[rules-users] Drools, Performance issues on 4.0.7 Vs 2.5

[Rout, Sushanta (ThoughtMill)]

We were using Drools 2.5 version earlier. Now we have switched to drools
4.0.7. But we see significant issues with performance like drools 4.0.7
is three times slower than 2.5 . Has anybody encountered the issue?

Here is a sample of the rule, we have some more similar to this.
rule "test"
	dialect "java"
	activation-group "group1"
	when
		$croNumberDetailsRequest : CRONumberDetailsRequest()
		$resdirectPhoneNumber : ResdirectPhoneNumber()
		eval($resdirectPhoneNumber.getType().getId() == 5 &&
	
$resdirectPhoneNumber.isValidForBrand($croNumberDetailsRequest.getBrand(
)) &&
			 $croNumberDetailsRequest.getRegion() != null &&
	
$resdirectPhoneNumber.isValidRegion($croNumberDetailsRequest.getRegion()
) &&
			 $croNumberDetailsRequest.getLocale() != null &&

	
$resdirectPhoneNumber.isValidForLocaleId($croNumberDetailsRequest.getLoc
ale()) &&
	
$resdirectPhoneNumber.isValidSlot($croNumberDetailsRequest.getSlot()));

	then
		ResultList.add($resdirectPhoneNumber);
end