JP2018159985A - Virtual time distribution system, virtual time distribution apparatus, virtual time distribution method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a virtual time distribution system, a virtual time distribution apparatus, a distribution method of virtual time information and program capable of suppressing the occurence of troubles when a test of an application is performed at double speed without human intervention.SOLUTION: A virtual time distribution system 300 includes: a schedule generation unit 102 that generate a schedule in which a double speed value when an information processing apparatus 200 performs an application 204 at double speed is set to each section; a system time calculation unit 103 that calculates a double speed value application start system time when performing an application program with test data on the basis of the double speed value of the previous section of the start time for each start time of the section; and a virtual time calculation unit 203 that identifies the double speed value application start system time just before the system time at requesting when the application 204 requires the time and calculate a time for returning to the application 204 using the identified time and the set double speed value.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an application virtual time distribution system, a virtual time distribution apparatus, and a virtual time information distribution method for distributing time to an information processing apparatus that executes an application program using test data. The present invention relates to a program for realizing these.

  In software testing, data used in actual work in the past may be input as test data. However, if the time included in the test data is different from the time in the application program to be tested (hereinafter referred to as “application”), the application does not operate normally.

  Therefore, a method for providing a virtual time (virtual time) to the application has been proposed in order to adjust the time in the application to the time of the test data. In this method, the tester inputs a difference (difference value) between the time of the test data and the current time before operating the application. When the application requests a virtual time, the system returns the time obtained by subtracting the difference value from the current time to the application. Thereby, a test can be normally performed using the past test data.

  Here, in order to increase the test efficiency, it is considered that the test data is input faster than the actual input. As an example of speeding up the input of test data, for example, timing control of aircraft takeoff and landing in an air traffic control system can be considered. In this air traffic control system, the processing interval is free when there are few aircraft landings and landings, and the waiting time becomes long when the test is performed.

  However, if only the input of test data is accelerated, a mismatch occurs between the time held by the test data and the time within the application that processes the data, and the test target application does not operate normally. As a solution to this problem, for example, Patent Document 1 discloses a synchronization system that doubles the elapsed speed of virtual time and matches the test data input speed (double speed value) with the elapsed speed of virtual time.

  The synchronization system disclosed in Patent Document 1 obtains the current virtual time as follows. That is, the synchronization system determines a reference OS (Operating System) time (hereinafter referred to as “system time”) and a double speed value, and sets the reference system time (hereinafter “ The time obtained by subtracting the time obtained by subtracting the “reference system time” from the double speed value is defined as the elapsed time. The synchronous system defines the time obtained by subtracting the difference value between the reference time of the virtual time (reference virtual time) and the reference system time from the time obtained by adding the elapsed time to the reference time as the current virtual time. To do.

  By the way, depending on the input test data, it can be considered that application processing takes time. In such a case, if the test data input is speeded up, the application cannot be processed and the test may not be performed normally. For this reason, it is necessary to dynamically change the double speed value in accordance with the processing load executed on each input test data.

  However, if the double speed value is changed during test execution, the virtual time may return to a time before the time before the double speed value change, resulting in inconsistent application processing and normal testing of the application under test. There is a problem that does not work.

  For example, a case as shown in FIG. 11 can be considered. FIG. 11 is a diagram showing a problem when a double speed value is changed during a test execution in a conventional software test. In this case, the double speed value is changed from 2 times to 1 time at the virtual time 16:00, and the virtual time has returned from 16:00 to 14:30.

  As a solution to this problem, a method of setting the reference system time and the reference time of the virtual time (reference virtual time) separately disclosed in Patent Document 1 can be considered. In this method, as shown in FIG. 12, the reference system time and the reference virtual time are updated at the timing of changing the double speed value. FIG. 12 is an explanatory diagram for explaining a conventional technique for solving the problem shown in FIG.

In the example of FIG. 12, the reference system time is set to the current system time, and the reference virtual time is set by a tester. The initial value of the reference virtual time is a time including a difference value. Therefore, with this method, the virtual time is prevented from returning when the double speed value is changed. The virtual time is defined as follows.
Virtual time = (current system time-reference system time) * double speed value + reference virtual time

JP 2010-231531 A

  By the way, as described above, in the synchronization system disclosed in Patent Document 1, in order to solve the above problem, it is necessary for the tester to manually specify the reference virtual time. Therefore, the system disclosed in Patent Document 1 has a new problem that the burden on the user becomes very large. Note that the synchronization system disclosed in Patent Document 1 aims at doubling the speed of a series of stock transactions, and does not consider changing the double speed value appropriately according to the processing content. For this reason, it is necessary to provide virtual time specialized for software testing.

  An example of an object of the present invention is to solve the above-described problems and suppress the occurrence of problems when performing an application test at a double speed without manual intervention, a virtual time distribution system, a virtual time distribution device, a virtual time information It is to provide a distribution method and a program.

In order to achieve the above object, a virtual time distribution system according to one aspect of the present invention includes:
A system for distributing time to an information processing apparatus that executes an application program using test data,
A schedule generation unit that generates a schedule in which a speed value when the information processing apparatus executes the application program at a speed is set for each section along a time series;
For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is determined as the double speed value application start system time. As a system time calculator,
When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is A virtual time calculation unit that calculates a time to be returned to the application program using the set double speed value;
It is characterized by providing.

