CN106908258A - The method and device of performance test - Google Patents
The method and device of performance test Download PDFInfo
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- CN106908258A CN106908258A CN201510982401.6A CN201510982401A CN106908258A CN 106908258 A CN106908258 A CN 106908258A CN 201510982401 A CN201510982401 A CN 201510982401A CN 106908258 A CN106908258 A CN 106908258A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
This application discloses the method and apparatus of performance test, the method comprising the steps of：Statistic to performance test parameter carries out parameter Estimation, and obtains estimate；Judge whether the estimate for obtaining meets pre-conditioned, and determined whether to be tested next time according to judged result, it is described pre-conditioned according to the setting of the default fluctuating range of performance test parameter.The application can improve testing efficiency.
Description
Technical field
The application is related to the Performance Testing Technology of equipment, more particularly to the method and apparatus that equipment performance is tested.
Background technology
The current test being mainly for the performance test of equipment to response time, but the survey of response time
Test result is easily fluctuated by operating system itself, testing tool sampling and the reason such as test execution mode
Influence, cause the fluctuation of test data.
In the prior art, in order to avoid the fluctuation of test data, it usually needs carry out substantial amounts of test time
Count to exclude impacted test data, to obtain desired test result.Some test scenes may be needed
The testing time wanted probably needs just obtain desired test result 500 times, therefore testing efficiency is very low.
The content of the invention
The method and apparatus that the application provides equipment performance test, it is possible to increase testing efficiency.
According to the first aspect of the embodiment of the present application, there is provided a kind of method of performance test, the method includes
Step：
Statistic to performance test parameter carries out parameter Estimation, and obtains estimate；
Judge whether the estimate for obtaining meets pre-conditioned, and determined whether to carry out down according to judged result
Once test, it is described pre-conditioned according to the setting of the default fluctuating range of performance test parameter.
According to the second aspect of the embodiment of the present application, there is provided a kind of device of performance test, including：
Computing module, carries out parameter Estimation, and obtain estimate for the statistic to performance test parameter；
Whether judge module, the estimate for judging to obtain meets pre-conditioned；And according to judged result
Determine whether to be tested next time, the pre-conditioned default fluctuating range according to performance test parameter
Setting.
Applicant has found the regularity of distribution of performance test parameter by substantial amounts of experiment, therewith using statistics
Principle carries out parameter Estimation to performance test parameter, by the stopping test of estimate and user's setting
Conditions correlation, can decide whether to need to carry out next round test after test every time, reach user's phase
Test can be stopped after the test request of prestige, that is, the optimal testing time for stopping test being found,
Therefore can both ensure to exclude impacted test data, testing cost can be reduced again, improve test effect
Rate.
Brief description of the drawings
Fig. 1 is the flow chart of the method for performance test in the embodiment of the present application；
Fig. 2 is the flow chart of the application application example；
Fig. 3 a, Fig. 3 b show for the test result of the application application example；
Fig. 4 is the hardware structure figure of the device of the application performance test；
Fig. 5 is the logic diagram of the device of the application performance test.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following
When description is related to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous
Key element.Implementation method described in following exemplary embodiment does not represent the institute consistent with the application
There is implementation method.Conversely, they are only with described in detail in such as appended claims, the application
The example of the consistent apparatus and method of a little aspects.
It is the purpose only merely for description specific embodiment in term used in this application, and is not intended to be limiting
The application." one kind ", " institute of the singulative used in the application and appended claims
State " and " being somebody's turn to do " be also intended to include most forms, unless context clearly shows that other implications.Should also
Work as understanding, term "and/or" used herein refers to and associated lists item comprising one or more
Purpose any or all may combine.
It will be appreciated that though may describe various using term first, second, third, etc. in the application
Information, but these information should not necessarily be limited by these terms.These terms only be used for by same type of information that
This is distinguished.For example, in the case where the application scope is not departed from, the first information can also be referred to as
Two information, similarly, the second information can also be referred to as the first information.Depending on linguistic context, as in this institute
Use word " if " can be construed to " and ... when " or " when ... when " or " response
In it is determined that ".
