Monitoring Top Services

The Top Services table displays the top services waiting for the corresponding wait event during the selected time period.

A service is a group of of applications with common attributes, service-level thresholds, and priorities. For example, the SYS$USERS service is the default service name used when a user session is established without explicitly identifying its service name. The SYS$BACKGROUND service consists of all database background processes. If a service is using the majority of the wait time, then you should investigate it.

To monitor a service: 

1. On the Performance page, in the Average Active Sessions chart, click a block on the chart or its corresponding wait class in the legend.

   The Active Sessions Working page appears.

2. Under Detail for Selected 5 Minute Interval, select Top Services from the View list.

   The Top Services table appears.

3. Click the Service link of the most active service.

   The Service page appears.

   This page contains information about the modules, activity, and statistics for the selected service.