Contents for Tuning WebLogic JRockit with WebLogic Server on Linux
Introduction
Why is Tuning Necessary?
How Do You Tune a JVM?
Migrating Applications to WebLogic JRockit
What Linux Operating Systems Does WebLogic JRockit Support?
Installing WebLogic JRockit with WLS on Linux
Running WebLogic JRockit JVM with WebLogic Server on Linux
Starting BEA WebLogic JRockit
Starting BEA WebLogic JRockit JVM from the Command Line
Starting BEA WebLogic JRockit from the Node Manager
Configuring WebLogic JRockit JVM by Using Command Line Options
Standard Command Line Options
Presenting General Information Options
Setting Logging Options
Non-standard Command Line Options
Setting Behavioral Options
Displaying Logging Information
Using a Thread System
Using a Memory Management System (Garbage Collection)
Starting a Garbage Collector
Default
Printing a Comprehensive Report
Tuning WebLogic JRockit JVM with WebLogic Server on Linux
Basic JRockit Tuning
Setting the Initial Heap Size
Default
Setting the Maximum Heap Size
Default
Setting -Xmx to Avoid Fragmentation
Setting the Size of the Nursery
Default
Setting Thread Local Object Allocation
Default
Defining When a Memory will be Cleared
Default
Setting the Thread Stack Size
Default
Tuning Tips and Techniques
Determine What You Want to Tune For
Set the Heap Size
Tune for High Responsiveness
Tune for High Performance
Analyze Garbage Collection and Pause Times
Modify Threading Options When Using a Large Number of Threads
Check for Task and Open File Allowance
Optimizing WebLogic JRockit for Use with WebLogic Server
Configuring JRockit for WebLogic Server
Setting Options by Using the Node Manager
Monitoring WebLogic JRockit JVM from WebLogic Server
Running JRockit with Thin Threads on WebLogic Server
Switching to WebLogic JRockit JVM in WebLogic Server
Migrating to WebLogic JRockit with WebLogic Server on Linux
Additional Migration Information
Required Changes
Changes to Environment Variables
Changes to Start-up Scripts
Changes to config.xml
Enabling Core Dumps
Migration Restrictions
Migration Support