JPH04199434A - Method and device for diagnosis of computer - Google Patents

Abstract

PURPOSE:To attain a test where both input/output and arithmetic operations can be simultaneously tested by performing the automatic and mutual switch between two tasks provided in a tested computer. CONSTITUTION:A test controller 1 is provided together with a tested computer 3, a tested computer connector 2, and a test standard computer 6 which produces the test standard data. Then a CPU arithmetic task 4 and an input/output inspection task 5 which are contained in the computer 3 perform the tests at one time based on the test data given from the controller 1. Thus both tasks 4 and 5 are automatically switched to each other and both input/output and arithmetic operations are simultaneously carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a computer diagnostic device that performs a simultaneous execution test of a CPU calculation task and an input/output verification task.

[Conventional technology] FIG. 3 shows a conventional computer diagnostic device.

(1) is the test control device, (2) is the computer under test connector that connects the test control device (1) and the computer under test (3), and (6) is the test standard connected to the test control device (1). It's a computer. The computer under test (3) includes an input management means (15), an input buffer (1
6), test pattern extraction means (17), test execution memory (18), test result editing means f19), output cover/
CP consisting of a sofa (20) and an output management means (21)
It has a U calculation task (4).

FIG. 4 is a flowchart showing an algorithm by which the conventional computer diagnostic device performs an execution test of CPU operations.

In the above-mentioned conventional computer diagnostic device.

First, the input management means (15) inputs the input buffer (16).
) starts inputting test data from the test control device (1, 1) (22), and when the input to the input buffer (16) is completed, a test pattern is extracted from the input buffer (16) based on the input data. A test pattern is extracted (23) by the means (17), and a test is performed in the test execution memory (18) (24).The test result is edited and the test result is output to the output buffer (20) (27) L The test is repeated until the input buffer (16) runs out of input data (20).When the output buffer (20) is full, the output data is started to be output to the test control device (1) (27). ).If the input of test data from the test control device (1) is not completed, the input buffer (1)
Input of test data is started at 6), and if completed, the operation is ended (28).

Since the conventional computer diagnostic apparatus is composed of only one task as described above, it only performs an execution test of CPU operations.

[Problems to be Solved by the Invention] Conventional computer diagnostic devices perform execution tests using only a single task as described above.

I was only able to perform an execution test of CPU calculations. For this reason, there have been problems such as the inability to perform tests for simultaneous execution of input/output and arithmetic operations.

This invention was made in order to solve the above-mentioned problems, and it is an object of the present invention to obtain a computer diagnostic device and a diagnostic method that can automatically switch between two tasks and perform a simultaneous execution test of input/output and arithmetic operations. The purpose is to

[Means to solve the problem] The computer diagnostic device related to this invention is:

An input buffer for inputting test data from a test control device, an input management means for inputting test data into the input buffer, a test pattern extraction means for reading test data from the input buffer, an output buffer for storing test results, and a test result. A CPU calculation task and an input/output verification task are provided, each having a test result editing means for editing and outputting the data to an output buffer, and an output management means for outputting output data of the output buffer to a test control device.

[Operation] In this invention, two tasks are switched and controlled,
Performs a simultaneous execution test of CPU operations and input/output verification.

[Embodiment] FIG. 1 is an overall configuration diagram of an embodiment of a computer diagnostic device according to the present invention. As is clear from FIG. 1, this embodiment includes a test control device (1) that controls the test, a computer under test (3), and a test device that connects the test control device (1) and the computer under test (3). A test computer connection connector (2) and a test reference computer (6) for creating test reference data are provided, and a CPU calculation task (4) and an input/output verification task (5) provided in this computer under test (3) are provided. ) are configured to perform concurrent tests based on test data from the test control device (1).

FIG. 2 is a flowchart showing an algorithm by which the computer diagnostic device performs a simultaneous execution test of input/output and arithmetic operations.

In the above-mentioned computer diagnostic device, first, human input of test data from the test control device (1) is started (7).
Start execution of the input/output verification task (8). Next, when the execution of the input/output verification task is suspended (9), the CP
Start execution of the U operation task (10) and continue execution until execution of the input/output verification task starts again (11)
. When execution of the acquisition verification task starts again (11)
The execution of the CPU calculation task is temporarily stopped (12), and the test is repeated until there is no more input data (13).

If the manual input of test data from the test control device (1) is not completed.

Input of test data is started again, and if completed, the operation is ended (14).

[Effects of the Invention] As described above, according to the present invention, two tasks are provided in the computer under test (3), and the configuration is such that they are automatically switched and controlled alternately, so that input/output and calculation can be performed simultaneously. Execution tests can be performed.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of a computer diagnostic device according to the present invention, FIG. 2 is a flowchart showing an algorithm by which the computer diagnostic device performs a simultaneous execution test of input/output and arithmetic operations, and FIG. 3 is a diagram of a conventional computer diagnostic device. FIG. 4 is an overall configuration diagram showing the computer diagnostic device, and is a flowchart showing an outline of the processing procedure of the conventional computer diagnostic device. In the figure, (I) is the test control device, (2) is the connector connected to the computer under test, (3) is the computer under test, (4) is the CPU calculation task, (5) is the input/output verification task, and (6) is the computer under test. ) is the test reference computer, (15
) is the input management means, and (16) is the input buffer. (17) is test pattern extraction means, (18) is test execution memory, (19) is test result editing means, (20)
211 is an output buffer, and 211 is an output management means. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Claims] (1) Output test data and input test results to a test reference computer that creates test reference data, a connector for connecting the computer under test, a computer under test, the computer under test, and the test reference computer, A computer diagnostic device consisting of a test control device that controls the test starts inputting test data from the test control device, extracts a test pattern based on the input data, performs a test using the test pattern, and reports the test results. Simultaneously performs the CPU calculation task and input/output verification task that edits the output data, outputs the output data to the test control device, and outputs the test results to the test control device while repeating the test until all test data input from the test control device is completed. A computer diagnostic method characterized by performing an execution test. (2) In the above computer diagnostic device, the computer under test includes an input buffer for storing test data from the test control device, an input management means for inputting the test data into the input buffer, and a test based on the input data of the input buffer. a test pattern extraction means for extracting a pattern and outputting it to a test execution memory; an output buffer for storing test results;
C that executes a test result editing means that edits the test results from the test execution memory and outputs them to the output buffer, and an output management means that outputs the output data of the output buffer to the test control device.
A computer diagnostic device equipped with two tasks: a PU calculation task and an input/output verification task.