JPH0385648A - Operation history information recording system for program - Google Patents

Abstract

PURPOSE:To grasp the operation history information of a program as a time series by storing the counted contents of a counting means common for each function unit to each operation history information storage area, and changing the contents of the counting means in conformity to definite logic. CONSTITUTION:When a central processing unit (CPU) 1 records the operation history information of a display control device 3, a circuit control device 4, an input/output control device 5 or the CPU 1 to a memory 2, it records the contents of the counter existing alone in the memory 2 together with the operation history information itself, and next, it updates the contents of the counter in conformity to the definite logic so as to make them capable of being discriminated as the time series. Thus, each record on the operation history information of the program for every function unit recorded in an independent area respectively can be grasped at the time series. Accordingly, it can be grasped as the time series when what function how operated in one electronic computer system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for recording program operation history information in an electronic computer system.

[Prior art]

In one computer system, display control program, line control program, input/output control program, CPU
There are a plurality of program units with different functions, such as control programs, and unique program operation history information for each functional unit is recorded in independent specific areas on the memory.

This is because each unit of the program has different functions.
Since there is little common information in the operation history information of programs to be recorded, the contents of the program operation history information are unified, and the operation history information of all programs is uniquely specified on the memo that is common to all programs. This is due to the difficulty of recording in the area.

Furthermore, even if the above-mentioned difficulties were removed and the operation history information of all programs could be recorded and aggregated in a single specific area on the memory common to all programs,
Since it is extremely difficult to refer only to the operation history information of a program with a certain function, it is necessary to record each functional unit in an independent specific area on the memory as described above. There is.

[Problem to be solved by the invention]

However, in the above-mentioned conventional method of recording program operation history information, program operation history information recorded for each functional unit is used to record information about which functional unit, when, and how the program operated within a single computer system. The problem was that it could not be interpreted as a time series.

The present invention has been made in view of the above-mentioned problems, and it solves the above-mentioned problems, and allows the operation history information of multiple programs to be analyzed in a single computer system, such as which functional unit operated when and how. The object of the present invention is to provide a method for recording program operation history information that can be captured as a time series.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention dedicates a unique area in the memory of a computer to a variable that can have any value and can be changed to any value (hereinafter referred to as 1 counter). When recording operation history information of a program executed by the central processing unit, the central processing unit records the contents of the counter at the same time every time it records the operation history information of one unit, and It is characterized by updating the contents of.

[Effect]

As described above, when the central processing unit records a unit of operation history information in a specific area of memory, it records the contents of the counter along with the operation history information itself, and then identifies the contents of the counter as a time series. Since the information is updated as much as possible, each record of program operation history information for each functional unit, which is recorded in each independent area on the memory, can be viewed as a time series.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1(a) is a block diagram showing an example of the system configuration of a computer to which the program operation history information recording method of the present invention is applied, and FIG. FIG. 2 is a diagram showing the configuration of registers of a CPU. The same figure (a
), (b), 1 is a central processing unit (CPU) that controls the entire system and performs operation history acquisition processing;
1a is an address register (AR) in the central processing unit (CPU) 1, 1b is a data register (DR) lb in the central processing unit (CPU) i, and 2 is a processing program for the central processing unit (CPU) 1. 3 is a display control unit (DCU); 4 is a line control unit (LCU); and 5 is an input/output control unit. A device (IOC) 6 is a bus that connects each of the above devices. FIG. 2 is a diagram showing a memory layout showing an operation history storage area in the memory (MEM) 2. As shown in FIG. In the figure, 11 is a pointer indicating a position (operation history storage address) where the operation history is to be stored, and 12 is a storage area for operation history information. Further, aO to a5 indicate addresses, and have the following relationship.

aO≦al<a2≦a5 aO≦a3<a4≦a5 FIG. 3 shows the display control unit (DCU) 3. Line control device (L
CU) 4, each control program activated by each hardware interrupt of the input/output control unit (IOC) 5 and central processing unit (CPU) 1, each operation history acquisition processing program 13, 14, 15.16, each operation It is a diagram showing the logical positional relationship with the history information storage area 1B, 19°20.21 and the only counter 17 existing in the memory (MEN) 2. The events for which the operation history should be recorded are the display control unit (DCU) 3, the line control unit (LCU) 4, and
Input/output control unit (IOC) 5 or central processing unit (CPU
) 1, the central processing unit (CPU) 1 activated by the interrupt takes out each processing program from the memory (MEM) 2 and executes it.

