[rules-users] Drools 5.2 performance building KnowledgeBase

Has anyone out there experienced any slowdowns using Drools 5.2 to build a knowledge base? I have around 700 drl files (containing anywhere from 1 to 30 rules each) and the time to build a KnowledgeBase with them has increased from about 10 minutes in Drools 5.1 to 90 minutes in Drools 5.2. I realize I have a slow computer here, but the time difference between the two versions is staggering. I have already been serializing the KnowledgeBase object for performance reasons and even loading the serialized KnowledgeBase takes about 3-4x longer in 5.2 than in 5.1. Am I doing something wrong here? Here are some code snippets of how I am building and loading the kbase: //////////////////////// Building final KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); final List<File> drlFiles = getAllDrlFiles(directory); for (final File name : drlFiles) { kBuilder.add(ResourceFactory.newFileResource(name), ResourceType.DRL); } if (kBuilder.hasErrors()) { // .... } final KnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase(); kBase.addKnowledgePackages(kBuilder.getKnowledgePackages()); ObjectOutputStream oos = null; try { oos = new DroolsObjectOutputStream(new FileOutputStream(pkgFile)); oos.writeObject(kBase); } catch (...) { // .... } //////////////////////// Loading ois = new DroolsObjectInputStream(new FileInputStream(pkgFile)); final KnowledgeBase kBase = (KnowledgeBase) ois.readObject(); final StatefulKnowledgeSession ksession = kBase.newStatefulKnowledgeSession(); Thanks! -- View this message in context: http://drools.46999.n3.nabble.com/Drools-5-2-performance-building-Knowled... Sent from the Drools: User forum mailing list archive at Nabble.com.