[jboss-jira] [JBoss JIRA] Created: (JBRULES-2982) Massive performance degradation from 5.2.0.M1 to 5.2.0.M2

[Roman Novak (JIRA)]

Massive performance degradation from 5.2.0.M1 to 5.2.0.M2
---------------------------------------------------------

                 Key: JBRULES-2982
                 URL: https://issues.jboss.org/browse/JBRULES-2982
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core  (expert)
    Affects Versions: 5.2.0.M2
            Reporter: Roman Novak
            Assignee: Mark Proctor
            Priority: Critical


the drools-planner SolutionInitializer takes 75 minutes to complete im 5.2.0.M2
5.2.0.M1 took 9,5 Minutes

It also seems that accumulation queries with init, action, result sections break down completely in performance.
The following query takes now 3 minutes 45 secs to complete. Before it was ~1 sec.
The cardinalities:
PostingPeriodOpt = 5 
MediumLocationOpt = 25000
MediumBookingOpt = 13000

query "queryMediumPartlyTaken"
	$pp : PostingPeriodOpt()
 	$mlo : MediumLocationOpt(mTypeId == $pp.mTypeId) 
   	$mp: MediumPeriodUsage( subOptimal > 0 ) from accumulate(
       	$mbo : MediumBookingOpt ( mediId == $mlo.mediId, eval(timeInterval.overlaps($pp.getCycle())) ),
       	init ( MediumPeriodUsage $mpu = new MediumPeriodUsage($mlo, $pp); ),
 		action( $mpu.addBooking( $mbo.getIndexRange() );  ),
        result( $mpu  )
       )      
end

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