Re: [rules-users] Migrating from 4.0.7 to 5.4.0.Final

Date: Wed, 4 Jul 2012 06:31:00 -0700 From: mario.fusco(a)gmail.com To: rules-users(a)lists.jboss.org Subject: Re: [rules-users] Migrating from 4.0.7 to 5.4.0.Final Hi again, You are looking at the correct branch and I didn't change the MvelConstraint class indeed. What I did is to change the ClassGenerator to try to avoid the creation of new ClassLoaders (when possible). Said that what I don't understand is why you expect the generated classes to be garbage collected. They are used to evaluate the constraints in your rules, so I don't think they could/should be CG'd anyway. Am I missing something? Anyway we are realizing that the required PermGen space could be a problem especially if you have a big rule base, so I am going to add a configuration option that will allow you to define how many space you want to give to these JITted constraints. Once the engine will hit this limit it will just stop JITting further constraints leaving them run in interpreted mode. Hopefully the users will be able to find a good trade-off between performances and memory occupation in this way. Does this make sense to you? Mario -- View this message in context: http://drools.46999.n3.nabble.com/Migrating-from-4-0-7-to-5-4-0-Final-tp4... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users