Tool Mentor: Analyzing Runtime Behavior Using Rational XDE Developer










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Tool Mentor: Analyzing Runtime Behavior Using Rational XDE Developer















This tool mentor describes how to use Rational XDE Developer to analyze runtime behavior.


Tool: Rational XDE Developer






Relationships



Related Elements


Analyze Runtime Behavior






Main Description



Overview The steps in this tool mentor match those in the task. Links to topics in the Rational XDE™ online Help are marked with . This tool mentor currently only covers how the Visual Trace capability, integrated with Rational XDE, can help a developer analyze run-time behavior. Note that Visual Trace is not available in all Rational XDE configurations. Visual Trace dynamically records the execution of an application to a trace sequence diagram. A trace sequence diagram displays the flow of control of an application in a sequence diagram format. A trace sequence diagram also provides information on timing, threading, code coverage, and memory usage of the traced application. The following steps are performed in this tool mentor: Determine required execution scenario Prepare implementation component for runtime observation Prepare environment for execution Execute the component and capture behavioral observations Review behavioral observations and isolate initial findings Analyze findings to understand root causes Identify and communicate follow-up actions Evaluate your results Determine required execution scenario There is no Rational XDE specific guidance for this step. Prepare implementation component for runtime observation The application you wish to trace must be built and executable Launch the Visual Trace Settings Wizard.  See Tracing an Application. Select the classes in your application that you wish to include in the trace Select whether you want to record from the beginning of the application or manually control recording during the execution. Prepare environment for execution There is no Rational XDE specific guidance for this step. Execute the component and capture behavioral observations Launch the application in either run or debug mode.  If you have selected to start recording from the beginning of the application, a trace sequence diagram will be created and your application will be traced. If you selected manual control of recording, run the application to an appropriate point (i.e. a pause waiting for user input, a breakpoint you set previously), start Visual Trace recording,  and a trace sequence diagram will be recorded from that point. Review behavioral observations and isolate initial findings The trace sequence diagram captures important run-time behavior that will help you understand and debug your application. The trace sequence diagram accurately captures the flow of control and helps you understand the application and identify potential problems. To further assist in debugging the application, the thread status bar indicates the active threads during the run, timing information is displayed on the diagram, function level code coverage is displayed, and optionally memory usage is displayed. Trace sequence diagrams can be filtered and collapsed to include only relevant information. See Navigating Through Trace Sequence Diagrams. Analyze findings to understand root causes There is no Rational XDE specific guidance for this step. Identify and communicate follow-up actions There is no Rational XDE specific guidance for this step. Evaluate your results Trace sequence diagrams can be converted into XDE Sequence Diagrams and stored within XDE models. See Reusing a Trace Sequence Diagram. Diagrams in XDE models can be published  to html format. Also note that diagrams can be copied from the Rational XDE software tool to Microsoft Word and other programs.





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