Performance - Asynchronos RFC

Hi

I have developed the following scenario

JMS -> XI -> RFC

this is asynchoronous interfaces because I dont need an answer ,there r 200,000 messages coming from the JMS Provider ( small sized 78 chars)

should I expect perfomance problems? how can I check it?

I have tought of 2 solutions

1.to ask for gatherd JMS Messages ( its will b only 613 messages ) - less calls for RFC.

2.use abap server proxy

any1 have exprinced such secnario?

Thx,Shai