The model 2 is roughly classified into hardware information, system software information, and application software information, and all of them may be designated. However, in this example, parameters of initial design data other than the parameters of the model determined by the above designation are used. Are separately set in advance and held in the simulator.

The hardware information includes connection information about the CPU, DASD, channel device, etc., performance information such as instruction execution speed, memory capacity, etc.

The system software information includes the number of running steps for various so-called macro instructions possessed by the management program of the operating system, the amount of memory used by the management program, and the like.

In the application software information, the number of running steps of the business program, the file to be accessed, the priority of the task, and other information are determined for each business.

When the setting of the model 2 based on the initial design data is completed, the work execution control unit 3 is executed, and a work schedule screen 22 and a work item screen 23 are displayed as shown in FIG.

The work schedule screen 22 is, for example, as shown in FIG.
It is a table with dates and work item entry fields. The work item screen is displayed, for example, as a window superimposed on the work schedule as shown in FIG. 5, and the work items include, for example, survey work registration, tuning work registration, auxiliary work registration, test work registration, execution, interruption, and end. It is a menu designed to be designated by numbers 7 to 7.

Here, "registration" of the above-mentioned works is a work for incorporating each work into a schedule, and "execution" is an instruction to execute the registered work according to the schedule.

Further, "interruption" is used as an instruction for temporarily ending the work simulation in a state in which the work simulation can be resumed later and continued, and "end" is an instruction to complete the simulation.

If you specify the required "registration" work on this work item screen,
The work execution control unit 3 displays the work selection screens 24 to 26 such as the survey work selection screen, the tuning work selection screen, or the auxiliary work selection screen, corresponding to each, by referring to the work item table 4, and the work content To be selected.

FIG. 6 shows an example of a tuning work selection screen, which is a menu for designating various system elements that can be changed for tuning by numbers.

When the user selects a required work from such a selection screen, the work execution control unit 3 refers to the work item table 4 to display the man-hours of the selected work, and the user sets the desired date and time. Specify by moving the cursor to the corresponding position on the schedule screen. Therefore, the work execution control unit 3
Displays the work in a work schedule so as to occupy a predetermined work time.

Therefore, in the work item table 4, work time, work man-hours, and required processing items are recorded for each work.

According to the specification of the work item table 4, the work execution control unit 3 checks not to accept work registrations that contradict the constraint conditions. For example, in the case of changing the CPU model, the work execution control unit 3 negotiates with the user in advance. Measures such as providing a waiting period of 20 days before work is required and can be carried out are automatically checked at the time of schedule setting, and the required period is scheduled.

In this way, after completing the registration work up to the required work stage and creating the work schedule, the user
When "execution" is specified in, the work execution control unit 3 displays each execution screen 27 to 30 for each work according to the setting of the work schedule, and simulates each work by the conversation with the user. .

At this time, the work execution control unit 3 refers to the environment change table 10 and, if there is a designated environment change corresponding to the scheduled date of the work to be executed, instructs the model conversion unit 8 according to the designation. Then, the model 2 is changed and the like.

Therefore, the environment change table 10 is configured to show the change time and the contents of the environment change, and the contents of the environment change include, for example, an increase in the amount of data in the database, an increase or decrease in the number of terminals, a change in the specifications of application software, and other actual work. Allows you to set various condition changes that occur in.

Note that a plurality of scheduled jobs can be continuously simulated by designation, or the execution can be temporarily stopped and returned to the work item screen 23 at the end of each work.

In this way, for example, when “execution” of the test work is designated, the work execution control unit 3 causes the performance simulator 6
The model 2 is instructed to simulate the movement of the system under design.

The performance simulator 6 outputs data such as response time obtained as a result of the simulation as performance data 7.

When the user finishes the test work and then executes the research work for outputting the test result, the work execution control unit 3 displays the contents of the performance data 7, for example, a task-specific response indicating the task name and the response time of the task. The time list is displayed on the display device 11.

If the next work is not registered, or if stop is specified in the registration of this test work, the work execution control unit 3 displays the work item screen.
Return to state 23.

Here, the user selects, for example, tuning work from the work item menu, and selects, for example, No. 1 "priority" shown in FIG. 6 on the tuning work selection screen 25 and incorporates it into the work schedule as described above. Suppose that the "execution" is instructed.

Therefore, the work execution control unit 3 displays the tuning work execution screen 28 for the next scheduled priority tuning work, and simulates the work of changing the priority of the task.
Referring to the model 2, a priority change screen including a list of task names of the application as shown in FIG. 7 is displayed.

The user specifies the required tasks by numbers, and how to set the priority, for example, by the numbers 1 to 3 indicating the degree of priority. Therefore, the work execution control unit 3 determines those priorities. The designation information is received and passed to the model conversion unit 8.

The model conversion unit 8 refers to the model conversion table 9 and converts the specified information into parameters necessary for simulation to change the corresponding parameters of the model 2.

The user schedules and executes the test work again, for example, and advances the system performance design work in this way, and specifies "end" in the work item menu when the required performance is obtained, for example.

Then, the work execution control unit 3 is brought into the state of the simulation end screen 31 in FIG. 3, the work schedule 5 and the work item table 4 are referred to, and the work period and the man-hours are calculated and displayed. Further, the cost is calculated based on them, and the result of comparing the obtained system performance, work progress, etc. with a certain standard can be displayed as an evaluation of the system performance design work.

〔The invention's effect〕

As is clear from the above description, according to the present invention, the system performance design work of the computer system can be simulated and evaluated, so that it becomes economically possible to educate personnel or confirm the work plan. It has a remarkable industrial effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention, FIG. 2 is a block diagram showing a configuration example of a computer, FIG. 3 is a diagram showing a flow of simulation, and FIG. 4 is a diagram illustrating an example of a work schedule screen. 5 is a diagram illustrating an example of a work item screen, FIG. 6 is a diagram illustrating an example of a work selection screen, and FIG. 7 is a diagram illustrating a priority screen. In the figure, 1 is an initial model configuration unit, 2 is a model, 3 is a work execution control unit, 4 is a work item table, 5 is a work schedule, 6
Is a performance simulator, 7 is performance data, 8 is a model conversion unit, 9 is a model conversion table, 10 is an environment change table,
11 is a display device, 12 is an input device, 13 is a storage device, 14 is a processing device, 20 is a device loading menu screen, 22 is a work schedule screen, 23 is a work item screen, 24-26 are work selection screens, 27
-30 shows an execution screen.

Claims (1)

[Claims] 1. A system performance design work simulator for simulating a design work for designing a computer system for processing a required work with a required system performance, which comprises a performance simulation means and a work simulation means. The performance simulation means comprises means (1) for constructing a model (2) of the computer system by inputting initial design data of the computer system, and means for changing the model by inputting design change data of the computer system. (8) and a performance simulator (6) for simulating the operation of the computer system based on the model and generating predetermined performance data (7), wherein the work simulation means is configured to perform a predetermined work. The work specification input selected from the items is judged to be valid based on the specified constraint conditions. A schedule (5) of the design work is generated in accordance with the appropriate designation, and each work is sequentially executed according to the schedule by setting predetermined necessary environment changes, and executing the pseudo work. A system performance design work simulator comprising work execution control means (3) for driving the performance simulation means when necessary according to the work.