Performance tips for Websphere 6.1

[gonzalad]

Hello,

This tip allowed us to boost performance of some JSF Seam applications on WAS 6.1.

1. Never use system property -Xquickstart (when we removed it, CPU usage was 3 times less).


2. Use Xgcpolicy:gencon (when we added it, page response time was 2 times better).

To enable gencon garbage policy :

1. Login in admin console,


2. Menu Servers > Application servers


3. Select your app server


4. Select Server Infrastructure > Java and Process Management > Process Definition


5. Select Java Virtual Machine


6. Add in Generic JVM arguments  : -Xgcpolicy:gencon


7. Verify and Save and Restart you appserver

Hope it helps !