Do you constrain the number of possible matches of 10 elements, which, without constraints, is quite a number (10! = 3628800)?
Tests that produce a highly unlikely scenario aren't particularly useful. -W On Wed, Apr 14, 2010 at 11:40 AM, murphy <[email protected]> wrote: > > Hello, > > I did some tests to get an opinion about the performance of drools (5.0.1). > > At one test I have a rule with 10 objects (same object-type) declared as > condition and got an OutOfMemoryException. I noticed that the memory usage > increases when I insert the last facts into my > StatefulKnowledgeSession. On fact 7 it increases with 10MB, on fact 8 with > 46MB and on fact 9 with 170MB. > > I debuged a little bit in the drools-source and noticed that the > LeftTupleMemory increased exponential with the number of facts I inserted. > > My question about this behaviour: > Is a condition limited to a handful of facts or do I have to change the > syntax to get it working? I know that I could insert the same object-types > as a list, but assume that I have 10 facts with different object-types. > > Thanks in reply, > Christian > > -- > View this message in context: > http://n3.nabble.com/high-memory-usage-for-rules-with-more-than-6-facts-as-condition-tp718114p718114.html > Sent from the Drools - User mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users
