JP2917939B2 - Server performance measurement method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a server performance measuring method for a client / server type system, and more particularly to a method for measuring the number of transactions to be processed simultaneously when a server processes a plurality of transactions simultaneously in response to requests from a plurality of clients. The present invention relates to a server performance measurement method for automatically measuring a time relationship required for processing each transaction.

[0002]

2. Description of the Related Art For example, as a performance evaluation method of a computer system or the like, there is a performance evaluation method of an online system described in Japanese Patent Application Laid-Open No. Hei. In this performance evaluation method, means for measuring the response time of a host computer to a transaction without using an actual terminal and evaluating the performance of the host computer is disclosed.

FIG. 8 is a block diagram showing a configuration of a computer system performance evaluation system.

In FIG. 8, a performance evaluation method of a computer system is based on a communication processing device 90 for simulating a real terminal.
A console 96 for providing the communication processing device 90 with measurement conditions such as the number of real terminals to be simulated and a transaction interval to be transmitted to the host computer 100;
It comprises an input transaction file unit 93 in which a plurality of transactions necessary for the performance evaluation of the host computer 100 are stored, and a performance evaluation data storage unit 94 in which measurement results of the performance of the host computer 100 are stored.

The communication processing device 90 includes a terminal simulation control unit 91 serving as an interface unit for the input transaction file unit 93 and the performance evaluation data storage unit 94.
And receives the transaction from the terminal simulation control unit 91 and transmits it to the host computer 100, and the host computer 10 for the transmitted transaction.
A performance evaluation control unit 92 that receives the response data from 0, calculates the time required for processing the transmitted transaction (response time), and returns the response time data to the terminal simulation control unit 91; It comprises a performance evaluation data output unit 95 that processes the performance evaluation data stored in the storage unit 94, creates and outputs a predetermined performance evaluation list.

In such a configuration, the terminal simulation control section 91 reads a necessary transaction from an input transaction file section 93 in which a transaction to be transmitted to the host computer 100 is stored.
This is transmitted to the performance evaluation control unit 92.

[0007] The performance evaluation control unit 92 transmits the transaction received from the terminal simulation control unit 91 to the host computer 100, and measures the transmission time. Also, while receiving response data (processing data) from the host computer 100 for the transmitted transaction, the reception time is measured,
The response time to the transaction is calculated from the difference between the transmission time and the reception time. And the host computer 1
The response data from 00 and the data of the calculated response time are returned to the terminal simulation control unit 91.

[0008] The terminal simulation control section 91 stores the data received from the performance evaluation control section 92 in the performance evaluation data storage section 94. From the data stored in the performance evaluation data storage unit 94, the performance evaluation data output unit 95 outputs a response time, an average response time, a minimum response time,
The performance evaluation data such as the maximum response time is obtained, and a performance evaluation list 97 is output.

By configuring such a performance evaluation method, it is possible to simulate a real terminal by the communication processing device 90, and to evaluate the performance of the host computer 100 without using the real terminal.

Now, consider a case where the technique of the computer system performance evaluation method as described above is applied to a client / server type system.

In recent years, servers often process transactions in a multi-process, multi-thread, and multi-CPU environment, and it has become common sense to process a plurality of transactions simultaneously. Therefore, in order to evaluate the performance of the server, it is necessary to measure a server performance characteristic indicating the relationship between the number of transactions processed simultaneously and the time required for processing each transaction (response time).

[0012]

However, in the server performance measurement method as described above, since the response time of the server with respect to the number of transactions must be obtained by one processing device to obtain the server performance characteristics, it is very difficult. It was necessary to use a high-performance processing device.

When the number of transactions to be processed simultaneously is increased without using a high-performance processing device, the entire measurement system is limited by the processing performance of the processing device, so that accurate server performance characteristics can be obtained. Will be gone.

Incidentally, in order to obtain accurate server performance characteristics without using a high-performance processing device, a server performance measurement method using a plurality of processing devices can be considered.

However, in such a server performance measurement system, there is a problem that it is difficult to synchronize the measurement start timings of the plurality of processing devices.
Further, it is necessary to distribute the transaction to each of the plurality of processing devices, and the measured data must be collected from each of the processing devices. This causes a problem that the processing becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and can easily and accurately measure the server performance characteristics of a client / server type system. The purpose is to provide a server performance measurement method.

