Re: [rules-users] Drools 4 performs slower then Drools 3 - Help on .drlfile adaptation

Hi Joe, On Wed, Nov 19, 2008 at 8:16 PM, Joe White <Joe.White(a)recondotech.com&gt;wrote: > Maxim, > > Depending on your use case you may be able to disable shadow facts in your > Drools 4 instance. See the manual on when it is ok/not-ok to disable shadow > facts. Based on your description it probably is acceptable for your uses. > Disabling shadow facts may improve your performance, the manual has details. > > > > To disable shadow facts: > > RuleBaseConfiguration conf = *new* RuleBaseConfiguration(); > > conf.setShadowProxy(false); > > base = RuleBaseFactory.*newRuleBase*(conf); > > > Thank you for the tip, I've added the following flags : conf.setShadowProxy(false); conf.setAlphaMemory(false); conf.setIndexLeftBetaMemory(false); conf.setIndexRightBetaMemory(false); and yet I'm seeing performance that are not near what I've been expecting, am I doing something wrong or does drools gives me all that he can : [maximv@mldev2 ~]$ awk -f awk_avg_ruleEngineFacade.getMatch.awk /var/log/Manager.log avg: 35.9153(ms) for 1027 calls This is an example of the kind of rules we're using (modified) : rule "Context OtherObject" when $f : FilteringStateConnector($ContextId : ContextId, $subscriberId : subscriberId) $subscriber : Subscriber(id == $subscriberId, $subscriberOtherObject : OtherObject, OtherObject != null , OtherObject != "") $OtherObject : PropertyInstance(type_ == PropertyInstance.OtherObject_PROPERTY_TYPE, code == $subscriberOtherObject) $Context : Context(code == $ContextId, OtherObjects contains $OtherObject) then $f.setPassedRuleRecord("Context OtherObject"); end > *From:* rules-users-bounces(a)lists.jboss.org [mailto: > rules-users-bounces(a)lists.jboss.org] *On Behalf Of *Maxim Veksler > *Sent:* Wednesday, November 19, 2008 8:36 AM > *To:* Rules Users List > *Subject:* [rules-users] Drools 4 performs slower then Drools 3 - Help on > .drlfile adaptation > > > > Hello everyone, > > > Please allow me to briefly describe how our system works: > > We use drools as an efficient matching layers - I have X rules, in the RHS > of each rule I have a mark for each rule to signal that it has passed in the > current context (There are by definition more then 1 contexts). After the > first fireAllRules() has finished, and I have the data structure that allows > me to query what rules have passed for each context I assert a "Marker" > object, that allows Drools to continue filtering only for these contexts > that I decide as valid to match attempts. > > The end result, is that I have 2 fireAllRules called with some java code > in between them. > > > In drools3 for 3 contexts I got the following resutls : > > == Drools Section (Generic Call) : With default context settings, no > HotSpot. > RESULT:::::::: avg: 33.9023(ms) for 1555 calls > > Now in drools4 I'm getting the following: > > == Drools Section (Generic Call) : With default context settings, no > HotSpot - Drools 4 > RESULT:::::::: avg: 37.4356(ms) for 1467 calls > > > > As I increase the context's number I'm getting larger difference in > results time. > Please note that HotSpot is disabled just for the test, to not JIT > interference. > > I've disabled all evals in the drl files, to all is left is pure Drools > syntax and yet It seems that the system works slower. > > Please suggest what else I should be doing to optimize the drl files to > work efficiently with Drools 4 engine. > > > Thank you, > Maxim. > > -- > Cheers, > Maxim Veksler > > "Free as in Freedom" - Do u GNU ? > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- Cheers, Maxim Veksler "Free as in Freedom" - Do u GNU ? _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users