In order to achieve the above object, a virtual time distribution apparatus according to one aspect of the present invention is an apparatus for distributing time to an information processing apparatus that executes an application program using test data,
A schedule generation unit that generates a schedule in which a speed value when the information processing apparatus executes the application program at a speed is set for each section along a time series;
For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is determined as the double speed value application start system time. As a system time calculator,
It is characterized by having.

In order to achieve the above object, a virtual time distribution method according to one aspect of the present invention includes an information processing apparatus that executes an application program using test data, and a virtual for distributing time to the information processing apparatus. A method using a time distribution device,
(A) generating a schedule in which the information processing device sets the speed value when the application program is executed at the speed of speed for each section along a time series; and
(B) For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is applied to the double speed value. Calculating as the starting system time, and
(C) When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value to calculate a time to be returned to the application program; and
It is characterized by having.

In order to achieve the above object, a first program according to one aspect of the present invention is a program for distributing time to an information processing apparatus that executes an application program using test data by a computer. ,
In the computer,
(A) generating a schedule in which the information processing device sets the speed value when the application program is executed at the speed of speed for each section along a time series; and
(B) For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is applied to the double speed value. Calculating as the starting system time, and
Is executed.

To achieve the above object, a second program according to one aspect of the present invention provides an information processing apparatus that executes an application program using test data.
In the schedule in which the information processing apparatus executes the application program at double speed at a speed set for each section along the time series, the double speed value of the section before the start time is set for each section start time. On the basis of the system time at the time of execution of the application program in the information processing device is calculated as the double speed value application start system time,
In the information processing apparatus,
(A) When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value to calculate the time to return to the application program,
It is made to perform.

  As described above, according to the present invention, it is possible to improve the efficiency of software testing without manual intervention.

FIG. 1 is a diagram illustrating a schematic configuration of a virtual time distribution system and a virtual time distribution apparatus according to an embodiment of the present invention. FIG. 2 is a diagram specifically showing the configuration of the virtual time distribution system and the virtual time distribution apparatus in the embodiment of the present invention. FIG. 3 is a diagram showing an example of load information used in the embodiment of the present invention. FIG. 4 is a flowchart showing the operation of the virtual time distribution apparatus in the virtual time distribution system in the embodiment of the present invention. FIG. 5 is a flowchart showing the operation of the information processing apparatus in the virtual time distribution system in the embodiment of the present invention. FIG. 6 is a diagram showing an example of a schedule generated in the embodiment of the present invention. FIG. 7 is a diagram for explaining the processing of the system time calculation unit in the embodiment of the present invention. FIG. 8 is a diagram showing an example of virtual time setting information generated in the embodiment of the present invention. FIG. 9 is a diagram illustrating the processing of the virtual time calculation unit in the embodiment of the present invention. FIG. 10 is a block diagram illustrating an example of a computer that implements the virtual time distribution apparatus and the information processing apparatus according to the embodiment of the present invention. FIG. 11 is a diagram showing a problem when a double speed value is changed during a test execution in a conventional software test. FIG. 12 is an explanatory diagram for explaining a conventional technique for solving the problem shown in FIG.

(Summary of Invention)
According to the present invention, virtual time when an application program is executed using test data without manually calculating the system time of an information processing apparatus that executes the application program (hereinafter simply referred to as “application”). To deliver. An example of the information processing apparatus is an application server that executes an application.

  Here, the system time when the system of the information processing apparatus is activated when the application program is actually executed is referred to as “reference system time”. The first time in the test data is defined as “reference virtual time”. The virtual time is a time given to the application in accordance with a past time included in the test data, and is a time different from the current time.

  First, in the present invention, a schedule is generated in which a double speed value when the information processing apparatus executes an application program at double speed is set for each section along a time series. The schedule is generated from an execution result when the information processing apparatus executes an application in the past using the same data as the test data. The start time of each section in the schedule is a past time and can be expressed as the above-described virtual time.

  The schedule is generated based on, for example, an average value (for each server) of load information of a CPU (Central Processing Unit) included in the test data at a specific past time. Specifically, in the server with the highest CPU load factor (usage rate), the double speed value is set so that the average of the CPU load factors does not exceed the threshold value.

  Next, in the present invention, when the information processing apparatus actually executes the application using the test data based on the double speed value of the section before the start time for each start time of the section set in the schedule. Is calculated as the double speed value application start system time. Also, the double speed value application start system time is held as double speed value change information together with the schedule.

  For example, the double speed value application start system time corresponding to the first start time in the schedule is obtained by multiplying the time obtained by subtracting the reference virtual time from the first start time determined in the schedule and the reciprocal of the double speed value. Is obtained by adding the value to the reference system time. Note that the time of the start point of the first section in the schedule corresponds to the reference virtual time, and the time of the start point of the second section (end point of the first section) corresponds to the first start time.

  The double speed value application start system time corresponding to the second start time is considered as the reference system time with the double speed value application start system time corresponding to the first start time as the reference virtual time. Thus, it is obtained in the same manner. By such processing, system time (double speed value application start system time) corresponding to all start times in the schedule can be obtained gradually.

