Hi, I have implemented a small amount (around a 100) rules. Then I made some performance tests for my implementation to see how fast my implementation is. However I have noticed a tends whenever running tests for a long time. It seems that every time i insert an object, validate it, and then remove it from the ksession using .retract(t), the following insertion gets slower and slower. This doesn't really show in the beginning, but after the first couple of million objects, i really starts to escalate.. Have anyone noticed the same kind of thing? I am positive the i retract *all *my objects after validating, but still, it seems to get slower. Is the any way to do an extra clean, without retracting the rules or do I simply need to reinitialize the ksession occasionally? Thanks in advance! -- Peter Troelsen