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.