  Further, it is assumed that the application requests time (virtual time at the time of test) from the information processing apparatus when the information processing apparatus is executing the application program at double speed using the test data. In this case, the information processing apparatus acquires the current system time, and searches for the double speed value change information using this. As a result, the double speed value application start system time that is before the current system time and that is closest is specified.

  Then, the time obtained by subtracting the specified double speed value application start system time from the current system time is multiplied by the double speed value of the section corresponding to the specified double speed value application start system time. Thereafter, the time obtained by multiplication is added to the specified double speed value application start system time, and the obtained time is set as the virtual time in the test data and returned to the application. Since the returned time reflects the start time of all the sections in the schedule, the virtual time does not return to the previous time even if the double speed value changes.

(Embodiment)
Hereinafter, a virtual time distribution system, a virtual time distribution device, a virtual time distribution method, and a program according to an embodiment of the present invention will be described with reference to FIGS.

[System configuration]
First, the configuration of the virtual time distribution system and the virtual time distribution apparatus in the present embodiment will be described with reference to FIG. FIG. 1 is a diagram illustrating a schematic configuration of a virtual time distribution system and a virtual time distribution apparatus according to an embodiment of the present invention.

  The information distribution system 300 according to the present embodiment shown in FIG. 1 distributes time to an information processing apparatus 200 that executes an application program 204 (hereinafter referred to as a unit “application 204”) using test data. It is a system to do.

  The application 204 is an application that uses virtual time when executed with test data as an input, and requests the information processing apparatus 200 for virtual time at an arbitrary timing.

  As shown in FIG. 1, the information distribution system 300 includes a schedule generation unit 102, a system time calculation unit 103, and a virtual time calculation unit 203. In the present embodiment, among these, the schedule generation unit 102 and the system time calculation unit 103 are provided in the virtual time distribution device 100. The virtual clock calculation unit 203 is provided in the information processing apparatus 200.

  The schedule generation unit 102 generates a schedule in which a double speed value when the information processing apparatus 200 executes the application 204 at double speed is set for each section along a time series.

  Further, the system time calculation unit 103 calculates the system time when the application 204 is executed in the information processing apparatus 200 based on the double speed value of the section before the start time for each start time of the section set in the schedule. Calculate as the double speed value application start system time.

  The virtual time calculation unit 203 uses the double speed value application start system time calculated for each start time and immediately before the request time when the application 204 executed at double speed using the test data requests time. The system time for starting the application of the double speed value is specified. Further, the virtual time calculation unit 203 calculates the time to be returned to the application 204 using the specified double speed value application start system time and the double speed value set in the section.

  As described above, in the present embodiment, since the schedule in which the double speed value is set for each section is automatically set, the test of the application 204 can be executed without manual operation. In addition, since the time returned to the application 204 is all calculated based on the section set in the schedule, even if the double speed value changes during the test, the time during the test is the time before the system time. Never come back. Therefore, according to the present embodiment, it is possible to suppress the occurrence of problems when the application 204 is tested at double speed.

  Next, the configuration of the virtual time distribution system and the virtual time distribution apparatus according to the present embodiment will be described with reference to FIG. 1 and FIG. FIG. 2 is a diagram specifically showing the configuration of the virtual time distribution system and the virtual time distribution apparatus in the embodiment of the present invention.

  As shown in FIG. 2, in this embodiment, the virtual time distribution system 300 includes a load information storage unit 101 in addition to the schedule generation unit 102, the system time calculation unit 103, and the virtual time calculation unit 203 described above. An information distribution unit 104, an information reception unit 201, and an information storage unit 202 are provided.

  In the present embodiment, the load information storage unit 101 and the information distribution unit 104 are provided in the virtual time distribution device 100, and the information reception unit 201 and the information storage unit 202 are information processing devices that execute the application 204. 200.

  Further, hereinafter, a case where there is one information processing apparatus 200 has been described, but in the present embodiment, a plurality of information processing apparatuses 200 may be provided. Furthermore, the information processing apparatus 200 is an application server that executes the application 204, and is connected to the virtual time distribution apparatus 100 via a network. Hereinafter, the information processing apparatus 200 is referred to as “application server 200”.

  In addition, in this embodiment, it is assumed that the system time of the virtual time distribution apparatus 100 and the system time of the application server 200 are synchronized by a network time protocol. Therefore, the time when the virtual time distribution system 300 starts processing, that is, the time when the tester executes the virtual time start command coincides with the system time (reference system time) when the information processing apparatus is activated.

  Furthermore, in the present embodiment, the virtual time distribution device 100 may be built in the application server 200. In this case, the application server 200 includes each unit. Then, each part is demonstrated concretely.

  First, as shown in FIG. 2, in the present embodiment, the virtual time distribution device 100 includes a load information storage unit 101, a schedule generation unit 102, a system time calculation unit 103, and an information distribution unit 104. Yes.

  The load information storage unit 101 stores load information. As shown in FIG. 3, the load information is information for specifying a load for each time when the application server 200 executes the application 204 using the same data as the test data. FIG. 3 is a diagram showing an example of load information used in the embodiment of the present invention.

  In the example of FIG. 3, the date and time when the application 204 was executed is registered in the load information. In the load information, an average value of the CPU load factor for each specific time (1 hour in the example of FIG. 3) is also registered.

  In the present embodiment, the schedule generation unit 102 acquires load information from the load information storage unit 101, and generates a schedule based on the acquired load information.