[0017]

In order to achieve the above object, a server performance measuring method according to the present invention provides a server which processes a transaction transmitted from at least one client, the number of the transactions being processed simultaneously with respect to the number of the transactions to be processed simultaneously. A server performance measurement method for measuring a server performance characteristic indicating a response time required for processing, wherein a transaction definition file storing definition information for creating the transaction and the response time data are stored. One transaction is created from the transaction result file and the definition information stored in the transaction definition file, transmitted to the server, the transmission time is stored, and response data to the transaction from the server is received. A transaction start control unit that calculates the response time from the difference between the reception time and the transmission time, and stores the calculation result of the response time as the response time data in the transaction result file; At the time of the characteristic measurement, used to control the server performance characteristics, by referring to or rewriting a plurality of state values indicating the measurement state, while controlling so that the number of transactions to be transmitted is sequentially increased, And a measurement synchronization control unit configured to control the plurality of transactions to be transmitted to the server in a synchronized manner.

At this time, a transaction definition file group that holds the definition information required for each of the plurality of measurement clients, and a transaction result file group that stores the data of the response times measured by the plurality of measurement clients. And a measurement data server comprising: a result totaling unit configured to output the server performance characteristics from the response time data stored in the transaction result file group. Prior to the measurement, the predetermined definition information is read from the transaction definition file group, and a measurement preparation control unit for transferring the definition information to the transaction definition file is stored in the transaction result file after the measurement of the server performance characteristics is completed. When said response Of a measuring post-processing control unit for transferring data to said transaction result files may be provided, respectively.

Further, a cycle counter which is sequentially increased according to the number of the measurement clients transmitting the transaction and a transaction required for the server performance measurement are transmitted to the measurement data server at the time of the server performance measurement. End cycle number storage means for holding the maximum value of the number of measurement clients, the measurement preparation control unit, the client number uniquely assigned to identify the self measurement client, the value of the cycle counter If the value is larger than the threshold value, the process goes to a standby state and performs no processing, and the post-measurement process control unit performs the measurement when the value of the cycle counter is less than the maximum value held in the end cycle storage unit. The preparation control unit may be restarted.

In the server performance measurement method configured as described above, the transaction start control unit of each measurement client calculates the transaction transmission and the response time to the transaction, and is therefore limited by the processing performance of the measurement client. Nothing.

Before measuring the server performance characteristics,
Since the necessary transaction definition information is transferred to the transaction definition file, there is no need to distribute the transaction. Similarly, since the response time data stored in the transaction result file is transferred to the measurement data server after the measurement end timing of the server performance characteristic is detected, there is no need to collect the contents of the transaction result file.

[0022]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the server performance measurement system of the present invention. FIG. 2 is a graph showing an example of a measurement result of the server performance measurement method shown in FIG.

In FIG. 1, a measured server 1 to be measured by the server performance measuring method of the present invention includes a transaction processing program 10 for processing each transaction, a database 11 used for processing the transaction, It is a server in a client / server business system that has an arithmetic processing unit (not shown) that performs processing according to the program 10 and that processes a specific business.

The server performance measuring method according to the present invention comprises a plurality of measuring clients 3 for simulating a client transmitting a transaction to the measured server 1 in order to measure the performance of the measured server 1; It comprises one measurement data server 2 serving as a database commonly used by the measurement clients 3 when measuring characteristics.

Each measurement client 3 and the server under measurement 1
Each of the measurement clients 3 and the measurement data server 2 are connected by a transmission path for transmitting information. A transmission path connecting each measurement client 3 and the measured server 1 is provided with a transaction communication channel 5 through which a transaction and its response data are transmitted. On the other hand, a transmission path connecting each measurement client 3 and the measurement data server 2 includes a transaction definition file transfer channel 6 for transmitting definition information for creating a transaction transmitted from each measurement client 3 to the server; A transaction result file transfer channel 7 through which measurement data such as a response time to a transaction is transmitted;
And a synchronization information transfer channel 8 for transmitting a plurality of state values indicating a measurement state used for synchronizing the measurement operation.

The transaction is transmitted from each measurement client 3 to the server under measurement 1 via the transaction communication channel 5. The measured server 1 processes the transaction transmitted from each measurement client 3 and returns response data for each transaction to the corresponding measurement client 3 via the transaction communication channel 5.

When measuring the server performance characteristics,
Of the plurality of measurement clients 3, first, one transaction is transmitted from one measurement client 3 to acquire measurement data, the next is from two measurement clients 3, the next three, and so on. The number of measurement clients 3 that transmit transactions is increased one by one, and the response time of the server is measured. At this time, each measurement client 3 has transaction definition information for the number of times of participating in the measurement. In addition, the measurement client 3 participating in the next measurement waits until the time of the measurement start, and after the response data to the transaction is returned from the measured server 1 in the immediately preceding measurement, participates in the measurement.

Further, each measuring client 3 measures the transmission time at which the transaction was transmitted and the reception time at which the response data of the transaction was received, so that the time required for the measured server 1 to process the transaction ( Response time), and the data of the response time is stored. The response time data is transmitted to the measurement data server 2, processed by the measurement data server 2, and
Is output as shown in FIG.

