Re: [rules-dev] FYI: Performance degradation from 5.0.1 to 5.1.0

5.1.1 is slightly faster, but still beaten by 5.0.1. 5.1.1: reference.drl Count: 80000reference.drl Time: 6812msreference.drl Time per element: 0.08515msBAR Duplicates: 32012FOO Duplicates: 31938 5.1.0: reference.drl Count: 80000reference.drl Time: 7533msreference.drl Time per element: 0.0941625msBAR Duplicates: 31832FOO Duplicates: 32642 5.0.1: reference.drl Count: 80000reference.drl Time: 4814msreference.drl Time per element: 0.060175msBAR Duplicates: 32494FOO Duplicates: 31578 I tried running 5.2.0.SNAPSHOT but the tests died with the following exception: org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java:org.drools.rule.builder.dialect.java.JavaDialectConfiguration' at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:275) at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:260) at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:173) at org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:151) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:216) at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:147) at org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilder(KnowledgeBuilderFactoryServiceImpl.java:34) at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:47) at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:66) at com.sample.DroolsTest.go(DroolsTest.java:31) at com.sample.SimpleTest.fromTest_200(SimpleTest.java:29) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:637) Caused by: java.lang.RuntimeException: The Eclipse JDT Core jar is not in the classpath at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:94) at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:55) at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:271) ... 33 more ... Removed 20 stack frames --- On Thu, 9/2/10, Edson Tirelli <tirelli(a)post.com&gt; wrote: From: Edson Tirelli <tirelli(a)post.com&gt; Subject: Re: [rules-dev] FYI: Performance degradation from 5.0.1 to 5.1.0 To: "Rules Dev List" <rules-dev(a)lists.jboss.org&gt; Date: Thursday, September 2, 2010, 11:59 PM    Greg,    Can you check 5.1.1 instead? There was a problem in 5.1.0 that caused indexes to be disabled in certain situations and also a bug on "exists". In general, we had the opposite feedback: reduction of memory usage and performance increase due to reduced GC overhead.    Edson