Instances Application
The Instances analysis utility provides statistics on the number of instances (or copies) of modules that are running in various applications.
Note: If the Instances application is not referenced in the VAM, you must manually add it. The Instances application's directory is named "Instance", and is stored within the VTS installation directory. If you require assistance in adding the Instances application to the VAM, please refer to the instructions provided in Add an Existing Script Application to the VAM.
An image of the Instances utility is displayed below.
As you can see in the image above, the Instances utility consists of an Instances list that has 3 columns. These columns are resizable; simply drag the divider that appears between each column to resize them. The Instances list displays the following information for each module:
• Instances - The Instances column displays the number of running instances of the module at the time of sampling;
• Module – The Module column displays the name of each module; and
• File - The File column displays the document file that contains the module.
Below the Instances list appears data indicating the total number of modules displayed in the Instances list, and the total number of instances of the listed modules. Next to this data are the Re-sample and Close buttons. Clicking the Re-sample button causes the Instances utility to recount the number of module instances; while the Close button closes the Module Instance Count utility and stops the Instances utility.
The Instance tool can help you find potential problems in your application code. For instance, a high instance count for a particular module might indicate:
• Another module has launched too many copies of this module; or
• Each instance of the module never stops executing.