recommended thread config for 4 cpu data node? (no replies)

I'd like to know if there is, or if anyone has, a recommended ThreadConfig/Lock<x>ThreadtoCPU/MaxNoOfExecutionThreads threads config for a 4 CPU/core data node?

Also if it's still recommended to turn RealTimeScheduler off with ndbmtd. I know example configs stated this.

The machine is dedicated to the data node, has eth0 and eth1, eth1 for data node traffic, CentOS 6, EC2 (r3.xlarge).

Thanks