  In the present embodiment, the system time calculation unit 103 receives the schedule generated by the schedule generation unit 102, and calculates the double speed value application start system time for each start time of the section set in the received schedule.

  Specifically, the system time calculation unit 103 obtains the time from the start time immediately before the start time to the start time for each start time of the section set in the schedule, and at the obtained time, Multiply the reciprocal of the double speed value in the section before the start time. Then, the system time calculation unit 103 adds the time obtained by multiplication to the double speed value application start system time corresponding to the start time immediately before the start time, and sets the time obtained by the addition to the start time. The double speed value application start system time corresponding to the time is used.

  When the start time immediately before the start time is the start point of the schedule, the double speed value application start system time corresponding to the immediately preceding start time is the time when the tester executes the virtual time start command That is, it becomes the above-mentioned reference system time.

  Further, the system time calculation unit 103 outputs the calculated double speed value application start system time and schedule for each start time to the information distribution unit 104 as virtual time setting information. The information distribution unit 104 distributes the virtual time setting information output from the system time calculation unit 103 to the application server 200.

  The application server 200 executes the application 204 using the test data. At this time, when the application requests time (virtual time), the application server 200 returns the virtual time. As illustrated in FIG. 2, in the present embodiment, the information processing apparatus 200 includes an information reception unit 201, an information storage unit 202, and a virtual time calculation unit 203.

  The information reception unit 201 receives the virtual time setting information distributed from the information distribution unit 104 and stores the received virtual time setting information in the information storage unit 202.

  When the application 204 running with test data as input data requests time (virtual time), the virtual time calculation unit 203 first acquires virtual time setting information from the information storage unit 202. Furthermore, the virtual time calculation unit 203 specifies a double speed value start system time that is immediately before the system time at the time of the request from the double speed value start system time included in the virtual time setting information.

  Subsequently, the virtual time calculation unit 203 multiplies the elapsed time from the specified double speed value application start system time to the requested system time by the double speed value set in the section of the specified double speed value application start system time. Then, the virtual time calculation unit 203 adds the time obtained by multiplication to the start time (virtual time) corresponding to the identified double speed value application start system time, and uses the virtual time obtained by the addition as the application 204. Return to

  As described above, when the application 204 that is executing test data as input data requests time (virtual time), the virtual time calculation unit 203 calculates the current virtual time and returns it to the application 204. In the present embodiment, the information storage unit 202 and the virtual time calculation unit 203 are arranged on the application server 200. For this reason, the application server 200 does not need to communicate with the virtual time distribution device 100 each time a virtual time is requested from the application 204, so that the processing load on the application server 200 during testing is reduced.

[System operation]
Next, operations of the virtual time distribution system 300 and the virtual time distribution apparatus 100 according to the embodiment of the present invention will be described with reference to FIGS. In the following description, FIG. 1 is taken into consideration as appropriate. In the present embodiment, the virtual time distribution method is implemented by operating the virtual time distribution system 300. Therefore, the description of the virtual time distribution method in the present embodiment is replaced with the following description of the operation of the virtual time distribution system.

  First, the process performed in the virtual time distribution apparatus 100 is demonstrated using FIG. FIG. 4 is a flowchart showing the operation of the virtual time distribution apparatus in the virtual time distribution system in the embodiment of the present invention. Further, it is assumed that the load information storage unit 110 receives the load information shown in FIG. 3 from the outside and stores it.

  First, a tester who is a user executes a virtual time start command in the virtual time distribution apparatus 100. Thereby, as shown in FIG. 4, the schedule production | generation part 102 acquires load information (refer FIG. 3) from the load information storage part 101, and produces | generates a schedule based on the acquired load information (step A1).

  Next, for each start time of the section set in the schedule, the system time calculation unit 103 calculates the system time when the application 204 is executed in the information processing apparatus 200 based on the double speed value of the section before the start time. The time value application start system time is calculated (step A2). Further, the system time calculation unit 103 outputs the calculated double speed value application start system time and schedule for each start time to the information distribution unit 104 as virtual time setting information.

  The information distribution unit 104 distributes the virtual time setting information output from the system time calculation unit 103 to the application server 200 (step A3).

  Subsequently, processing performed in the application server 200 will be described with reference to FIG. FIG. 5 is a flowchart showing the operation of the information processing apparatus in the virtual time distribution system in the embodiment of the present invention. As a premise, it is assumed that the information receiving unit 201 receives the virtual time setting information distributed from the information distributing unit 104 and stores the received virtual time setting information in the information storage unit 202.

  As illustrated in FIG. 5, the virtual time calculation unit 203 first determines whether or not the application 204 that is executed using test data as input data requests time (virtual time) (step B1).

  As a result of the determination in step B1, when the application 204 does not request time, the virtual time calculation unit 203 enters a standby state. On the other hand, if the result of determination in step B1 is that the application 204 requests time, the virtual time calculation unit 203 acquires the system time from the OS of the application server 200 (step B2). The system time acquired at this time becomes the system time when the application 204 requests.

  Next, the virtual time calculation unit 203 acquires the virtual time setting information from the information storage unit 202, and immediately before the system time at the time of the request from the double speed value start system time included in the virtual time setting information. The start system time for double speed value is specified (step B3).

