Load Test Analyzer

• You can use the Load Test Analyzer to conduct load test analysis in three ways:
  • Analyze a load test while you monitor a running load test.
  • Analyze your load test results after the load test run is completed.
  • Analyze the load test results of a previously run load test.
• The amount of performance data that is collected during a load test depends on these factors:
  • Length of the test run
  • Sampling interval
  • Number of computers that are under test
  • Number of counters that are being collected
  • Data collectors that are configured
  • Logging levels
• By default, the test controller saves all performance counter data that is collected to a database when the load test is running. Some additional data, such as error details and timing details, is loaded into the database only after the test is completed.
• The Load Test Analyzer has the following unique functionality that is available to analyze the post-run load test result data after a load test finishes:
  • The full set of performance counter data is loaded from the database. You can add, delete, or modify the appearance of performance counters that you want to analyze by using either the Counters panel or the Legend panel in the Graphs View.
  • Percentile data is available.
  • Min / Max lines are available on graphs.
  • Zooming mode is available on graphs. This view lets you analyze data that is contained in any time range.
  • Summary view lets you conduct a quick analysis of the load test results.
  • Details view lets you analyze the virtual user activity for the load test.
  • Tables view lets you view collected information in a tabular format. This includes data from some types of data collectors.
  • Data and Diagnostics Attachments command on the Load Test Analyzer toolbar lets you open and analyze additional data that you collect from a data collector such as IntelliTrace or system information.
  • View performance report provides a report of ASP.NET profiler performance data on your load test.
  • Exporting graph data to Microsoft Excel lets you export data to a Microsoft Excel spreadsheet or as a .csv file from the Graphs View.

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