Danielgs

IBM WebSphere Portal software family Your world. Your way.

IBM WebSphere Portal 7.0 Performance Tuning Guide
IBM Collaboration Solutions Performance Team December 2010 Document version 1

Contents
PERFORMANCE TUNING OVERVIEW ............................................................................................................................................ 1 EnvironmentConsiderations .............................................................................................................................................................. 2 32-bit and 64-bit Considerations .................................................................................................................................. 2 Hardware Multithreading (Hyper-Threading)................................................................................................................ 3 Portal Topologies......................................................................................................................................................... 3 BASE PORTAL TUNING................................................................................................................................................................... 6 Application Server Tuning .................................................................................................................................................. 7 JVM Initial and Maximum HeapSize............................................................................................................................ 7 JVM Heap Large Pages............................................................................................................................................... 9 JVM Heap New Area Size ......................................................................................................................................... 11 Shared Class Cache Size.......................................................................................................................................... 11 Additional JVM Arguments ........................................................................................................................................ 13 Additional SUN JVM Arguments................................................................................................................................ 13 Additional Z/OS JVM Arguments ............................................................................................................................... 13 JVM Heap Compressed References Option on z/OS ................................................................................................. 14 JDK fixes................................................................................................................................................................... 15 Session Timeout ........................................................................................................................................................ 15 Web Container Thread PoolSize............................................................................................................................... 16 DataSource Tuning.................................................................................................................................................... 16 Security Attribute Propagation................................................................................................................................... 18 Internationalization Service Tuning ............................................................................................................................ 18 Disabling Tagging And Rating ................................................................................................................................... 19 Disabling Friendly URLs...