  Next, the virtual time calculation unit 203 sets the double speed value set in the section of the specified double speed value application start system time as the elapsed time from the double speed value application start system time specified in step B3 to the system time at the time of request. Multiply. Then, the virtual time calculation unit 203 calculates the virtual time by adding the time obtained by multiplication to the start time (virtual time) corresponding to the specified double speed value application start system time (step B4).

  Next, the virtual time calculation unit 203 returns the virtual time calculated in step B4 to the application 204 (step B5). Thereafter, the virtual time calculation unit 203 executes Step B1 again. Steps B1 to B5 are repeatedly executed until the application 204 ends.

[Concrete example]
Subsequently, a specific example of the operation of the virtual time distribution system 300 will be described with reference to FIGS. First, it is assumed that the tester executes a virtual time start command at 10:00 on November 9, 2016. The time when the user executes the virtual time start command becomes the reference system time.

[Step A1]
The schedule generation unit 102 generates the double speed value change schedule shown in FIG. 6 using the first time of load information shown in FIG. 3 (10:00 of 2016/11/8) as a reference virtual time. FIG. 6 is a diagram showing an example of a schedule generated in the embodiment of the present invention.

  Specifically, the schedule generation unit 102 first sets each time included in the load information shown in FIG. 3 as a virtual time, and sets a virtual time (10:00, 11:00) as a delimiter between the CPU load factors. ) To generate the schedule so that the double speed value is changed. Therefore, the virtual time that is the delimiter between the CPU load factors is the start time of the section. The start time is a time at which application of the double speed value is started, and is also referred to as “double speed value start time”.

  For example, in the example of FIG. 3, since the CPU load factor (usage rate) is 40% at 10:00 to 11:00, if the threshold value of the CPU load factor is 80%, the schedule generation unit 102 The double speed value at 10:00 is calculated as double based on the following formula 1. Therefore, as shown in FIG. 6, the schedule generation unit 102 sets the double speed value at the double speed value start time 10:00 to double.

  On the other hand, in the example of FIG. 3, the CPU load factor is 90% from 11:00 to 12:00 and has already exceeded the threshold value. Therefore, the schedule generation unit 102, as shown in FIG. The double speed value at the value start time 11:00 is set to 1 time.

  In the above description, for the sake of simplicity, the case where there is one application server 200 is taken as an example, but in the present embodiment, a plurality of application servers 200 may be provided. In this case, since the CPU load factor is different for each application server, for example, the schedule generation unit 102 sets a double speed value according to the application server 200 having the highest CPU load factor for each time zone.

[Steps A2 to A3]
The system time calculation unit 103 calculates the double speed value application start system time corresponding to each double speed value application start time from the double speed value change information shown in FIG. Specifically, the system time calculation unit 103 calculates a double speed value application start system time for each double speed value application start time using a recurrence formula shown in the following equation 2.

Here, the S _n n-th speed value application start time, the n-th speed value application start system time to T _n corresponding to S _n, the F _n and speed value after the n-th speed value application start time . Also, T ₀ is the reference system time, S ₀ is the reference virtual time, and F ₀ is 1. Note that n> 0.

  As can be seen from Equation 2, the elapsed time in the system time is calculated from the difference between the nth double speed value application start time and the (n−1) th double speed value application start time, and each double speed value application start time is calculated. Is calculated. A calculation process using Equation 2 will be described with reference to FIG. FIG. 7 is a diagram for explaining the processing of the system time calculation unit in the embodiment of the present invention.

  In FIG. 7, the virtual time in the test data represents the time of November 8, 2016, and the system time represents the time of November 9, 2016. Here, since there are two double speed value application start times in the double speed value change information, the system time calculation unit 103 uses the above formula 1 to start double speed value application for each of n = 1 and 2 Calculate the system time.

  First, when n = 1, the calculation using the above equation 1 is as the following equation 3. In the following, each of H and M represents the hour and minute.

  Next, when n = 2, the calculation using the above equation 1 is as the following equation 4.

  The system time calculation unit 103 generates virtual time setting information shown in FIG. 8 based on the above formula 3 and the result of FIG. FIG. 8 is a diagram showing an example of virtual time setting information generated in the embodiment of the present invention. The information distribution unit 104 distributes the virtual time setting information illustrated in FIG. 8 to the application server 200.

[Steps B1 to B5]
The information receiving unit 201 stores the received virtual time setting information (see FIG. 8) in the information storage unit 202. When a time (virtual time) is requested from the application 204, the virtual time calculation unit 203 calculates a virtual time to be returned to the application using the following formula 5 and FIG.

  Specifically, in the present embodiment, the virtual time calculation unit 203 provides an application program interface (API) to the application 204. Therefore, the application 204 requests the virtual time from the virtual time calculation unit 203 by calling the provided API.

Here, S _c is the current virtual time, and T _c is the current system time. Also, let X be a set based on n satisfying Equation 5 below.

  When X = φ is established, the following equation 6 is established. When X = φ is not established, n = max (X), and the following equation 7 is established.

In Equation 7, S _n is up to (n-1) -th pair, because it contains a double speed is the time, not the virtual time to return to the previous time even speed value is changed.

