Thanks to point me the single / several CPU reasons. That could be the reason. So I need to re-check my code.
Frederic ----- Original Message ----- > Does anyone get an experience with the JVM from IBM ? Only a little. We tried it on linux (opteron). The IBM 1.5 exhibited performance characteristics similar to the Sun JVM, and was quite a bit slower than JRockit. It did work though! > And I found some strange behaviour. Also, right now, I can't say > if this is my app or anything else (I use also Oracle 10g as part of > the component). > Some of the strange behaviour I found was for instance that I get > some null pointer exception on closing mina sessions, which I never > get before. I'd be willing to bet that your PC is a single CPU and your AIX box has several CPUs? It is probably a threading bug in your code. We found that we could test our app on a single CPU box but only when we moved it onto a real SMP box did all the threading bugs manifest themselves... We also found that the in-VM transport in MINA was great for pinpointing subtle threading bugs. RG
