Hi Anil,
The first you need to determine where are you showing the slowness? It can be installing or deploying an application (management) or with the applications.
When the slowness occurs how is the CPU? memory? network? is a problem with all the applications or only in one? in all the servers or only in one? performance degradation
If the problem is with the application you need to check all the tiers (presentation, logic, data, other systems) ans try to determine if some of the tiers has any problem. If you hasn't (apparently) any problem you need to determine where is more time consuming (in which tier).
When you found the tier you need to determine if you have a bottleneck (configuration/tunning) or if a degradation problem (product, poor development).
With performance issue only data and measurements are valid to compare, if not all are feelings (I think that now goes slower, now faster,....sensations
Is not easy to explain a performance problem determination or Troubleshooting
My suggestion
Go to Suport Home
www-947.ibm.com/support/entry/portal/ove... Select (Choose a product) WebSphere Application Server and IBM Http Server products (if your DB is DB2 selec too)
When you have selected both products, mark "Allow multiple selections"
Then go to troubleshoot tab and you will have all requiered documents for troubleshooting.
As guide you can use the next technote:
Troubleshooting Guide for WebSphere Application Server
www-01.ibm.com/support/docview.wss?uid=s... Usefull tools (free)
Inside the Adminconsole Tivoli Performace Viewer
Monitoring and Tuning > Performance Viewer > Current® Activity > server_name > Performance Modules
WebSphere Application Server Performance Tuning Toolkit www.ibm.com/developerworks/websphere/dow... IBM Monitoring and Diagnostic Tools for Java - Health Center Version 2.2 www.ibm.com/developerworks/java/jdk/tool... For RaviG problem I suggest the next mustgather:
MustGather: Problems during deployment of EAR/JAR/WAR files in WebSphere Application Server http://www-01.ibm.com/support/docview.wss?rs=180&context=SSCR4XA&q1=MustGatherDocument&uid=swg21199344&loc=en_US&cs=utf-8&lang=en#show-hide In WAS v8.5 you have a lot enhances for problem determination and server health
new for troubleshooters
pic.dhe.ibm.com/infocenter/wasinfo/v8r5/... Health management
publib.boulder.ibm.com/infocenter/ieduas... Administering Intelligent Management
pic.dhe.ibm.com/infocenter/wasinfo/v8r5/... "Use Intelligent Management for application edition management, intelligent routing, application server health management, and to improve performance by using dynamic clustering and overload protection. You can prepare the hosting environment for dynamic operations, manage application editions, monitor operations, configure Intelligent Management to work with other IBM® products, and so on."
Hope this helps.
Kind regards