  FIG. 9 is a diagram illustrating the processing of the virtual time calculation unit in the embodiment of the present invention. The example of FIG. 9 illustrates a case where the application 204 requests the virtual time calculation unit 203 for the time when the system time is November 9, 2016, 11:30. At this time, the virtual time calculation unit 203 calculates the virtual time using the above formula 7. The calculation result is as shown in Equation 8 below.

  Therefore, in the example of FIG. 9, the virtual time calculation unit 203 returns 11:30 on November 8, 2016 to the application 204 as the virtual time.

  As described above, according to the present embodiment, it is possible to test an application at a double speed without manually specifying a reference virtual time. Further, even when the double speed value is changed during the test, the virtual time does not return to the previous time, and a consistent time is always provided, so that the occurrence of a problem is avoided. Furthermore, since the double speed value at the time of the test is optimized by the system based on the CPU load information obtained when the application is executed in the past, the test efficiency is also improved.

[Modification]
In this embodiment, the virtual time calculation unit 203 is a library that hooks an interface for time acquisition provided by the OS (such as a system call in a UNIX (registered trademark) system) in addition to an aspect in which an API is provided to the application 204. It is also possible to provide an embodiment. In this aspect, processing performed by the virtual time calculation unit 203 is embedded in the library. Moreover, when this aspect is used, versatility is enhanced because the virtual time distribution system according to the present embodiment can be applied to an existing application.

  Further, in the virtual time distribution system according to the present embodiment, the load information storage unit 101 is constructed by a nonvolatile storage device, so that the same setting information is transmitted even when the virtual time distribution device 100 is restarted. 200 can be distributed. In addition, by constructing the information storage unit 202 with a nonvolatile storage device, the virtual time distribution system according to the present embodiment can be operated with the same settings even when the application server 200 is restarted.

[program]
The first program in the present embodiment may be a program that causes a computer to execute steps A1 to A3 shown in FIG. By installing and executing this program on a computer, the virtual time distribution apparatus in the present embodiment can be realized. In this case, a central processing unit (CPU) of the computer functions as the schedule generation unit 102, the system time calculation unit 103, and the information distribution unit 104, and performs processing. In the present embodiment, the load information storage unit 101 can be realized by a storage device such as a hard disk provided in the computer.

In addition, the first program in the present embodiment may be executed by a computer system constructed by a plurality of computers. In this case, for example, each computer may function as any one of the schedule generation unit 102, the system time calculation unit 103, and the information distribution unit 104, respectively. The load information storage unit 101 may be constructed on a computer different from the computer that executes the first program in the present embodiment.
The second program in the present embodiment may be a program that causes a computer to execute steps B1 to B5 shown in FIG. By installing and executing this program on a computer, the virtual time calculation unit 203 in the present embodiment can be realized. In this case, a central processing unit (CPU) of the computer functions as the virtual time calculation unit 203 and performs processing. An example of the computer here is the application server 200.

  In addition, the virtual time distribution apparatus 100 according to the present embodiment can be built in the application server 200 as described above. In this case, both the first program and the second program are installed in the application server 200. Will be executed.

[Physical configuration]
Here, a computer that executes the first and second programs in the present embodiment will be described with reference to FIG. FIG. 10 is a block diagram illustrating an example of a computer that implements the virtual time distribution apparatus and the information processing apparatus according to the embodiment of the present invention.

  As shown in FIG. 10, the computer 110 includes a CPU 111, a main memory 112, a storage device 113, an input interface 114, a display controller 115, a data reader / writer 116, and a communication interface 117. These units are connected to each other via a bus 121 so that data communication is possible.

  The CPU 111 performs various calculations by developing the program (code) in the present embodiment stored in the storage device 113 in the main memory 112 and executing them in a predetermined order. The main memory 112 is typically a volatile storage device such as a DRAM (Dynamic Random Access Memory). Further, the program in the present embodiment is provided in a state of being stored in a computer-readable recording medium 120. Note that the program in the present embodiment may be distributed on the Internet connected via the communication interface 117.

  Specific examples of the storage device 113 include a hard disk drive and a semiconductor storage device such as a flash memory. The input interface 114 mediates data transmission between the CPU 111 and an input device 118 such as a keyboard and a mouse. The display controller 115 is connected to the display device 119 and controls display on the display device 119.

  The data reader / writer 116 mediates data transmission between the CPU 111 and the recording medium 120, and reads a program from the recording medium 120 and writes a processing result in the computer 110 to the recording medium 120. The communication interface 117 mediates data transmission between the CPU 111 and another computer.

  Specific examples of the recording medium 120 include general-purpose semiconductor storage devices such as CF (Compact Flash (registered trademark)) and SD (Secure Digital), magnetic recording media such as a flexible disk, or CD- An optical recording medium such as ROM (Compact Disk Read Only Memory) can be used.

  Note that the virtual time distribution apparatus 100 in the present embodiment can be realized not by using a computer in which a program is installed but also by using hardware corresponding to each unit. Furthermore, part of the virtual time distribution apparatus 100 may be realized by a program, and the remaining part may be realized by hardware.

  Part or all of the above-described embodiment can be expressed by (Appendix 1) to (Appendix 20) described below, but is not limited to the following description.