The application can accomplish to be monitored the accumulation of the performance test results of test data, evade
The influence of screening result test fluctuation；And whether can be reached according to the requirement of the precision of user's setting, monitor in real time
Required precision, allows users to determine the opportunity for terminating test in time.
The equipment of the application bearing test data can be plurality of devices, for example handheld device, mobile unit,
Wearable device, television equipment, computing device or other there is equipment of disposal ability etc..
Fig. 1, S101 please be participate in, the statistic to performance test parameter carries out parameter Estimation, and is estimated
Evaluation；
S102, judges whether the estimate for obtaining meets pre-conditioned, and is determined whether according to judged result
Tested next time, it is pre-conditioned to be set according to the default fluctuating range of performance test parameter.
According to statistical definition, statistic refers to the sample function constructed by each sample.Application
People by substantial amounts of experimental studies have found that, the statistic of performance test parameter can meet certain statistical distribution
Rule, the situation of change of the fluctuation of performance test parameter can be analyzed using this statistical law,
For example, the response time for the test scene tested in test every time, can be separate
Sample one by one, the average of the response time tested each time tends to normal distribution；Again for example, right
In evaluated error, (i.e. test performance parameter is influenceed by enchancement factor during certain measurement, deviates normal condition
The difference of lower test performance parameter), when sample reaches certain amount, normal distribution can be met.Cause
The performance that repeatedly test is obtained can be surveyed performance test parameter as sample as an example for this
The totality for trying parameter constitutes certain function as statistic to carry out parameter Estimation.
As a example by using response time as performance test parameter, performance test parameter can be obtained by following processes：
For the test scene with dynamic visual picture, for example to start certain application performance test,
The performance test of facility switching machine, the performance test of closing of the circuit etc., can capture many of test scene
Pictures, analyze the change procedure of picture to obtain the response time of test scene.
The mode for capturing the picture of test scene can utilize to image first-class shooting instrument with certain frequency
Equipment is taken pictures, and the data that shooting instrument is gathered are preserved into picture, and record the collection per pictures
Time.Filming frequency is higher than the frequency of the change per frame picture, for example, the refreshing frequency of mobile phone if
60fps (frame/second), can be shot with the frame rate of 120fps (frame/second).
The change procedure of preserved picture can be analyzed, to determine response time, for example, it may be determined that
Picture starts the time of change and terminates the time of change, and the time interval that will be calculated is used as the checkout area
The response time that scape is once tested.
As an example, it is also possible to capture the keyword in test script, specific survey is determined by keyword
The response time that examination hall scape is tested next time.For example, work as test script upon execution, can be with print execution
The daily record of script, brought into operation using " LOG " as keyword search test script and terminated operation when
Between, so as to obtain the response time once tested.
Be readily appreciated that, it is cited go out example be intended to more intuitively understand the technical scheme of the application, and
The implementation of cited example is not limited to, in addition to response time can be as performance test parameter, not
Other performance test parameters are excluded, for example, represents occupancy data of each process of cpu performance data etc.
Parameter.
As an example, because the overall average of the performance test parameter of multiple test is accorded with some occasions
Normal distribution is closed, therefore, after the completion of certain can be tested in S101, each test of current accumulation
The average of performance test parameter and is carried out as the statistic of performance test parameter using Estimating Confidence Interval
Parameter Estimation, the confidential interval that Estimating Confidence Interval is obtained as estimate, alternatively, it is also possible to will
The confidential interval of acquisition obtains other values (such as stability bandwidth) as estimate as median.
Confidential interval (Confidence interval) refers to the population parameter constructed by the statistic of sample
Estimation interval.In statistics, the confidential interval of a probability sample be to this sample certain is total
The interval estimation of body parameter.What confidential interval represented be this parameter actual value have certain probability fall survey
Degree around amount result.What confidential interval was given is the credibility of the measured value of measured parameter,
This credibility is confidence level.
