Monitoring Application Performance

Application Deployment > Checking the Application Deployment > Monitoring Application Performance

	Monitoring Application Performance

The performance monitoring utility allows you to view and analyze a variety of statistical data associated with system performance while running the application.

To use this utility:

Access the index.html page.

To access this page, see Accessing the Application Deployment Utilities.

Click Performance Monitoring (in the bullet Performance Monitoring for the application).

The Web browser displays the performance monitoring page for the selected application.

This page is divided into three basic areas:

Application details - Displays the name and version of the application.

Performance statistics - Displays statistics related to the application's performance in five columns:

Counter - Names the operation or method in the application for which statistical data is being displayed on that row.

Average (ms) - Displays the average amount of response time for all calls to the designated operation or method, in milliseconds.

Min (ms) - Displays the fastest response time among all calls to the designated operation or method, in milliseconds. A negative one (-1) in this column indicates that no performance data has been captured.

Max (ms) - Displays the slowest response time among all calls to the designated operation or method, in milliseconds. The text, if any, displayed in square brackets [ ] is the name of the operation or method.

Total Samples - Displays the total number of times the designated operation or method was called during the current sampling period.

Command buttons - At the bottom of the page are three command buttons:

Enable/Disable - Toggles between Enable and Disable, according to its current state. When performance monitoring is disabled, this button is labeled Enable, and Disable when enabled.

Before data can be collected for analysis, performance monitoring must be enabled for the application. To turn off performance monitoring for the application, click Disable.

Note:

Enabling performance monitoring causes the system to add statistical data to a file every time the application runs. If performance monitoring is left on all the time, this file can eventually become enormous in size. Therefore, it is recommended to only use performance monitoring when needed for debugging or statistical analysis.

Refresh - Use this button when you have two browser windows open. For example, when using one browser window to view the application in HTML mode and a second window to display the performance statistics. Using this button refreshes the data after running several tests of the application.

Reset - This button clears all statistical data in the performance monitoring data file and resets all values to zero (for times) or null (for method or operation names).

Use this button when you want to flush the results of previous tests and start over.