Profiling an application

The Profiling Tool offers powerful visualization features that enable you to pinpoint performance and memory usage problems within your applications. You can profile various types of applications, including Java and Web applications, regardless of what application server you are running on.

Note. The iSeries JVM requires the following options to generate method entry and exit events for method statistics:

      -Dos400.enbprfcol=1 -Djava.compiler=jitc

To profile an application, the Agent Controller must be installed and running on the host where the application under test resides.

Profile your Java, Web, or EJB applications from the Profiling and Logging perspective:

Selection box of perspectives showing selection of Profiling and Logging

Note: Profiling data can slow down your application.

Workflow

The workflow for profiling is as follows:

Set profiling preferences
Set profiling filters
Launch or attach a process
Use the Profiling and Logging views to study the data being collected
Save profiling data or resources if you expect to use them again

Related reference
Time