In the application, the confidence level of confidential interval can be set by the user, user by set confidence level come
The testing cost for needing to spend is determined, if the precision prescribed of the test scene is higher, then can be
It is higher that confidence level is set, and makes the width of confidential interval larger；If precision is low, confidence level
Value can lower, confidential interval can just reduce scope, can so help user to obtain as needed
Obtain required data.For example, in an example, confidence level can be set into 95%, it is also possible to will
Confidence level is set to 90%.
For example, the statistic for obtaining the performance test parameter of each test of current accumulation can pass through
In the following manner.
If being directed to certain test scene, the response time when testing first time is t1, is tested for the second time
When response time be t2, third time test when response time be t3, the 4th time test when response when
A length of t4；Then after the completion of first time tests, the statistic of the performance test parameter of current accumulation is t1；
After the completion of being tested when second, the statistic of the performance test parameter of current accumulation is the flat of the sum of t1, t2
Average.By that analogy, after the completion of being tested when the 4th time, the statistic of the performance test parameter of current accumulation
It is this four times average values of the summation of the response time of test.
In step S101, during the confidential interval of Counting statistics amount, can be according to the difference of sample size
And the regularity of distribution difference for presenting, using different method of interval estimation.As an example, can be by T
Distribution or standardized normal distribution obtain the confidential interval of statistic.Can be by the testing time of current accumulation
Contrasted with preset times, it is determined whether be distributed by the T of the statistic or standardized normal distribution calculates institute
State the confidential interval of statistic.The statistic that pre-determined number is used to distinguish performance test parameter belongs to small sample
Or large sample.It is noted that be not to be distinguished with sample size size between large sample, small sample,
The conventional empirical value of statistics is may be referred to, pre-determined number is set to 30 times, testing time is less than 30 times
When each performance test parameter belong to small sample；Testing time performance test acquired when being not less than 30 times
Parameter is large sample.User can be adjusted according to the actual conditions of test scene to pre-determined number, this Shen
Do not limit 30 times as the sole criterion for weighing large sample and small sample please.
As an example, in small sample parameter Estimation, the confidence area of statistic can be obtained according to T distributions
Between；It is enough in sample, when can be considered as big-sample data, can be united according to standardized normal distribution
The confidential interval of metering.T is distributed the unique spy for not realizing obtaining confidential interval with standardized normal distribution
Distribution is levied, the attribute of the performance test parameter that specific test scene is obtained can be judged by experimental data
Feature come determine select which kind of distribution characteristics.
In the S102 stages, the confidential interval for calculating needs to judge whether to meet to impose a condition, pre-conditioned
Can be set according to the default fluctuating range of performance test parameter, fluctuating range may be referred to test institute in the past
The empirical value of acquisition.Inhomogeneity can be set according to the different demands of tester as the parameter of fluctuating range
Type, such as, in some occasions, default fluctuating range can be acceptable stability bandwidth；In other occasions,
Default fluctuating range can be the scope of acceptable confidential interval.As needed, can be by one of which
The parameter of default fluctuating range stops imposing a condition for test to set, it is also possible to by the pre- of two or more
If the parameter of fluctuating range is used as imposing a condition.
As an example, if it is desired to reduce testing cost, only carry out a small amount of test, then can be in sample
User is desirably less than into certain stability bandwidth in this test to be set to impose a condition；Or, in large sample test
In, user is wished that confidential interval is set to impose a condition less than certain scope.
Stability bandwidth can be obtained by delt/ sample means.
Wherein, delt=S*t (n-1)/sqrt (n)
N represents testing time in formula, and t (n-1) can be distributed critical table acquisition by inquiring about t, and S is sample
Standard deviation, sqrt (n) represents the square root of n.
The computational methods of confidential interval can refer to prior art.
For example, can be using the stability bandwidth less than 3% as imposing a condition, by taking 95% confidence level as an example, such as
The stability bandwidth that fruit calculates is not in the range of the stability bandwidth of setting, then it is assumed that does not meet and imposes a condition, under continuation
One wheel test, until stability bandwidth is fallen into the range of the stability bandwidth of this setting.If again for example, by confidence area
Between scope less than 20ms as imposing a condition, by taking 95% confidence level as an example, if the confidential interval for calculating
Not in the fiducial interval range of setting, then it is assumed that do not meet and impose a condition, continue next round test, directly
To in the fiducial interval range for falling into this setting for calculating.
