JPH05298155A - System evaluating and analyzing device - Google Patents

Abstract

PURPOSE:To recognize the activated state of a system during the operation of the system by writing and arranging data required for the evaluation and the analysis of the system every time a specified event is generated in a memory shared by programs in the system. CONSTITUTION:This evaluating and analyzing device for the system first allocates a memory 5 for writing the data in the programs 3 and then performs processing for preventing the system from falling into deadlock. Then, the data relating to the generation state of the event for which an user defined is written in the memory 5. Then, the data written inside the collection interval of the data from the point after being read by last time to the present point of time is read and collected. The collected data are classified and arranged based on identifiers indicating the kinds of respective data included in the data, and is provided through a data display part 6 to a user using an evaluating and analyzing tool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for evaluating / analyzing a system when knowing information such as an occurrence state of an event defined by a user in a computer system.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing a schematic structure of an evaluation tool in a conventional system evaluation / analysis apparatus. In the figure, 6 is a data display unit, 7 is an operating system (OS), 8 is a cumulative counter in the operating system 7, and 9 is a system evaluation tool such as sar provided in the conventional UNIX-operating system. ..

The evaluation tool 9 shown in FIG. 4 samples the data of the cumulative counter 8 in the operating system 7 and provides it to the user. In addition, the evaluation tool 9 uses data related to the use of system resources such as CPU (central processing unit) activity, memory activity, and input / output activity in the computer system at regular intervals specified by the user. It is collected from the cumulative counter 8 managed by the system 7 and provided to the user through the data display unit 6.

FIG. 5 is a block diagram showing a schematic configuration of an analysis tool in a conventional system evaluation / analysis apparatus.
In the figure, 7 is an operating system, 10 is a conventional analysis tool, and 11 is a recording file.

The provision of event data to the user by the analysis tool 10 shown in FIG. 5 is provided by the operating system 7, which records a history of pre-specified events in the recording file 11, This is realized by the data display unit 6 (see FIG. 4) referencing the recorded recording file 11. Further, in the analysis tool 10, an event for which history is desired to be collected is set in advance, and when the event occurs, data is written in the recording file 11.

[0006]

In the conventional system evaluation / analysis apparatus as described above, it is not possible to know the utilization status when a new input / output device or the like is added to the computer system. There was an inconvenience. Further, there is a problem that it is extremely difficult for the system designer to know the occurrence status of an event affecting the execution of the newly defined computer system during the operation of the system.

The present invention has been made in order to solve the above-mentioned problems, and the system activity status based on the information such as the occurrence status of the event defined by the user in the computer system is displayed during the operation of the system. The purpose is to obtain a system evaluation / analysis device that can be known.

[0008]

The evaluation / analysis apparatus for a system according to the present invention is a means for providing event data in the system, and has a mechanism for providing data before and after an event request to the system by a program. Each time a specific event occurs in the memory shared by the programs in the system, the data necessary for system evaluation / analysis is written, and the means for collecting the event data in the system uses the data. The data written during the data collection period is collected from the memory shared by the programs in the system in which the data is written, while confirming the validity of the data, and also has an identifier indicating the type of the data in the data. They are classified into and.

[0009]

In the system evaluation / analysis apparatus of the present invention, the means for providing the event data in the system is added to the program for giving the operation to the system, and provides information that can be known in the program to the outside. At this time, a memory shared between the programs in the system is used as a medium for providing the event data from the program to the outside. Since this memory is used as a circular buffer, the data may be written unilaterally.However, the data to be written should have the data identifier and time data so that it can be easily classified when the data is collected later. Include it.

Further, the means for collecting event data in the system collects data from the memory shared by the programs in the system at regular intervals. At this time, the next point read at the end of the previous time is collected. The data between the points written by the means for providing the above event data up to the present is regarded as data indicating the activity of the system within a certain period, and the data is collected. Also, by comparing the time data in the data on the memory and confirming that the information on the memory has not been lost by overwriting, as a result, the normally obtained data is the data included in the data. Classify based on the identifier that indicates the type and provide it to the user.

[0011]

【Example】

Example 1. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a system evaluation / analysis apparatus according to a first embodiment of the present invention. In the figure, 1 is a mechanism related to means for a program to provide event data, 2 is a mechanism related to means for collecting data written by a program that provides event data, 3
Is a program that operates in the system, and a program function for providing event data is embedded in this program 3. Here, two programs 3 are used. Reference numeral 4 is an evaluation / analysis tool created by the present invention, 5 is a memory shared between the program 3 and the evaluation / analysis tool 4, and 6 is a data display unit.

FIG. 2 is a flow chart for explaining the operation of writing data to the memory shared between the programs in the system in the evaluation / analysis apparatus of this system of FIG. 1, and FIG. 3 is the evaluation / analysis of the system of FIG. 8 is a flowchart for explaining the operation of an evaluation / analysis tool that collects data in the analysis device. In FIGS. 2 and 3, 18 to 38 are steps showing the process of the operation process.

Next, the operation of the evaluation / analysis apparatus for the system shown in FIG. 1 will be described. FIG. 2 is a flow chart showing a means for the program 3 to write the event data to the memory 5 in the evaluation / analysis apparatus of the system of the present invention. In addition to the area in which data is written from the program 3, the memory 5 has an indicator portion (not shown) that guides the writing of data on the memory 5 and the point. Writing data by the program 3 that provides event data is realized by performing the following operation.