The graph shown in FIG. 2 is an example of the performance characteristics of the measured server 1 showing the relationship between the number of transactions processed simultaneously and the average processing time of each transaction. In general, the server performance characteristics tend to be proportional to the number of transactions to be processed simultaneously as shown in FIG.

The graph shown in FIG. 2 shows the characteristics when the number of transactions processed by the server is changed from one to seven.

In the server performance measurement method of the present invention, since one transaction is transmitted from each measurement client 3 as described above, the number of measurement clients 3 participating in the measurement is changed from one to seven. Thus, a graph as shown in FIG. 2 can be obtained.

Next, the configuration of the measurement data server 2 and the measurement client 3 shown in FIG. 1 will be described.

The measurement client 3 has a configuration for realizing the main function. The measurement client 3 transmits a transaction to the measured server 1 and receives a response data to the transaction. Transaction definition file 33 in which the transaction definition information is stored, the time at which the transaction was transmitted, and the time at which the response data was received from the measured server 1 to calculate the time required for processing the transaction (response time). A control unit 32, a transaction result file 34 for storing response data from the measured server 1 and data of the response time calculated by the transaction start control unit 32,
It has a measurement synchronization control unit 38 for synchronizing the transaction transmission times of the plurality of measurement clients 3.

The transaction communication means 31 transmits a transaction to the measured server 1 via the transaction communication channel 5 and, when response data to the transaction is received from the measured server 1, sends the transaction response data to the transaction activation control unit 32. Reply.

The transaction activation control unit 32 reads the transaction definition information to be transmitted from the transaction definition file 33, creates a transaction, passes it to the transaction communication unit 31, and stores the time as a transmission time. In addition, the transmission time of the transaction is subtracted from the reception time of the response data from the measured server 1 received via the transaction communication unit 31, and the processing time (response time) required for processing the transaction is calculated. Then, the response time data is stored in the transaction result file 34 together with the response data for the transaction.

The measurement synchronization control unit 38 has a function of synchronizing the transaction transmission start times of the plurality of measurement clients 3, detects the timing of starting the transaction transmission, and activates the transaction activation control unit 32.

The measurement client 3 receives the transaction definition information required by the measurement client 3 from the measurement data server 2 and stores the contents of the transaction result file 34 as the measurement data in the measurement data server 2.
, A measurement preparation control unit 37 for controlling the number of measurement clients 3 transmitting the transaction, and detecting that the measurement of the server performance characteristics has been completed. A post-measurement processing control unit 39 for instructing the transfer of the measurement data stored in the file 34; and a measurement state storage unit of the measurement data server 2 used in common by each measurement client 3 (a plurality of state values indicating the measurement state are stored). And a data sharing unit 36 as an interface unit with the data sharing unit 36.

The file transfer means 35 transfers the transaction definition information stored in the transaction definition file 33 from the measurement data server 2 via the transaction definition file transfer channel 6. Also,
The response data and the response time data stored in the transaction result file 34 are transferred to the measurement data server 2 via the transaction result file transfer channel 6.

The measurement preparation control unit 37 is provided to control the number of measurement clients 3 participating in the measurement, and instructs the file transfer unit 36 to transfer definition information to the transaction definition file 33. At the same time, it instructs the measurement synchronization control unit 38 to start the operation.

The post-measurement processing control unit 39 detects that the server performance measurement has been completed, and instructs the file transfer unit 35 to transfer the data of the transaction result file 34. If the measurement has not been completed, a restart is instructed to the measurement preparation control unit 37 in order to increase the number of measurement clients 3 transmitting the transaction.

The measurement preparation control unit 37, the measurement synchronization control unit 38, and the post-measurement processing control unit 39
6, the contents of each measurement state storage means of the measurement data server 2 are referred to and rewritten as necessary.

On the other hand, the measurement data server 2 has a configuration for realizing the main function, a transaction definition file transmitted to each measurement client 3 and storing definition information of a plurality of transactions necessary for measuring server performance. A group 21 and a transaction result file group 22 in which response data and response time data for the transaction measured by each measurement client 3 are stored;
It has a cycle counter 23, a copy counter 24, a measuring counter 26, an end cycle number storage unit 27, and a start time storage unit 25 which are measurement state storage units.

The measurement data server 2 is additionally provided with a result totaling means 28 for creating a server performance characteristic 4 as shown in FIG. 2 from the data stored in the transaction result file group 22. I have.

The value of the cycle counter 23 is counted up each time data of a response time necessary to plot a graph as shown in FIG. The process is repeated.

The value of the copy counter 24 is used to control the transfer of the transaction definition file 33 and the transaction result file 34.

