Hi Gurus, We are running a heavy batch operation of a banking application on RAC. Say the configuration is a 2 node 4 CPU Itanium2 box running 9.2.0.4. We have batch operation that can be run in parallel. What I am noticing is that when I run all the batch operations in node 1, it gets over in 2 hours . During this time, the other node is not used at all. To optimally use the resources , I run the batches across 2 nodes, I see a degradation in performance( the elapsed time would be around 3 hours).There are no blocking locks and interconnect performance is good( block transfer time is around 4ms). I am planning to do a 10046 on both the scenarios and compare the top SQL's and waits. I just wanted to know if any one of you had faced this issue before or is this normal?. Best Regards Sriram Kumar