Advisors provide a variety of recommendations that help improve the performance of your
application server.
Before you begin
The advisors provide helpful performance as well as diagnostic advice about the state of the
application server.
About this task
Tuning WebSphere® Application Server is a critical part of getting the best performance from your
website. However, tuning WebSphere Application Server involves analyzing performance data and
determining the optimal server configuration. This determination requires considerable knowledge
about the various components in the application server and their performance characteristics. The
performance advisors encapsulate this knowledge, analyze the performance data, and provide
configuration recommendations to improve the application server performance. Therefore, the
performance advisors provide a starting point to the application server tuning process and help you
without requiring that you become an expert.The Runtime Performance Advisor is extended to also
provide diagnostic advice and is now called the Performance and Diagnostic Advisor. Diagnostic
advice provides useful information regarding the state of the application server. Diagnostic advice
is especially useful when an application is not functioning as expected, or simply as a means of
monitoring the health of application server.
Procedure
-
Decide which performance advisor is correct for the purpose, Performance and Diagnostic Advisor or Tivoli® Performance Viewer
advisor.
- Use the chosen advisor to periodically check for inefficient settings, and to view
recommendations.
- Analyze Performance Monitoring Infrastructure data with performance
advisors.
What to do next
Additionally, you can use the heap monitor feature to monitor the Java™ Virtual
Machine (JVM) heap size of a WebSphere Application Server profile in comparison to pool size. The
feature is available for new WebSphere Application Server profiles or profiles that are created after
you update to the WebSphere Application Server. For existing WebSphere Application Server profiles, there is a script
available to add the feature. See the heapMonitor script information.