The value of the in-measurement counter 26 is incremented each time response time data is acquired, similarly to the cycle counter 23. The value of the in-measurement counter 26 indicates the number of measurement clients 3 participating in the measurement.

The start time storage means 25 stores the transmission start time of the transaction of the measuring client 3.

In such a configuration, before describing the operation of the server performance measurement method of the present invention, the general components that can be used to realize the above-described components of the present invention and related configurations will be described. Client / server technologies will be described, and components that can be realized using these technologies will be listed.

A computer can be used as the measurement client 3, and a client used as a client computer actually operated in a client / server type business system carried by the measured server 1 can be used.

Also, a computer can be used for the measurement data server 2, and it is a generally used file server device that can read and write files on the server from the measurement client 3. I just need. When the measured server 1 has a file server function, the components included in the measurement data server 2 can be provided in the measured server 1.

As the transaction communication means 31 and the transaction communication channel 5, those operated by the client / server type business system carried by the server under measurement 1 can be used as they are.

The transaction definition file transfer channel 6 and the transaction result file transfer channel 7 include a physical network device (LAN or WA) used as the transaction communication channel 5.
N) can be realized by using a channel that can read and write the file of the measurement data server 2 that functions as a file server, using the same as it is.

A general client computer can be used as the file transfer means 35. At this time, a file copy command may be used to transfer the file.

The values of the cycle counter 23, the copy counter 24, the in-measurement counter 26, the end cycle number storage means 27, and the start time storage means 25 are respectively stored in files on the file server which is the measurement data server 2. . In this way, the data sharing unit 36 can be easily realized by using a file read / write function and a file lock function for a file on the file server that can be generally used by a client computer.

Next, the operation of the server performance measurement system of the present invention will be described with reference to FIG. 1 and FIGS.

First, before starting the measurement of the server performance characteristics, as an initial setting, the measurer obtains the measurement data in the cycle counter 23 and the end cycle number storage means 27 of the measurement data server 2 by input means (not shown). Set a value indicating the number of times. For example, when obtaining the graph shown in FIG. 2, “1” is written in the cycle counter 23 and “7” is written in the end cycle number storage unit 27.

The copy counter 24 and the in-measurement counter 26 are initialized by setting "0". It is not necessary to set an initial value in the start time storage means 25.

The number of measurement clients 3 is equal to or greater than the number set in the end cycle number storage means 27 in advance. Since the same control program is built in each measurement client 3, each measurement client 3
When the power is turned on, the measured server 1 and the measurement data server 2
After the preparation for performing communication with the measurement is completed, the measurement preparation control unit 37 is first activated.

In the following description, an arbitrary one of the plurality of measurement clients 3 is taken as an example, and the measurement preparation control unit 37, the measurement synchronization control unit 38, the transaction start control unit 32, and the measurement Post-processing control unit 3
9 has been described. As described above, when measuring the server performance characteristics, measurement data is acquired while increasing the number of measurement clients 3 participating in the measurement one by one. Therefore, the following description also explains how the measurement clients 3 participating in the measurement of the server performance characteristics operate synchronously.

First, the operation of the measurement preparation control section 37 will be described with reference to FIG. FIG. 3 is a flowchart showing an operation procedure of the measurement preparation control unit of the server performance measurement method shown in FIG.

In FIG. 3, the measurement preparation control unit 37 first sets the client N assigned to the self-measurement client 3.
o. Is compared with the value of the cycle counter 23, and the value of the cycle counter 23 is It is determined whether or not this is the case (step 2001).

Here, the client No. Is a natural number uniquely and continuously assigned to each measurement client 3. Note that the client No. Can be easily obtained by converting from an ID (IP address, computer name, etc.) that uniquely identifies the client computer on the network.

In step 2001, the cycle counter 23
Is the client No. If it is less than the time, the process waits for the time t1 second (step 2002), and returns to the process of step 2001. In this way, the measurement client 3 sets the value of the cycle counter 23 to its own client No. Step 2001 and Step 2002 are repeated until the value becomes equal to or more than the value of, and it waits until the time to participate in the measurement of the server performance characteristic.

The value of the time t1 is set to a sufficiently large value (about several minutes) so that the cycle counter 23 is not frequently referred to.

On the other hand, in step 2001, the value of the cycle counter 23 is changed to the client No. If so,
Since the time at which the self-measurement client 3 participates in the measurement of the server performance characteristic has been reached, the process proceeds to step 2003, and first, a value obtained by adding “1” to the value of the copy counter 24 and the client No. Is determined to be equal to or not.

The value obtained by adding “1” to the value of the copy counter 24 and the client No. Is not equal to the time t
Wait for 2 seconds (step 2004), and step 200
The process returns to step 3. In this way, by repeating step 2003 and step 2004, the process waits until the file transfer to the transaction definition file 33 starts.

