VM param optimization - Tomcat 7 and JDK 1.6

Deployment Env (web server only)

1. 16 GB RAM
2. Doble XEON processor (Intel)
3. Centos 5.5 as OS
4. Tomcat 7
5. JDK 1.6

Question is what would be best VM param and Connector options and for tomcat?

Current Conn开发者_StackOverflowector:

<Connector port="8080" address="${jboss.bind.address}"
maxThreads="1000" maxHttpHeaderSize="8192"
emptySessionPath="true" protocol="HTTP/1.1"
enableLookups="false" redirectPort="8443" acceptCount="200"
connectionTimeout="20000" disableUploadTimeout="true"/>

JV param :

-server -Xms10G -Xmx10G -XX:MaxPermSize=1G -XX:+UseConcMarkSweepGC 
-XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:-TraceClassUnloading 
-Dsun.io.useCanonCaches=false -Dsun.net.client.defaultConnectTimeout=60000
-Dsun.net.client.defaultReadTimeout=60000

Thanks.