(Appendix 1)
A system for distributing time to an information processing apparatus that executes an application program using test data,
A schedule generation unit that generates a schedule in which a speed value when the information processing apparatus executes the application program at a speed is set for each section along a time series;
For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is determined as the double speed value application start system time. As a system time calculator,
When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is A virtual time calculation unit that calculates a time to be returned to the application program using the set double speed value;
A virtual time distribution system comprising:

(Appendix 2)
The schedule generation unit specifies load for each time when the information processing apparatus executes the application program using the same data as the test data, acquires load information, and based on the load information, Generating the schedule;
The virtual time distribution system according to attachment 1.

(Appendix 3)
The system time calculator is
For each start time of the section set in the schedule,
Obtain the time from the start time immediately before the start time to the start time, multiply the obtained time by the inverse of the double speed value of the section before the start time, and
The system speed corresponding to the start time immediately before the start time is added with the time obtained by multiplication, and the time obtained by addition is added to the system time for starting double speed value application corresponding to the start time. And
The virtual time distribution system according to appendix 1 or 2.

(Appendix 4)
The virtual time calculation unit, when the application program that is being executed using test data requests time,
Multiply the elapsed time from the specified double speed value application start system time to the requested system time by the double speed value set in the specified double speed value application start system time section; and
Adding the time obtained by multiplication to the start time corresponding to the specified double speed value application start system time, and returning the time obtained by the addition to the application program;
The virtual time distribution system according to any one of appendices 1 to 3.

(Appendix 5)
An apparatus for distributing time to an information processing apparatus that executes an application program using test data,
A schedule generation unit that generates a schedule in which a speed value when the information processing apparatus executes the application program at a speed is set for each section along a time series;
For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is determined as the double speed value application start system time. As a system time calculator,
A virtual time distribution apparatus comprising:

(Appendix 6)
The schedule generation unit specifies load for each time when the information processing apparatus executes the application program using the same data as the test data, acquires load information, and based on the load information, Generating the schedule;
The virtual time distribution device according to attachment 5.

(Appendix 7)
The system time calculator is
For each start time of the section set in the schedule,
Obtain the time from the start time immediately before the start time to the start time, multiply the obtained time by the inverse of the double speed value of the section before the start time, and
The system speed corresponding to the start time immediately before the start time is added with the time obtained by multiplication, and the time obtained by addition is added to the system time for starting double speed value application corresponding to the start time. And
The virtual time distribution device according to appendix 5 or 6.

(Appendix 8)
When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value, further comprising a virtual time calculation unit for calculating a time to be returned to the application program;
The virtual time distribution apparatus according to any one of appendices 5 to 7.

(Appendix 9)
The virtual time calculation unit, when the application program that is being executed using test data requests time,
Multiply the elapsed time from the specified double speed value application start system time to the requested system time by the double speed value set in the specified double speed value application start system time section; and
Adding the time obtained by multiplication to the start time corresponding to the specified double speed value application start system time, and returning the time obtained by the addition to the application program;
The virtual time distribution device according to attachment 8.

(Appendix 10)
A method using an information processing device that executes an application program using test data, and a virtual time distribution device for distributing time to the information processing device,
(A) generating a schedule in which the information processing device sets the speed value when the application program is executed at the speed of speed for each section along a time series; and
(B) For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is applied to the double speed value. Calculating as the starting system time, and
(C) When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value to calculate a time to be returned to the application program; and
A virtual time distribution method comprising:

(Appendix 11)
In the step (a), the information processing device specifies load for each time when the application program is executed using the same data as the test data, acquires load information, and based on the load information To generate the schedule,
The virtual time distribution method according to attachment 10.

(Appendix 12)
In the step (b),
For each start time of the section set in the schedule,
Obtain the time from the start time immediately before the start time to the start time, multiply the obtained time by the inverse of the double speed value of the section before the start time, and
The system speed corresponding to the start time immediately before the start time is added with the time obtained by multiplication, and the time obtained by addition is added to the system time for starting double speed value application corresponding to the start time. And
The virtual time distribution method according to attachment 10 or 11.

(Appendix 13)
In the step (c), when the application program being executed using the test data requests time,
Multiply the elapsed time from the specified double speed value application start system time to the requested system time by the double speed value set in the specified double speed value application start system time section; and
Adding the time obtained by multiplication to the start time corresponding to the specified double speed value application start system time, and returning the time obtained by the addition to the application program;
The virtual time distribution method according to any one of appendices 10 to 12.

(Appendix 14)
A program for distributing time to an information processing apparatus that executes an application program using test data by a computer,
In the computer,
(A) generating a schedule in which the information processing device sets the speed value when the application program is executed at the speed of speed for each section along a time series; and
(B) For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is applied to the double speed value. Calculating as the starting system time, and
A program that executes

(Appendix 15)
In the step (a), the information processing device specifies load for each time when the application program is executed using the same data as the test data, acquires load information, and based on the load information To generate the schedule,
The program according to appendix 14.

(Appendix 16)
In the step (b),
For each start time of the section set in the schedule,
Obtain the time from the start time immediately before the start time to the start time, multiply the obtained time by the inverse of the double speed value of the section before the start time, and
The system speed corresponding to the start time immediately before the start time is added with the time obtained by multiplication, and the time obtained by addition is added to the system time for starting double speed value application corresponding to the start time. And
The program according to appendix 14 or 15.