It should be noted that the value of the time t2 is measured by the measurement data server 2.
And a value as small as possible (several seconds) within a range where traffic on the network is not saturated.

In step 2003, the value obtained by adding “1” to the value of the copy counter 24 and the client No. If this is the case, it means that the time for starting the transfer of the file to the transaction definition file 33 has been reached.
To transfer the file.

The file transfer means 35 selects only one necessary definition information file from the transaction definition file group 21 of the measurement data server 2 and transfers it to the transaction definition file 34.

At this time, by setting a name including a client number in the file name of each file stored in the transaction definition file group 21, the file can be easily selected.

When the transfer of the file is completed in step 2005, "1" is added to the value of the copy counter 24 (step 2006). Then, the copy counter 24
Is determined whether or not the value of the cycle counter 23 is equal to the value of the cycle counter 23 (step 2007).

If the value of the copy counter 24 is not equal to the value of the cycle counter 23, the transfer of the definition information file to the transaction definition file 33 of the measurement client 3 participating in the measurement has not been completed.
After waiting for the time t3 seconds (step 2008), the process of step 2007 is re-executed, and the process waits until the file transfer of each measurement client 3 is completed. At this time, the value of the time t3 is set to the same value as the value of the time t2.

At step 2007, the copy counter 24
Is equal to the value of the cycle counter 23, the file transfer to all the measurement clients 3 participating in the measurement has been completed, and the measurement synchronization control unit 38 is activated (step 2009). Ends the processing.

Next, the operation of the measurement synchronization control section 38 will be described with reference to FIG. FIG. 4 is a flowchart showing an operation procedure of the measurement synchronization control unit of the server performance measurement method shown in FIG.

In FIG. 4, the measurement synchronization control unit 38 started by the measurement preparation control unit 37 firstly outputs the client number of the self-measurement client 3. Is determined to be “1”.

The client No. Is "1",
The time t4 (second) is added to the current time, and this time is stored in the start time storage means 25 (step 3002). The value of the time t4 is set to a value sufficiently longer than the sum of the time required to execute step 3002 and the time required to start execution of step 3004 described later. Normal,
The time is set from 60 seconds to 120 seconds or more.

At step 3001, the client No. If is not “1”, the process moves to step 3003 and the time t
Wait for 5 seconds. The value of the time t5 is set to a value sufficiently larger than the time required for executing the step 3002 and sufficiently smaller than the value of the time t4. Usually, it is sufficient to set the value to about half of the value of the time t5.

Step 3002 or step 3003
After the execution of any one of the client No. 1 reads the time stored in the start time storage means 25 by the measurement client 3 (if the client number of the self-measurement client 3 is “1”, reads the time set by the self-measurement client 3) and waits until this time (Step 3004). This allows
The transmission start times of the transactions of all the measurement clients 3 participating in the measurement can be accurately synchronized.

Next, the measurement synchronization control section 38 adds “1” to the value of the counter 26 during measurement (step 300).
5). As a result, the value of the in-measurement counter 26 becomes the same value as the number of measurement clients 3 participating in the measurement of the server performance characteristics. Note that each measurement client 3 starts the process of step 3005 at the time set in the start time storage unit 25.

Then, the transaction start control unit 32
Is activated (step 3006), the measurement synchronization control unit 3
8 ends the processing.

Next, the operation of the transaction activation control unit 32 will be described with reference to FIG. FIG. 5 is a flowchart showing an operation procedure of the transaction start control unit of the server performance measurement method shown in FIG.

In FIG. 5, the transaction start control unit 32 started by the measurement synchronization control unit 38 first reads one piece of transaction definition information from the transaction definition file 33 (step 400).
1) A transaction to be transmitted is created and transmitted to the measured server 1 via the transaction communication means 31, and the transmission time is stored. (Step 400
2).

Next, response data from the server under measurement 1 to the transmitted transaction is received via the transaction communication means 31 and the reception time is stored (step 4003).

After storing the reception time, the response time for the transmitted transaction is calculated from the difference between the reception time and the transmission time, and the transaction response data and the response time data are stored in the transaction result file 34 (step 4004).

Then, it is determined whether or not all the transactions (one or two or more) have been transmitted (step 4005). If the transmission has not been completed, the process returns to step 4001, and the above-mentioned steps 4001 to 4
Step 004 is repeated.

When transmission of all the transactions is completed, an instruction to start the post-measurement processing control unit 39 is issued (step 4).
006), the transaction activation control unit 32 ends the processing.

Next, the operation of the post-measurement process control section 39 will be described with reference to FIG. FIG. 6 is a flowchart showing an operation procedure of the post-measurement-end processing control unit of the server performance measurement method shown in FIG.

