Statistics

The following table describes the default statistics supported by enabler for WebSphere Application Server. The enabler for WebSphere Application Server uses PerfServletApp to collect various performance metrics. This performance servlet (provided with IBM WebSphere as an installable application) provides a way to use an HTTP request to query the performance metrics for an entire WebSphere Application Server administrative domain.

The performance servlet provides the performance data output as an XML document. The enabler for WebSphere Application Server parses this XML document using XPath expressions defined in the enabler’s description file as supported statistics. You can select and track these statistics from the Component Wizard. Tracked statistics are available for report output. You can also create Policy rules based on any tracked statistic.

Name Description Units

WebSphere Response Time

The average time taken to process a message to the server.

Milliseconds

WebSphere Thread Count

The total number of threads in the thread pool.

Threads

WebSphere Throughput

The number of requests per second processed by the queue.

Requests per second

WebSphere Heap Size

The current size of the JVM heap.

MB

WebSphere Used Memory

The memory used by the JVM.

MB

WebSphere Session Count

The number of servlet sessions cached in memory.

Sessions

WebSphere Connection Pool Size

The size of the database connection pool.

Connections

WebSphere Connection Pool Percent Used

The percentage of the database connection pool in use.

Percentage

WebSphere Connection Pool Waiting Threads

The number of threads that are waiting for a database connection.

Threads

WebSphere Archive Throughput

Request throughput per archive.

Requests per second