Below by taking 7 performance test parameters of the acquisition of test as an example, confidential interval and stability bandwidth are illustrated
Acquisition process：
The performance test parameter of 7 test collections is as shown in table 2 below：
Table 2
According to above test result, due to belonging to small sample, therefore fluctuated come statistical computation using T distributions
Rate, it is assumed that the stability bandwidth that the condition of user's setting is less than 3% stops test.Table 3 can be gone out with statistical computation
Result：
Table 3
| Average | 1167.571 |
| t(n-1) | 2.446912 |
| sqrt(n) | 2.645751 |
| t(n-1)/sqrt(n) | 0.92485 |
| S | 44.05246 |
Average is the average value of the performance parameter of each test currently accumulated in table 3；t(n-1)
The free degree is represented, n represents testing time, and the value of confidential interval can be that t is distributed critical table in confidence level
95%th, corresponding value when the free degree is 6, the stability bandwidth that data according to table 3 obtain 7 tests is
3.4853%, it is seen that current stability bandwidth will carry out the test of the 8th time more than pre-conditioned.
Fig. 2 is an application example of the application, and this application example is that the test scene that dialing is exited is entered
The result of row performance test, performance test parameter is the response time that dialing is exited.
S201, user sets confidence level and stops the default bar of test before test assignment is initiated, first
Part, in this example, 95% is set to by confidence level, stops the pre-conditioned for testing time is less than 30 of test
Stability bandwidth is less than 3% when secondary；Confidential interval is less than 16.5ms when testing time is more than or equal to 30 times.When
The test script that dialing is exited is triggered after execution, and the test script is performed (S202).Using at a high speed
Camera preserves into many pieces of picture (S203) with the frame rate collecting test data of 120fps.
After stopping collection, the picture to being preserved is analyzed, and the analysis on change according to image goes out to work as
Before acquire 7 times test response times (S204), in this example in view of test result referring to property,
Test result only to testing time more than 5 times is analyzed, therefore will test setting be first circulation 7
Secondary execution test script.
After having tested every time, the confidential interval of confidence level 95% is calculated for the statistical value currently accumulated,
When testing time is less than 30 times, critical table is distributed by t and draws confidential interval (S205, S206),
S208, stability bandwidth is calculated according to confidential interval, judges whether stability bandwidth meets predetermined condition, if ripple
Dynamic rate does not simultaneously fall within the stability bandwidth scope of setting, then return to S202 and proceed next round test.
After testing time reaches 30 times if confidential interval still not up to setting waving interval, then from
Start for 30th time to calculate confidential interval (S207) according to standardized normal distribution.Fig. 3 a are that testing time is small
The confidential interval obtained according to T distributions after being tested every time when 30 times and corresponding stability bandwidth；Can see
The stability bandwidth that the testing time gone out within 30 times is obtained is all higher than 3%.Fig. 3 b be testing time be more than or
The confidential interval obtained according to standardized normal distribution during equal to 30 times.As can be seen that when testing time reaches
At 50 times, confidential interval falls into default width of confidence interval, that is, can meet user to precision
It is required that, therefore can now stop test.
Embodiment with the method that aforementioned properties are tested is corresponding, present invention also provides the dress of performance test
The embodiment put.
The embodiment of the device of the application performance test can be applied in test equipment.Device embodiment can
Realized with by software, it is also possible to realized by way of hardware or software and hardware combining.It is implemented in software
As a example by, used as the device on a logical meaning, being will be non-volatile by the processor of test where it
Corresponding computer program instructions run what is formed in reading internal memory in memory.From for hardware view,
As shown in figure 4, a kind of hardware structure diagram of the device place test equipment for the application performance test, removes
Outside processor, internal memory, network interface and nonvolatile memory shown in Fig. 4, embodiment
Test equipment where middle device can also include that other are hard generally according to the actual functional capability of the test equipment
Part, such as high-speed camera are first-class, and this is repeated no more.
