Re: [rules-users] Re: Performance Tuning

Mark Proctor <mproctor <at> codehaus.org> writes: > I assume you are on 3.0, as the properties system should be overhauled. > However left beta node indexings should be true, for both 3.0 and 4.0. I > can't remember if alpha node hashing is true or false in 3.0, but in 4.0 > its false as default and then gets turned on when you try to do dynamic > rule additions. But in all honest you shouldn't be touching that stuff > unless you really know what you are doing. Turning of left beta node > indexing only improves performance for rules that are always activated > from the root (first) pattern. > Yes, I am using 3.0.6. Here are the defaults from RuleBaseConfiguration.java: RuleBaseConfiguration.PROPERTY_INDEX_LEFT_BETA_MEMORY = false RuleBaseConfiguration.PROPERTY_INDEX_RIGHT_BETA_MEMORY = true RuleBaseConfiguration.PROPERTY_HASH_OBJECT_TYPE_NODES = true RuleBaseConfiguration.PROPERTY_HASH_ALPHA_NODES = false For an application that has hundreds of thousands of facts in memory with few rules would any of these settings improve the performance of joins? thanks, -- yuri _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users