Re: [rules-users] Performance of compiler

Thank you for the quick reply and the tip Ingomar. Since our rules are template based I was able to merge them into 30 drls (850 before). This gave a 30% perfomance improvement, but we are still not able to compile more than 2 rules per second. I also tried to execute in with jdk 1.6.0_03 instead of 1.4.2_11. This only gave a small performance increase. We are also seing the same slow performance in our production environment wich is JDK 1.4.2_11 on Solaris, so this is not a OS spesific problem. I addition I tried to run the compilation in a dedicated process with 1G available memory with no performance increase, so it is not related to memory restrictions either. From our experimentation I see that the compile time, unsurpisingly, is directly connectet to the complexity of the rule. If i strip away he LHS and RHS of the rules and only keep the imports and global definitions I am able to get a compilation throughput at 24 rules per second. Are your rules much simpler than ours? Can you think of any other reason why you are seeing a much better compiler throughput? Regards Chr On Fri, Apr 17, 2009 at 10:34 AM, Ingomar Otter <iotter(a)mac.com&gt; wrote: > Christian, > with our app, we see a compile performance which is at least an order of > magnitude higher. > I would assume that in your case the extreme fine granularity of your DRLs > may be slowing things down. > Have you tried to consolidate these in bigger but fewer DRls? > > If you need that granualarity, you still have the option of joining these > together before running it with the help of perl and the likes. > > --I > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users