Performance Monitoring 

Use

The performance monitoring functions give you an overview of the data that is specific to the current system and application in the running portal on a Java Virtual Machine. With this data, some of which are averages, you can identify the areas that are causing performance problems. The performance monitoring functions handle all instrumented portal server requests.

A request normally consists of a number of components and subcomponents that can also be nested. The threads can only be evaluated if all the components and subcomponents of a request run in the same thread.

In a cluster environment, the portal applications run in different cluster nodes. The portal monitoring functions give you an overview of the system status for each portal server. At the moment it is not possible to get a complete overview of the requests of all the portal servers at the same time on the user interface of the portal.

Integration

The performance monitoring functions are implemented in the portal as components. Alternatively you can display the data, some of which is summarized in the cluster, in the Visual Administrator of the J2EE Engine or in the CCMS. For more information see JARM Runtime Views.

Features

You can start the following performance monitoring functions with System Administration ® Monitoring ® Portal:

·        Request Summary
Contains the most important performance data for a portal server accumulated in different categories (for example, total amount of outbound data or total time for all requests).

·        Request Overview
Contains an overview of the requests which have the greatest effect on the performance, including detailed information about the components involved.

·        Component Overview
Contains an overview of the individual components (independent of the corresponding requests) which have the greatest effect on the performance.

·        Thread Overview
Contains an overview of the threads currently being used. The active threads and the components currently involved are displayed.

In all functions, times are specified in milliseconds, and data quantities are specified in bytes.