We have seen a nice reduction in CPU usage and  utilitizing jumbo packet.

The documentation mentions it can be improved further by using "-ptcpip pagesize=8192,mclbytes=8192". My question is how
 will this affect memory usage and performance if jumbo packet are not used.

I guess if the jumbo packet size is set at 9000 pagesize should be 12288 which means it's not as efficient memory wise?