Hi, I am using drools 5.0.0 CR1 on sun sparc machine with JRE 1.6.0_12. The JVM has 2GB heap and 256 permGen settings. Recently I have noticed that the adding the deserialized package to the rulebase takes almost 7 minutes time. The serialized cache files contains 4000 rules and the file size is 40MB. The de-serialization is pretty quick but adding this package to the rulebase is taking lot of time. Other observations: ============= 1. The the task on windows PC takes lesser time. 2. During addpackage method execution, I had observed lots of Garbage collection happening though there is plenty of heap available. Can you please suggest a way to improve this task timing ? Regards. Subba. -- View this message in context: http://drools.46999.n3.nabble.com/adding-de-serialized-packages-to-the-ru... Sent from the Drools: User forum mailing list archive at Nabble.com.