Refer to Fig. 5, the device 500 of performance test, including：
Computing module 501, carries out parameter Estimation, and estimated for the statistic to performance test parameter
Evaluation；
Whether judge module 502, the estimate for judging to obtain meets pre-conditioned；And according to judgement
Result determines whether to be tested next time, the pre-conditioned default fluctuation according to performance test parameter
Amplitude set.
As an example, the statistic of performance test parameter can be the performance survey of each test of current accumulation
The average of parameter is tried, the parameter Estimation can be Estimating Confidence Interval, and estimate can be confidential interval.
Computing module 501 can obtain the confidential interval of statistic according to predetermined confidence level.
Computing module 501 can contrast testing time and preset times, it is determined whether by the statistics
The T distributions of amount or standardized normal distribution calculate the confidential interval of the statistic, and pre-determined number is used to distinguish
The performance test parameter belongs to small sample or large sample.
When computing module 501 can work as testing time less than preset times, T points of the statistic is calculated
The confidential interval of cloth；Or
When testing time is not less than preset times, the confidential interval of the standardized normal distribution of Counting statistics amount,
Pre-determined number belongs to small sample or large sample for distinguishing the performance test parameter.
Performance test parameter can include response time of the test scene in once testing.
As an example, memory module (not shown) can also be included, for preserving picture format
The gathered data of the test scene；
Computing module 501 can determine the test scene one according to the Changing Pattern of the picture for being preserved
Response time in secondary test.
Computing module 501 can also search the predetermined keyword of the gathered data of test scene；According to predetermined
Keyword determines response time of the test scene in once testing.
In addition, computing module 501 can be also used for obtaining the performance test ginseng according to the confidential interval
Several stability bandwidths.
The default fluctuating range of performance test parameter can be the default stability bandwidth of performance test parameter, and/
Or the default width of confidence interval of the performance test parameter；Estimate can be confidential interval or stability bandwidth.
The function of unit and the implementation process of effect specifically refer to right in the above method in said apparatus
The implementation process of step is answered, be will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part ginseng
See the part explanation of embodiment of the method.Device embodiment described above be only it is schematical,
It is wherein described as separating component illustrate unit can be or may not be it is physically separate, make
For the part that unit shows can be or may not be physical location, you can with positioned at a place,
Or can also be distributed on multiple NEs.Can select according to the actual needs part therein or
Person whole modules realize the purpose of application scheme.Those of ordinary skill in the art are not paying creativeness
In the case of work, you can to understand and implement.
The preferred embodiment of the application is the foregoing is only, is not used to limit the application, it is all at this
Within the spirit and principle of application, any modification, equivalent substitution and improvements done etc. should be included in
Within the scope of the application protection.
Claims (20)
1. a kind of method of performance test, it is characterised in that the method comprising the steps of：
Statistic to performance test parameter carries out parameter Estimation, and obtains estimate；
Judge whether the estimate for obtaining meets pre-conditioned, and determined whether to carry out down according to judged result
Once test, it is described pre-conditioned according to the setting of the default fluctuating range of performance test parameter.
2. method according to claim 1, it is characterised in that
The statistic of the performance test parameter is the performance test parameter of each test of current accumulation
Average, the parameter Estimation is Estimating Confidence Interval.
3. method according to claim 2, it is characterised in that obtaining estimate includes：
The confidential interval of the statistic is obtained according to predetermined confidence level.
4. method according to claim 3, it is characterised in that methods described also includes：
Testing time and preset times are contrasted, it is determined whether be distributed or standard by the T of the statistic
Normal distribution calculates the confidential interval of the statistic, and the pre-determined number is used to distinguish the performance test
Parameter belongs to small sample or large sample.
