some performance tuning tips..

IBM JVM setting running on vcpus,

Consider there are 4 vcpus:
heap size: each vcpu should be allocated 1024mb
gc threads: (no of cpu -1) - 1 cpu should be left for OS

Apart from this standard config, tune the threads in webserver, webcontainer and db according to your application needs:

You can use top down approach-

web-500 web container-100 db -50

bow tie approach

web -500 web container-50 db-100

stage configuration

following tables hold details as to which tables can be propagated.

STGSITETAB  STGMRSTTAB STGMERTAB