You may want to add the following JVM tuning parameters to the JAVA_OPTS in the bin/run.conf (UNIX) or run.bat (Windows) file:

The effectiveness of the StringCache can be checked using the JMX-Console. Look for StringCache under Catalina in the JMX-Console page.

For the JVM command-line, the following settings can be used:

If you are using JDK 1.4, you may want to experiment with the garbage collection settings to see what gives you the best performance. This is not necessary with JDK 1.5.

 
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