Customizing the Database Performance Page

You can customize the Performance page so that it specifically addresses your requirements. As explained in "Monitoring Instance Activity", you can specify which charts you want to appear by default in the Performance page, and how you want them to appear. You can also decide whether to include baseline values in the Throughput and Services charts.

Enterprise Manager stores persistent customization information for each user in the repository. Enterprise Manager retrieves the customization data when you access the Performance page and caches it for the remainder of the browser session until you change the settings.

To customize the Performance page: 

1. From the Database Home page, click Performance.

   The Performance page appears.

2. On the Performance page, click Settings.

   The Performance Page Settings page appears.

3. In the Detailed Chart Settings section, choose the defaults for display of the instance activity charts. Complete the following steps:

   1. In Default View, select the instance activity chart to appear by default in the Average Active Session section.

      See "Monitoring Instance Activity" for a description of the Throughput, I/O, Parallel Execution, and Services charts.

   2. In Throughput Chart Settings, select Per Second or Per Transaction as the default instance throughput rate to be displayed in the Throughput chart.

      See "Monitoring Throughput" to learn how to use the Throughput charts.

   3. In I/O Chart Settings, select the default I/O breakdown to be displayed in the I/O chart.

      See "Monitoring I/O" to learn how to use the I/O charts.

4. In the Baseline Display section, choose how AWR baselines will be displayed in the performance charts. Do one of the following:

   • Select Do not show the baseline values to prevent baselines from appearing.

   • Select Show the 99th percentile line using the system moving window baseline to specify a percentile to display for the Throughput and Services charts.

   • Select Show the 99th percentile line using a static baseline with computed statistics and then select a baseline name from the Baseline Name list.

     You can select only baselines that have undergone schedule statistics computation, as described in "Computing Threshold Statistics for Baselines".

5. Click OK.

   The Performance page appears.

   The charts are now displayed according to your customized settings.

   Related Topics

   Monitoring Real-Time Database Performance

   Managing Baselines