Some options for Tomcat 6

Not much options found, but I drop down the useful ones for reference. Note that those options should be assigned to the CATALINA_OPTS. Actually, you may put them in catalina.bat.

• Startup memory size
  -Xms256m

• Maximum memory size
  -Xmx256m

• Garbage collection path
  -Xloggc:/gc.log

• Disable DNS caching
  -Dsun.net.inetaddr.ttl=0

• Skip quote escape checking (If you have tag like this <mytags:tag value="<%= "hi!" %>" /> , which is validate in Tomcat 5 before. In Tomcat 6, you may need to turn on the following option to prevent running into error. Ref: http://www.andowson.com/posts/list/346.page)
  -Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPE=false

• Turn on JMX remote
  -Dcom.sun.management.jmxremote
  -Dcom.sun.management.jmxremote.port=9004
  -Dcom.sun.management.jmxremote.authenticate=false
  -Dcom.sun.management.jmxremote.ssl=false

• Set default Tomcat language / locale to English
  -Duser.language=en