[rules-users] How to improve performance with large number of rules and facts ?

[laune]

virajn wrote
> I'm using this project as a experiment. Therefore condition of the all
> rules are same and they will fire once for all the objects. Following is a
> sample.
> 
> when
>         UserProfile( profile == UserProfile.STUDENT )
>         $book : Book( student == true )
> then
>         $book.setEligible(true);
> end

A textbook example of a no-no-rule. If you insert 5000 UserProfile facts and
5000 Book facts this rule will fire 25,000,000 times, and creating these
activations is bound to take time. If you don't test with useful rules you
won't get useful results.

-W




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