WebSphere Application Server provides tunable settings for its
major components to enable you to make adjustments to better match the runtime
environment to the characteristics of your application.
Before you begin
Many applications can run successfully without any changes to the
default values for these tuning parameters. Other applications might need
changes, for example, a larger heap size, to achieve optimal performance.
About this task
Before you read a description of WebSphere Application Server for
z/OS tuning guidelines, it is important to note that, no matter how well the
middleware is tuned, it cannot make up for poorly designed and coded applications.
Focusing on the application code can help improve performance. Often, poorly
written or designed application code changes will make the most dramatic improvements
to overall performance.
Procedure
- Review the WebSphere for z/OS configuration. One simple way to
do this is to look in your application control and server regions in SDSF.
- When each server starts, the runtime prints out the current configuration
data in the joblog.