Operating Systems: i5/OS
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Introduction: Application profiling
Explore the key concepts pertaining to application profiling, a
WebSphere extension for defining strategies to dynamically control concurrency,
prefetch, and read-ahead.
- Application profiling
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You can use application profiling to identify particular units of work
to the WebSphere Application Server runtime environment. The run time can
tailor its support to the exact requirements of that unit of work.
- Application profiling tasks
-
Tasks are named units of work. They are the mechanism by which the run
time environment determines which access intent policies to apply when an
entity bean's data is loaded from the back end system.
- Automatic configuration of application profiling
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The Application Server Toolkit (AST) includes a static analysis engine
that can assist you in configuring application profiling. The tool examines
the compiled classes and the deployment descriptor of a Java 2 Platform, Enterprise
Edition (J2EE) application to determine the entry point of transactions, calculate
the set of entities enlisted in each transaction, and determine whether the
entities are read or updated during the course of each identified transaction.