The format of the processing program executed by the central processing unit (CPU) 1 is shown in FIGS. 4(a) and 4(b). The same figure (a
), (b), it is assumed that the program includes a process for acquiring the operation history (operation history acquisition process).

A flowchart showing the procedure of this operation history acquisition process is shown in FIG. In the same figure, 22 records the contents of the counter (C1) 17 shown in FIG. 3 for each - unit of operation history;
Indicates the process to update. Here, the operation history of − units is
This refers to the period from when a program instruction is received until the processing operation is completed.

Next, the procedure of the program's operation history acquisition process will be explained based on the fifth image's floor chart and with reference to the record example of the operation history acquisition process shown in FIG. In the initial state, it is assumed that the pointer 23 indicating the operation history storage address indicates the start address of the operation history storage area 24.

Further, it is assumed that the counter (C1) 17 in FIG. 3 has an arbitrary initial value.

First, the central processing unit (CPU) 1 retrieves the operation history storage address using the pointer 23 of the memory (MEM) 2.
Address register (AR) in central processing unit (CPU) i
) 1 Store in a (Sten = 7 Step Sl). Further, the contents of the counter (CI) 17 are stored in the data register (DR) lb (step). Then, the data register (DR) is placed in the memory (MEM) 2 at the location indicated by the address register (AR) 1a.
) lb contents. Next, a certain value is added to the contents of the counter (C1) 17 on the memory (MEM) 2 (
Practically, 1 is added) (step S3). The length of the content counter of address register (AR) 1a is added to update the operation history storage address (step 4).

Next, the central processing unit (CPU) 1 retrieves the operation history information from the memory (MEM) 2 (or other control device),
Store in data register (DR) lb. Then, the contents of the data register (DR) 1b are stored in the memory (MEM) 2 at the location indicated by the address register (AR) 1a (step S5), and the address register (A
R) Add the length of the operation history information to 1a to update the operation history storage address (step S6). After that, the central 8 processing unit (CPU) 1 uses the address register (AR) la.
The contents of are stored in the pointer 23 of the memory (MEM) 2 (step S7). In this way, a single piece of operation history information is recorded in the operation history information storage area 24 of the memory (MEM) 2.

FIG. 6 shows an example of records recorded by the operation history acquisition process in this manner. In the same figure, 26.27 is the fifth
28 shows counters recorded by process 22 in the figure;
．． Reference numeral 29 indicates one unit of operation history recorded by the operation history acquisition process.

Each operation history information storage area 1 obtained according to the above procedure
8, 19, 20.21 (see FIG. 3) are acquired for each - unit of operation history information.

The counters 26 and 28 ensure orderliness according to a certain logic (specifically, the added value of the counter (C1) 17).

〔Effect of the invention〕

As explained above, according to the present invention, each functional unit has a common counting means, the counting contents of the counting means are stored in each operation history information storage area, and the contents of the counting means are stored according to a certain logic. Since the program's operation history information, which is recorded independently for each functional unit, can be interpreted as a time series of which functional units operated, when and how within a single computer system. You can get excellent results.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a computer system to which the operation history information recording method of the present invention is applied, FIG. 2 is a diagram showing a memory layout showing an operation history storage area, and FIG.
The figure shows the logical positional relationship between each program, each operation history information storage area, and the counter. Figures 4 (a) and (b) are diagrams showing the configuration of the program that acquires operation history. Figure 5 is a flowchart of the procedure of operation history acquisition processing, No. 6
The figure is a diagram showing an example of recording by the operation history acquisition process. In the figure, 1... central processing unit (CPU), 2...
Memory (MEM), 3...Display control unit (DCU)
, 4... line control unit (LCU), 5... input/output control unit (IOC), 6... bus.

Claims (1)

[Claims] In a program operation history information recording method for a computer system in which there are multiple program units with different functions and each functional unit records its own program operation history in an independent specific area on memory, each functional unit An operation history information recording method for a program having a common counting means, storing the counted contents of the counting means in each operation history information storage area, and changing the contents of the counting means according to a certain logic. .