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Load Test Perspective

When a load test is executed and the results are published, the details of load test results at the page, transaction, and counter levels are loaded into the data warehouse and appears in the Result perspective. By using these details, you can answer questions such as:

  • Which transactions and pages were executed in the load test, and what was their average response time?

  • What counter values, such as memory usage or network throughput were collected, and what were the values?

  • Are the results of a particular load test better or worse than results from a comparison test?

NoteNote:

In order to use perspectives with the Team System cube, you must use Microsoft SQL Server 2005 Enterprise Edition or SQL Server 2005 Enterprise (64) Edition on the data tier. SQL Server 2005 Standard Edition that ships as part of Team Foundation Server, does not support the use of perspectives. When using SQL Server 2005 Standard Edition, the cube elements from all perspectives reside in the Team System data cube.

The following table describes the measures that are included in the Load Test perspective. The information that is contained in the measures and dimensions for this perspective are driven by the structure of the load tests that generated the results that have been published to the data warehouse. For more information about the various counter values, see Test Results Reported.

Measure

Measure Group

Description

Value

Load Test Counter

Values collected by the counters during the execution of the load test. These values can be analyzed using the attributes in the Counter ID dimension. Depending on the type of counter that is taking the measurement, the value in this measure has different meanings, for example, the amount of available memory, the number of requests per second, and so on.

Average Duration

Load Test Details

The Average duration for the tests executed during the load test.

Failed Tests

Load Test Details

The number of tests that failed during the execution of the load test.

Total Tests

Load Test Details

The total number of tests that were executed as a part of the load test.

Page Count

Load Test Results

The number of Web page reads that occurred in the load test.

Response Time

Load Test Results

The average response time for the pages read by the load test.

Actual Duration

Load Test Summary

The actual duration for which the load test ran.

Elapsed Time

Load Test Transaction

The average elapsed time for the transactions that occurred in the load test.

Load Test Transaction Response Time

Load Test Transaction

The average response time for the transactions that occurred in the load test.

Transactions

Load Test Transaction

The number of transactions executed during a load test. This can be summarized by the transaction dimension.

The following table describes the attributes that are included in the Load Test perspective. You can aggregate the measures along each of these attributes.

Attribute

Dimension

Description

Build

Build

Number or name used to uniquely identify the build.

Build Start Time

Build

Date and time the build began.

Build Type

Build

Name of the build type. Set in the New Team Build Type Creation Wizard. For more information, see How to: Create a Build Definition.

Selected from the Team Builds node in Team Explorer. For more information, see How to: Queue or Start a Build Definition.

Counter

Counter ID

Identifies the specific counter within the counter object to which the Value measure in the Load Test Counter measure group is associated. For example, for the Request counter object, the values contain elements identified by the specific counter such as Average Response Time, Cached Requests, Failed Requests, and so on.

Counter Instance

Counter ID

Identifies the counter instance associated with the Value measure of the Load Test Counter measure group. For example, a counter instance may indicate a specific network card associated with the measurement of Bytes Received per second, Counter within the Network Interface counter object.

Counter Object

Counter ID

The Load Test Counter object used in measuring activity during the load test. This includes counters such as Memory, Network Interface, or Requests. These counters relate to the Value measure in the Load Test Counter measure group described above. Finer granularity for interpreting the meaning of this attribute is contained in the Counter attribute of the Counter ID dimension.

Counter Result

Counter ID

Boolean value indicating that the current counter is used to determine the overall result.

HigherIsBetter

Counter ID

A flag indicating whether the value measured by this counter instance is better when the value is higher. For example, it is better to have higher throughput for the Bytes Received per Second counter, but it is not better to have higher memory consumption for the Average Test Time measurement. This enables reports to be created that indicate improvements from one run of a load test to another.

Load Test Counter Dimension

Counter ID

Used internally.

Load Test Scenario

Load Test Scenario

The scenario used for measurements found in the Load Test Transaction and Load Test Details measure groups.

Load Test Transaction Dimension

Load Test Transaction

Used internally.

Transaction

Load Test Transaction

The name of the transaction associated with measurements in the Load Test Transaction measure group. This enables a list of all transactions, and their corresponding response times and frequencies to be generated for a particular load test result, or across many load test results.

Machine

Machine

The computer on which the associated load test counter collected information.

Load Test Page Summary Dimension

Page Summary

Used internally.

Url

Page Summary

The URL of the Web page used when measuring the Page Count and Response Time measures of the Load Test page Summary measure group.

Result

Result

The name of the Test Result of the load test. By default, this is the timestamp of the time at which the load test was run.

Test

Result

The name of the load test.

Test Description

Result

A description of the test when the load test result was run.

Test Type

Result

The type of test associated with the test result. For load tests, this will always be Load Test.

Run

Run

The description of the test run that produced the load test results.

Remote Run

Run

A True/False flag that indicates if the test run that produced the load test results was a remote test run.

Load Test Scenario

Scenario

Used internally.

Team Project

Team Project

The team project referenced when publishing the load test results.

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