[rules-users] Speeding up Drools

[Wolfgang Laun]

It would help to know the times before and after  the point marked
with (X) below.

1000 fields is weird. I'm inclined to think that there ought to be a
better way...

-W


On 04/10/2012, Phani Saripalli <saripalli.phani at gmail.com> wrote:
> HI.
>
> I am using declared types in my .drl file. I have a declared type with 1000
> fields (using the Drools 5.5. beta, so 1000 fields is allowed). I have 100
> rules. However, creating the stateful knowledge base is very slow. It is
> taking nearly 8 seconds. Can somebody tell me, suggest how can I speed up
> the process?
>
> Briefly, this is how I measured.
>
> long loadI = System.currentTimeMillis();
>             // load up the knowledge base
>             KnowledgeBase kbase = readKnowledgeBase();
>             StatefulKnowledgeSession ksession =
> kbase.newStatefulKnowledgeSession();
>
>             ksession.setGlobal("cList", new ArrayList<Integer>());
>             FactType fact = kbase.getFactType("com.sample", "Project");

//                 (X)

>             Object projIns = fact.newInstance();
>             ksession.insert(projIns);
>             long loadO = System.currentTimeMillis();
>             System.out.println("time to load facts : " + ((loadO / 1000.0)
> -
> (loadI / 1000.0)));
>
>             ksession.getAgenda().getAgendaGroup("Group Config").setFocus();
>             ksession.fireAllRules();
>             ksession.getAgenda().getAgendaGroup("Fact Config").setFocus();
>             ksession.fireAllRules();
>             ksession.getAgenda().getAgendaGroup("Group 0").setFocus();
>             ksession.fireAllRules();
>             ksession.getAgenda().getAgendaGroup("Group 1").setFocus();
>             ksession.fireAllRules();
>             ksession.getAgenda().getAgendaGroup("Group 2").setFocus();
>             ksession.fireAllRules();
>
>
> Many thanks
> Phani
>
>
>
> --
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