In FIG. 6, the post-measurement process control unit 39 started by the transaction start control unit 32 first subtracts “1” from the value of the in-measurement counter 26 (step 5001).

In the plurality of measurement clients 3 participating in the measurement of the server performance characteristics, there is no guarantee that the post-measurement process activation unit 39 will be activated at the same time. Is determined (step 500).
2) If the value of the counter 26 during measurement is not “0”,
Assuming that all the measurement clients 3 have not completed the measurement, the system waits for a time t6 seconds (step 500).
3) Re-execute the process of step 5002. At time t6, a sufficiently large value equal to the time t1 is set.

If the result of the determination in step 5002 is that the value of the in-measurement counter 26 is “0”, it means that the measurement processing has been completed in the measurement clients 3 participating in all the measurements.

Next, the post-measurement processing control section 39 sets the value of the copy counter 24 and the client No. It is determined whether or not the value is the same (step 5004).

At step 5004, the copy counter 24
And the client No. Is not the same as
Transaction result file 34 storing measurement results
, It is considered that the time to transfer the file to the measurement data server 2 has not arrived, and after waiting for a time t7 seconds (step 5005), the process returns to step 5004. At this time, the value of the time t7 is set to the same value as the time t2.

At step 5004, the value of the copy counter 24 and the client No. If the value is the same, an instruction is issued to the file transfer means 35 to transfer the contents of the transaction result file 33 to the measurement data server 2 (step 5006).

The file transfer means 35 selects one file from the transaction result file group 22 and transfers the measurement data stored in the transaction result file 34 of the self-measurement client 3 to this file.

At this time, the client number is added to each file name of the transaction result file group 22.
By designating a name that includes “!”, This file can be easily selected.

When the file transfer is completed, "1" is subtracted from the value of the copy counter 24 (step 500).
7) It is determined whether or not the value of the subtracted copy counter 24 is “0” (step 5008).

If the value of the copy counter 24 is not "0", it is regarded that the transfer of the transaction result file 34 of the measurement client 3 participating in the measurement has not been completed, and after waiting for a time t8 seconds (step 5).
009), the processing of step 5008 is executed again.

When the value of the copy counter 24 is “0” in step 5008, it means that the measurement data from all the measurement clients 3 participating in the measurement has been stored in the transaction result file group 22.

Next, the value of the cycle counter 23 is compared with the value of the end cycle number storage means 27, and it is determined whether or not all measurement data necessary for plotting the server performance characteristics has been obtained (step 5010). ).

When the value of the cycle counter 23 and the value of the end cycle number storage means 27 are the same, it is considered that all the measurements have been completed, and after waiting for a time t9 seconds (step 5011), the processing of step 5010 is restarted. Execute. At this time, the value of the time t9 is set to the same value as the time t2.
The measurer can easily perform re-measurement by resetting the values of the cycle counter 23 and the end cycle number storage means 27.

At step 5010, the cycle counter 2
If the value of 3 is not the same as the value of the end cycle number storage means 27, it is necessary to increase the number of transactions to be transmitted (increase the number of measurement clients 3) to perform additional measurement.

In this case, first, the client No. of the self-measurement client 3 is determined. Is determined to be “1” (step 5012), and the client No. Is “1”, “1” is added to the value of the cycle counter 23 (step 5013), the number of transactions is increased, and the measurement preparation control unit 37 is restarted (step 501).
4), the post-measurement process control unit 39 ends the process.

Next, an example of a case where the cycle counter is set to “1” and the end cycle storage means is set to “3” will be described as an example of how the operations of the measuring clients 3 participating in the measurement of the server performance characteristics are synchronized. This will be described with reference to FIG. 7 while referring to FIGS.

FIG. 7 is a timing chart showing the operation of the server performance measurement system of the present invention. Incidentally, T ₁ through T ₇ is the signal name of the (A) ~ (G) in FIG. 7, the transaction communication channel 5 shown in FIG. 1, respectively, the transaction definition file transfer channels 6, the transaction result file transfer channel 7 and, The names given to the respective transmission paths of the synchronization information transfer channel 8 are shown.

As shown in FIGS. 7A and 7B, the value of the cycle counter 23 is set to "1", and the value of the copy counter 24 is set to "0" and initialized.

First, the client No. In the measurement client 3 of No. 1, the step 2005 shown in FIG. 3 is executed by the measurement preparation control unit 37, and as shown in FIG. The transaction definition information is transferred to one measurement client 3.

After the transaction definition information is transferred, “1” is added to the value of the copy counter 24 by the measurement preparation control unit 37 (step 2006 shown in FIG. 3).
As shown in FIG. 7B, the value of the copy counter 24 switches to “1”. At this timing, the value of the copy counter 24 becomes equal to the value of the cycle counter 23 (the determination result in step 2007 is YES). Measurement synchronization control unit 38 in one measurement client 3
Is started.