(Appendix 17)
In the computer,
(C) When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value to calculate the time to be returned to the application program, the step is further executed,
The program according to any one of appendices 14 to 16.

(Appendix 18)
In the step (c),
When the application program being executed using the test data requests time,
Multiply the elapsed time from the specified double speed value application start system time to the requested system time by the double speed value set in the specified double speed value application start system time section; and
Adding the time obtained by multiplication to the start time corresponding to the specified double speed value application start system time, and returning the time obtained by the addition to the application program;
The program according to appendix 17.

(Appendix 19)
For information processing devices that execute application programs using test data,
In the schedule in which the information processing apparatus executes the application program at double speed at a speed set for each section along the time series, the double speed value of the section before the start time is set for each section start time. On the basis of the system time at the time of execution of the application program in the information processing device is calculated as the double speed value application start system time,
In the information processing apparatus,
(A) When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value to calculate the time to return to the application program,
The program to be executed.

(Appendix 20)
In the step (a), when the application program being executed using test data requests time,
Multiply the elapsed time from the specified double speed value application start system time to the requested system time by the double speed value set in the specified double speed value application start system time section; and
Adding the time obtained by multiplication to the start time corresponding to the specified double speed value application start system time, and returning the time obtained by the addition to the application program;
The program according to appendix 19.

  As described above, according to the present invention, it is possible to improve the efficiency of software testing without manual intervention. INDUSTRIAL APPLICABILITY The present invention is useful for a system that includes processing dependent on time information, such as an air traffic control system, and tends to take a long time for software testing. Specifically, as such a system, there is a system that controls the takeoff and landing times of individual aircraft based on the aircraft takeoff and landing schedule at the airport and the position information of the aircraft in flight to avoid congestion at the time of landing. Can be mentioned.

DESCRIPTION OF SYMBOLS 101 Load information storage part 102 Schedule production | generation part 103 System time calculation part 104 Information distribution part 110 Computer 111 CPU
112 Main memory 113 Storage device 114 Input interface 115 Display controller 116 Data reader / writer 117 Communication interface 118 Input device 119 Display device 120 Recording medium 121 Bus 200 Information processing device (application server)
DESCRIPTION OF SYMBOLS 201 Information receiving part 202 Information storage part 203 Virtual time calculation part 204 Application program 300 Virtual time delivery system

Claims (8)

A system for distributing time to an information processing apparatus that executes an application program using test data,
A schedule generation unit that generates a schedule in which a speed value when the information processing apparatus executes the application program at a speed is set for each section along a time series;
For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is determined as the double speed value application start system time. As a system time calculator,
When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is A virtual time calculation unit that calculates a time to be returned to the application program using the set double speed value;
A virtual time distribution system comprising: The schedule generation unit specifies load for each time when the information processing apparatus executes the application program using the same data as the test data, acquires load information, and based on the load information, Generating the schedule;
The virtual time distribution system according to claim 1. The system time calculator is
For each start time of the section set in the schedule,
Obtain the time from the start time immediately before the start time to the start time, multiply the obtained time by the inverse of the double speed value of the section before the start time, and
The system speed corresponding to the start time immediately before the start time is added with the time obtained by multiplication, and the time obtained by addition is added to the system time for starting double speed value application corresponding to the start time. And
The virtual time distribution system according to claim 1 or 2. The virtual time calculation unit, when the application program that is being executed using test data requests time,
Multiply the elapsed time from the specified double speed value application start system time to the requested system time by the double speed value set in the specified double speed value application start system time section; and
Adding the time obtained by multiplication to the start time corresponding to the specified double speed value application start system time, and returning the time obtained by the addition to the application program;
The virtual time distribution system according to claim 1. An apparatus for distributing time to an information processing apparatus that executes an application program using test data,
A schedule generation unit that generates a schedule in which a speed value when the information processing apparatus executes the application program at a speed is set for each section along a time series;
For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is determined as the double speed value application start system time. As a system time calculator,
A virtual time distribution apparatus comprising: A method using an information processing device that executes an application program using test data, and a virtual time distribution device for distributing time to the information processing device,
(A) generating a schedule in which the information processing device sets the speed value when the application program is executed at the speed of speed for each section along a time series; and
(B) For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is applied to the double speed value. Calculating as the starting system time, and
(C) When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value to calculate a time to be returned to the application program; and
A virtual time distribution method comprising: A program for distributing time to an information processing apparatus that executes an application program using test data by a computer,
In the computer,
(A) generating a schedule in which the information processing device sets the speed value when the application program is executed at the speed of speed for each section along a time series; and
(B) For each start time of the section set in the schedule, based on the double speed value of the section before the start time, the system time at the time of execution of the application program in the information processing apparatus is applied to the double speed value. Calculating as the starting system time, and
A program that executes For information processing devices that execute application programs using test data,
In the schedule in which the information processing apparatus executes the application program at double speed at a speed set for each section along the time series, the double speed value of the section before the start time is set for each section start time. On the basis of the system time at the time of execution of the application program in the information processing device is calculated as the double speed value application start system time,
In the information processing apparatus,
(A) When the application program being executed using the test data requests time,
From the double speed value application start system time calculated for each start time, the double speed value application start system time immediately before the system time at the time of request is specified, and the specified double speed value application start system time is Using the set double speed value to calculate the time to return to the application program,
The program to be executed.

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