Displaying performance data

After you have collected performance data, learn how to display the data using the most appropriate tool for your purposes.

Displaying performance data helps you analyze your system's performance more accurately. Performance data can be displayed in many different ways; however, you may find a certain performance application more appropriate in some situations. Most applications display data collected with either Collection Services or from a performance trace. The best way to access that data depends on whether you are attempting to resolve a performance problem, are monitoring your system performance to plan for future growth, or are identifying trends.

Displaying near real-time performance data

Use the following tools to display current or recent performance information:

Control language (CL) commands

There are many commands in the operating system that you can use to view current information about specific areas of system performance.

Performance Tools plug-in

The Performance Tools licensed program includes a plug-in for iSeries™ Navigator that displays performance data from Collection Services collection objects. You can also view detailed information about the jobs on the system and print Performance Tools reports.

System and job monitor

These monitors display performance data for many system elements. Monitor data is based on the collection objects, and the monitor displays data as it is collected, according to the collection interval in Collection Services.

Displaying historical performance data

Use the following tools to view data that is stored on your system:

PM iSeries

PM iSeries automates the collection, archival, and analysis of system performance data and returns clear reports to help you manage system resources and capacity.

Graph history

Graph history provides a graphical display of up to one week's worth of performance data depending on the retention period in Collection Services. With PM iSeries, graph history can display much longer periods of data collection.

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Related concepts
Collection Services IBM Performance Management for eServer iSeries Graph history