First, the memory 5 for writing data to the program 3 is allocated (step 18). afterwards,
The program 3 prevents the system from falling into a deadlock while having the exclusive access right while writing data to the memory 5. As a means for avoiding the deadlock in the access to the memory 5, the current mask for the signal affecting the behavior of the program 3 is temporarily stored (step 1
9) Then, the processing of the signal for stopping the program 3 is set to be put on hold (step 20).

Next, the memory 5 assigned to the program 3 is exclusively accessed (step 2).
1). At this point, if another program 3 is writing data to the memory 5, the execution of the program 3 is temporarily suspended. In this way, it is determined whether or not the memory 5 can be accessed (step 22), and if the memory 5 can be accessed, the indicator portion ( (Not shown) is read (step 23). Then, a process for forming a circular buffer is performed on the value read from the index portion to obtain a new writing point (step 24).

When the processing up to this point is completed, the data on the event is written in the memory 5 (step 25).
When the writing of the data to the memory 5 is completed, the point at which the current data is written is written in the indicator portion on the memory 5 (step 26), and the memory 5 is released from the exclusive access (step 27). At this point, the risk of causing a deadlock in the portion where the data is written to the memory 5 is released, so the mask for the external signal is reset to the original one that was previously recorded and saved. The setting of the hold status for is canceled (step 28). Finally, the use of the memory 5 is abandoned (step 2
9).

FIG. 3 is a flow chart showing the operation of the evaluation / analysis tool for collecting data in the evaluation / analysis apparatus of the system of the present invention.

First, the evaluation / analysis tool 4 allocates the memory 5 to the program 3 (step 30). The following is a process for every fixed time. When it is time to collect data, first, the point at which the program 3 has written the data up to the present time is obtained from the index section on the memory 5 (step 31). Then, the time data on the memory 5 at the point where the last data was read is read again and compared with the time data at the same point that was held at the last time (step 32). Here, since the memory 5 is used as a circular buffer, if this time data is different, unread data on the memory 5 may have been overwritten. In that case, the area of the memory 5 is A large amount is secured, or the interval for collecting data in the memory 5 is shortened to prevent overwriting.

Next, the data written out within the data collection interval from the next point read up to the previous time to the present time is read and collected (step 33). The evaluation / analysis tool 4 regards the above data as related to the event processed by the system during the data collection interval. The collected data is classified and organized based on the identifiers representing the types of data contained in the data (step 3
4) It is provided to the user who uses the evaluation / analysis tool 4 through the data display unit 6 (step 35). After executing the above processing and waiting for a predetermined time (step 3
6) Then, it is judged whether or not the above processing is surely completed (step 37), and if the processing is completed, finally the use of the memory 5 is abandoned (step 38).

In the above embodiment, a plurality of programs 3
Although the case of creating the evaluation / analysis tool 4 of the system consisting of is explained, when the program 3 for writing out data is used as a device for the means for providing the data and the means for collecting the data, the program 3 It can also be used as a debug tool for a single program to check the operation of.

In the above embodiment, when the number of programs 3 for providing data is one, when writing data to the memory 5, settings such as exclusive control and suspension of processing for signals from the outside are set. There is no need to do it.

Further, in the above embodiment, when a series of flows in the means for providing data is embedded in the library function and the program creator intends to use the library function, it is ensured without burdening the user. Event data can be written to the memory 5.

[0023]

As described above, according to the system evaluation / analysis apparatus of the present invention, the means for providing the event data in the system is a mechanism for providing the data before and after the event request to the system by the program. Using the function, each time a specific event occurs in the memory shared by the programs in the system, the data necessary for system evaluation / analysis is written, and the means for collecting the event data in the system is used. , An identifier that indicates the type of data in the data, while collecting the data written during the data collection period from the memory shared by the programs in the system where the data is written, while confirming the validity of the data Since it is categorized based on, the data related to the occurrence of events, which is the information that you want to know while the system is operating, It is possible to know the activity status of the system during the operation of the system such as the value of variables in the program, the status of success or failure of the request, and to manage the data processing easily and surely. It has an excellent effect.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a system evaluation / analysis apparatus that is a first embodiment of the present invention.

FIG. 2 is a flowchart for explaining an operation of writing data in a memory shared between programs in the system in the evaluation / analysis device of the system in FIG.

FIG. 3 is a flowchart for explaining the operation of an evaluation / analysis tool that collects data in the evaluation / analysis device of the system of FIG.

FIG. 4 is a block diagram showing a schematic configuration of an evaluation tool in a conventional system evaluation / analysis apparatus.

FIG. 5 is a block diagram showing a schematic configuration of an analysis tool in a conventional system evaluation / analysis apparatus.

[Explanation of symbols]

1 Mechanism related to means for providing event data 2 Mechanism related to means for collecting data written by a program providing event data 3 Program 4 Evaluation / analysis tool 5 Memory 6 Data display section 7 Operating system (OS) 8 Cumulative counter 9 Evaluation Tool 10 Analysis Tool 11 Record File 18-38 Steps

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[Procedure amendment]

[Submission date] August 21, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

Claims (1)

[Claims] 1. A means for providing event data in the system such as a status of issuing a specific request from a user program to a computer system and service information from the computer system, and a means for providing this event data. It is shared between each program of the means for collecting event data in the system that confirms and classifies the validity of the data and the means for providing the event data and the means for collecting the event data. A system evaluation / analysis device characterized by having a memory.