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.