Next, the measurement synchronization control unit 38 controls the operation shown in FIG.
As shown in (C), the start time storage means 25 stores t _a + t4
Is set (step 300 shown in FIG. 4).
2).

Then, as shown in FIG. 7D, the value of the in-measurement counter 26 becomes "1" (step 3 shown in FIG. 4).
004 to step 3005), the client No. Transaction start control unit 32 in one measurement client 3
Is started (step 3006 shown in FIG. 4), and FIG.
(G), the client No. on the transaction communication channel 5. A transaction from one measurement client 3 is transmitted.

When the processing of the transaction in the transaction definition file 33 is completed, as shown in FIG. The transmission of the transaction from the first measurement client 3 ends, and the post-measurement processing control unit 39 is activated (step 4006 shown in FIG. 5).

Then, by executing step 5001, the value of the in-measurement counter 26 returns to “0” as shown in FIG. 7D by the post-measurement processing control unit 39 (step 5001 shown in FIG. 6). ), The value of the copy counter 24 and the client No. Are equal to each other (the determination result of step 5004 shown in FIG. 6 is YES), and as shown in FIG. 1 measurement client 3
Then, the measurement data stored in the transaction result file 34 is transferred to the measurement data server 2 by the file transfer means 35 (Step 5006 shown in FIG. 6).

After the transfer of the measurement data is completed, the value of the copy counter 24 returns to “0” as shown in FIG. 7B (FIG. 6).
Step 5007). Then, client N
o. As shown in FIG. 7A, the value of the cycle counter 23 is updated to “2” in the first measurement client 3 (steps 5012 and 5013 shown in FIG. 6).

Up to this point, the client No. The measurement client 3 other than 1 is used in step 200 shown in FIG.
Step 1 and Step 2002 are repeated, and a standby state is established.

Thereafter, the client No. 1 and client No. A similar process is executed by the two measurement clients 3.

As described above, the client No. When the measurement using only 1 is completed, the value of the cycle counter 23 becomes “2”, and as shown in FIGS. 7 (E) and (B),
The value of the copy counter 24 is “0” according to the transfer state of the file of the transaction definition file 33,
“1” and “2”, and as shown in FIG. At the time t _b + t4 of the start time storage means 25 set by the measurement client 3 of client No. 1, the client No. 1 and client No. The two measurement clients 3 simultaneously transmit transactions to the transaction communication channel 5 as shown in FIG.

During this period, as shown in FIG. 7D, the value of the measuring counter 26 indicates “2”, and this value is decremented each time a transaction of each measuring client 3 is transmitted. When the transaction transmission of the two measurement clients 3 is completed, the value of the measuring counter 26 becomes “0”.

At this timing, as shown in FIG. 7F, transfer of the transaction result file 34 is started.

According to the file transfer status of the transaction result file 34, as shown in FIG.
The value of the copy counter 24 changes to “2”, “1”, “0” and returns to “0”. At the same time, the value of the cycle counter 23 is added to “3” as shown in FIG. In the next measurement, the client No. 3 measurement clients 3
Participate in measuring server performance characteristics. In this way,
The number of measurement clients 3 increases to three, and the same processing is continued.

As described above, the transaction activation control unit 32 of each measuring client 3
Since the transaction is transmitted and the response time is calculated, the server performance characteristics can be accurately measured without being limited by the processing performance of the measuring client 3.

Further, the measurement start time of all the measurement clients 3 participating in the measurement is synchronized by the measurement synchronization control unit 38 of each measurement client 3. At this time,
Since each measurement client 3 only needs to calculate the response time for one transaction, a client computer used in a normal operation can be used as the measurement client 3, so that it can be easily used without using special hardware. Accurate server performance characteristics can be measured.

Before starting the measurement, the measurement data server 2
, The necessary transaction definition information is transferred to the transaction definition file 33, so that there is no need to distribute the transaction. Similarly, after the post-measurement processing control unit 39 detects the transaction measurement end timing, the transaction result file 34
Is transferred to the measurement data server 2, so that there is no need to collect the transaction result file. Therefore, server performance characteristics can be obtained by simple processing.

In addition, since the post-measurement processing control unit 39 controls the number of measurement clients participating in the measurement of the server performance characteristics, the server performance characteristics indicating the transaction response time with respect to the number of transactions processed simultaneously are automatically determined. Can be measured.

Further, as a secondary effect, even if the performance parameter on the measured server 1 is changed, re-measurement is automatically performed only by resetting the values of the cycle counter 23 and the end cycle number storage means 27. Server 1 to be measured
Performance tuning work can be performed easily.

