This course introduces sampling-based performance tools such as Compuware Strobe, IBM Application Performance Analyzer, and Macro4 FreezeFrame, which are available for z/OS environments. It describes what these tools are, the information that they provide, and how this assists with application performance tuning. It includes information on the tools currently available, performance implications when using them, and how to minimize any impact they may have on the system. It also steps through how sampling sessions can be started, and the key parameters for such sessions.
Existing mainframe application programmers with a knowledge of z/OS and z/OS application development.
Completion of the following Interskill courses:
z/OS Concepts and Components
IBM Development Environment
or equivalent knowledge.
After completing this course, the student should be able to:
Describe what sampling tools are, and how they work
Identify sampling tools currently available
Describe how to start a sampling tool session
Explain the performance implications when using sampling tools