[rules-users] Drools memory use issues

Greetings! I'm using Drools 4 and have a simple test setup with 4 rules. If I run with a few facts (simple objects that hold a type and a floating point value only) everything works as advertised. If I bump the number of facts up to 100 it runs most of the time without changing the defaults on the virtual machine. However, if I change the number of facts to 500 and change the virtual machine memory limits to 1024 MB the engine grinds to a halt and eventually dies with an out of memory error. What are the reasonable limits for Drools in terms of facts in the working memory and number of rules? I will try a test with hundreds of rules today but I was very surprised, and disappointed, to see that so few facts eat so much memory. The project my company needs Drools for will likely have to run the engine on a working memory with about 100..150 facts and do so every 1 to 2 seconds. Can Drools keep up? How can performance be improved? Thanks! Ron _________________________________________________________________ Introducing Live Search cashback . It's search that pays you back! http://search.live.com/cashback/?&pkw=form=MIJAAF/publ=HMTGL/crea=int...