IBM WEBSPHERE 6.1.X - Manual (Page 2)

Contents
PERFORMANCE TUNING OVERVIEW ............................................................................................................... 2
Environment Considerations ................................................................................................................ 3
32-bit and 64-bit Considerations ....................................................................................................... 3
Hardware Multithreading (Hyper-Threading) ........................................................................................ 3
BASE PORTAL TUNING ................................................................................................................................. 4
Application Server Tuning ................................................................................................................... 5
JVM Initial and Maximum Heap Size ................................................................................................. 5
JVM Heap Large Page .................................................................................................................. 7
JVM Heap New Area Size .............................................................................................................. 8
Additional SUN JVM Arguments ....................................................................................................... 8
Session Timeout ......................................................................................................................... 9
Web Container Thread Pool Size ..................................................................................................... 9
Security Attribute Propagation ....................................................................................................... 10
VMM Context Pooling ................................................................................................................. 11
ORB Service Tuning For z/OS ....................................................................................................... 11
WebSphere Portal Services ............................................................................................................... 12
Navigator Service ...................................................................................................................... 12
Registry Service ........................................................................................................................ 13
Cache Manager Service .............................................................................................................. 14
Database Tuning ............................................................................................................................ 15
Datasource Tuning For DB2 ......................................................................................................... 15
DB2 Database Server Tuning ........................................................................................................ 15
Oracle Database Server Tuning ..................................................................................................... 19
Other Database Considerations ..................................................................................................... 21
Directory Server Tuning .................................................................................................................... 22
Web Server Tuning ......................................................................................................................... 23
Operating System Tuning .................................................................................................................. 25
AIX ........................................................................................................................................ 25
Linux ..................................................................................................................................... 26
Windows 2003 .......................................................................................................................... 26
Solaris .................................................................................................................................... 27
Z/OS ...................................................................................................................................... 29
Required Fixes .............................................................................................................................. 29
WEB 2.0 THEME TUNING ............................................................................................................................. 30
JVM Initial and Maximum Heap Size .................................................................................................... 30
Navigator Service Properties .............................................................................................................. 30
Internet Explorer Support of Vary Header ............................................................................................... 31
Caching Proxy Tuning ...................................................................................................................... 31