The Test Program Performance Analyzer automatically launches after you complete a test program performance measurement and loads the data TSM generates.

If an instance of the Test Program Performance Analyzer is already running when you complete a test program performance measurement, the most recently launched instance of the analyzer handles the data TSM generates in the following ways:

  • If the analyzer is not displaying any data, displays the newly generated data set.
  • If the analyzer is displaying a single data set, prompts you to compare the newly generated data set to the previous data set displayed in the analyzer or to replace the previous data set displayed in the analyzer with the newly generated data set.
  • If the analyzer is already comparing two data sets, prompts you to compare the newly generated data set to the previous base data set displayed in the analyzer or to the previous modified data set displayed in the analyzer.
    • When you click the Compare with Base Data button, TSM replaces the previous modified data set displayed in the analyzer with the newly generated data set.
    • When you click the Compare with Modified Data button, TSM completes the following actions:
      • Discards the previous base data set displayed in the analyzer.
      • Converts the previous modified data set displayed in the analyzer to the current base data set to display in the analyzer.
      • Replaces the previous modified data set displayed in the analyzer with the newly generated data set.

You can also use the Log File Path control and Load button near the upper right corner of the Test Program Performance Analyzer to manually specify and load a log file for a single data set to display in the analyzer. When you select the Compare Data Sets mode, you can use the Base Log File Path and the Modified Log File Path controls and Load buttons to manually specify and load log files for two data sets to display and compare in the analyzer.

Loading large log files can cause performance and memory usage issues. To improve performance and avoid memory usage issues, load a sample of the batches in a log file by enabling the Log Data Sample Rate checkbox and specifying the sample rate. When the Log Data Sample Rate checkbox is enabled, one out of every N batches in a log file will be loaded when you click the Load button, where N is the specified sample rate.

To view the metadata of log files, including notes, click the Log Browser button to open the Log Browser Window.