5. method according to claim 3, it is characterised in that：Methods described also includes：
When testing time is less than preset times, the confidential interval of the T distributions of the statistic is calculated；Or
When testing time is not less than preset times, the confidence of the standardized normal distribution of the statistic is calculated
Interval, the pre-determined number belongs to small sample or large sample for distinguishing the performance test parameter.
6. method according to claim 1, it is characterised in that the performance test parameter includes
Response time of the test scene in once testing.
7. method according to claim 6, it is characterised in that obtain the mistake of the response time
Journey includes：
The gathered data of the test scene is preserved into picture；
Changing Pattern according to the picture for being preserved determines response of the test scene in once testing
Duration.
8. method according to claim 6, it is characterised in that obtain the mistake of the response time
Journey includes：
Search the predetermined keyword of the gathered data of the test scene；
Response time of the test scene in once testing is determined according to the predetermined keyword.
9. method according to claim 2, it is characterised in that methods described also includes：
The stability bandwidth of the performance test parameter is obtained according to the confidential interval.
10. the method according to claim 1, it is characterised in that the performance test parameter it is pre-
If fluctuating range is the default stability bandwidth of the performance test parameter, and/or the performance test parameter is pre-
If width of confidence interval；The estimate is confidential interval or stability bandwidth.
A kind of 11. devices of performance test, it is characterised in that including：
Computing module, carries out parameter Estimation, and obtain estimate for the statistic to performance test parameter；
Whether judge module, the estimate for judging to obtain meets pre-conditioned；And according to judged result
Determine whether to be tested next time, the pre-conditioned default fluctuating range according to performance test parameter
Setting.
12. devices according to claim 11, it is characterised in that
The statistic of the performance test parameter is the performance test parameter of each test of current accumulation
Average, the parameter Estimation is Estimating Confidence Interval.
13. devices according to claim 12, it is characterised in that obtaining estimate includes：
The confidential interval of the statistic is obtained according to predetermined confidence level.
14. devices according to claim 13, it is characterised in that the computing module will be tested
Number of times is contrasted with preset times, it is determined whether be distributed or standardized normal distribution meter by the T of the statistic
The confidential interval of the statistic is calculated, the pre-determined number belongs to small for distinguishing the performance test parameter
Sample or large sample.
15. devices according to claim 13, it is characterised in that：The computing module is when test
When number of times is less than preset times, the confidential interval of the T distributions of the statistic is calculated；Or
When testing time is not less than preset times, the confidence of the standardized normal distribution of the statistic is calculated
Interval, the pre-determined number belongs to small sample or large sample for distinguishing the performance test parameter.
16. devices according to claim 11, it is characterised in that the performance test parameter bag
Include response time of the test scene in once testing.
17. devices according to claim 16, it is characterised in that also including memory module, use
In the gathered data of the test scene for preserving picture format；
The computing module determines the test scene once according to the Changing Pattern of the picture for being preserved
Response time in test.
18. devices according to claim 16, it is characterised in that the computing module searches institute
State the predetermined keyword of the gathered data of test scene；The checkout area is determined according to the predetermined keyword
Response time of the scape in once testing.
19. devices according to claim 12, it is characterised in that the computing module is additionally operable to
The stability bandwidth of the performance test parameter is obtained according to the confidential interval.
20. devices according to claim 11, it is characterised in that the performance test parameter
Default fluctuating range is the default stability bandwidth of the performance test parameter, and/or the performance test parameter
Default width of confidence interval；The estimate is confidential interval or stability bandwidth.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109473121A (en) * | 2018-12-05 | 2019-03-15 | 苏州思必驰信息科技有限公司 | Speech synthesis quality testing method and device |
| CN109783334A (en) * | 2018-12-14 | 2019-05-21 | 平安普惠企业管理有限公司 | Pressure test report-generating method, device, computer equipment and storage medium |
| CN110765414A (en) * | 2019-09-11 | 2020-02-07 | 深信服科技股份有限公司 | Performance index data evaluation method, device, equipment and storage medium |
| CN110765182A (en) * | 2019-10-29 | 2020-02-07 | 北京达佳互联信息技术有限公司 | Data statistical method and device, electronic equipment and storage medium |
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