This soft copy for use by IBM employees only.

7.2 Collecting Data with Performance Monitor

To collect and display Performance Monitor data, you can either choose from the View pull-down menu one of the following options, or you can click on one of the smart icons located at the top of the Performance Monitor main panel.

The options are:

1. Chart (smart icon )

It graphically displays (in real-time) how the values of counters change in response to changes in system load conditions. Two display modes are available: line graph or histogram. Refer to 7.3, ªChart Viewº for more details.

2. Alert (smart icon )

This view, discussed in 7.4, ªAlert Viewº on page 124, is particularly useful for monitoring servers in a distributed environment where centralized administration and alerts are tracked by the logging mechanism. For each alert that you are monitoring, you have to supply a threshold value. When the specified alert threshold value is reached, the alert is written to the application log. You also have the option to start a corrective procedure to perform tasks that are aimed at containing the problem that triggered the alert.

3. Log (smart icon )

In order to perform time-lapse analysis, real-time data is stored to disks for retrieval later. This view is described in 7.5, ªLog Viewº on page126.

4. Report (smart icon )

This is useful for observing numeric values of multiple counters simultaneously and helps in deciding which counters to place in a chart. This view, detailed in 7.6, ªReport Viewº on page129, is also useful for the exportation of specific sets of numeric data from Performance Monitor to applications such as Excel or Lotus 1-2-3.

7.3 Chart View

The chart view can be displayed by selecting Chart View from the View

pull-down menu, or clicking on smart icon .

When a system object is selected for display, the values of the specified counter is charted in a graphical format as shown in Figure 93 on page 121. This graph is displayed in real-time and reflects any changes in system load. The example in Figure 93 on page 121 shows only one object being measured, but multiple objects can be selected for simultaneous charting.

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IBM SG24-4763-00 manual Collecting Data with Performance Monitor, Chart View