[0125]

Since the present invention is configured as described above, the following effects can be obtained.

According to the first aspect, accurate server performance characteristics can be measured without being limited by the processing performance of the measurement client.

According to the second aspect, prior to the measurement of the server performance characteristics, the necessary transaction definition information is transferred to the transaction definition file, so that there is no need to distribute the transaction. Similarly, after the transaction measurement end timing is detected, the response time data stored in the transaction result file is transferred to the measurement data server.
There is no need to collect the contents of the transaction result file. Therefore, server performance characteristics can be obtained by simple processing.

According to the third aspect of the present invention, the post-measurement processing control unit controls the number of measurement clients participating in the measurement of the server performance characteristics, and indicates the response time of the transaction to the number of transactions to be processed simultaneously. Automatically measure server performance characteristics.

Further, as a secondary effect, even if the performance parameter on the measured server is changed, the re-measurement can be automatically performed only by resetting the values of the cycle counter and the number of end cycle number storage means. The performance tuning work of the measured server can be easily performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a server performance measurement system according to the present invention.

FIG. 2 is a graph showing an example of a measurement result of the server performance measurement method shown in FIG.

FIG. 3 is a flowchart showing an operation procedure of a measurement preparation control unit of the server performance measurement method shown in FIG.

FIG. 4 is a flowchart illustrating an operation procedure of a measurement synchronization control unit of the server performance measurement method illustrated in FIG. 1;

FIG. 5 is a flowchart illustrating an operation procedure of a transaction start control unit of the server performance measurement method illustrated in FIG. 1;

FIG. 6 is a flowchart illustrating an operation procedure of a post-measurement-end processing control unit of the server performance measurement method illustrated in FIG. 1;

FIG. 7 is a timing chart showing the operation of the server performance measurement method of the present invention.

FIG. 8 is a block diagram showing a configuration of a performance evaluation method of a computer system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Server to be measured 2 Measurement data server 3 Measurement client 4 Server performance characteristic 5 Transaction communication channel 6 Transaction definition file transfer channel 7 Transaction result file transfer channel 8 Synchronization information transfer channel 10 Transaction processing program 11 Database 21 Transaction definition file group 22 Transaction result File group 23 cycle counter 24 copy counter 25 start time storage means 26 measuring counter 27 end cycle number storage means 28 result totaling means 31 transaction communication means 32 transaction start control unit 33 transaction definition file 34 transaction result file 35 file transfer means 36 data Sharing means 37 Measurement preparation control unit 38 Measurement Period control unit 39 measuring the post-processing control unit

Claims (3)

(57) [Claims] 1. A server performance measuring method for measuring a server performance characteristic of a server that processes a transaction transmitted from at least one client, the server performance characteristic indicating a relationship between a number of the transactions to be processed simultaneously and a response time required for processing the transaction. A transaction definition file in which definition information for creating the transaction is stored; a transaction result file in which the response time data is stored; and one of the definition information stored in the transaction definition file. Creates the transaction and transmits it to the server, stores the transmission time, receives response data to the transaction from the server, and calculates the response time from the difference between the reception time and the transmission time And before A transaction activation control unit that stores the calculation result of the response time as the response time data in the transaction result file; and, when the server performance characteristic is measured, a measurement state used for control for measuring the server performance characteristic. By referring to or rewriting the plurality of status values shown, respectively, to control the number of transactions to be transmitted sequentially and to control the plurality of transactions to be transmitted to the server synchronously. And a measurement synchronization control unit. 2. The server performance measurement method according to claim 1, wherein: a transaction definition file group that holds the definition information required for each of the plurality of measurement clients; and the response time measured by the plurality of measurement clients. A measurement data server comprising: a transaction result file group for storing the data of each of the above; and a result totaling unit for outputting the server performance characteristics from the response time data stored in the transaction result file group. Prior to the measurement of the server performance characteristic, a plurality of the measurement clients read out the predetermined definition information from the transaction definition file group, and a measurement preparation control unit for transferring the definition information to the transaction definition file; After the measurement is completed, the transaction And a post-measurement processing control unit for transferring the response time data stored in the transaction result file to the transaction result file group. 3. The server performance measurement method according to claim 2, wherein the measurement data server includes: a cycle counter that is sequentially increased according to the number of the measurement clients transmitting the transaction when the server performance is measured; An end cycle number storage unit that holds a maximum value of the number of the measurement clients that transmit the transaction necessary for the server performance measurement, wherein the measurement preparation control unit uniquely identifies the own measurement client. When the assigned client number is larger than the value of the cycle counter, the client enters a standby state and performs no processing. The post-measurement processing control unit stores the value of the cycle counter in the end cycle storage unit. Restarting the measurement preparation control unit when the measured value is less than the maximum value. Performance measurement system.