Do you constrain the number of possible matches of 10 elements, which,
without constraints, is quite a number (10! = 3628800)?
Tests that produce a highly unlikely scenario aren't particularly useful.
-W
On Wed, Apr 14, 2010 at 11:40 AM, murphy <christian.niehues(a)its-telco.de> wrote:
Hello,
I did some tests to get an opinion about the performance of drools (5.0.1).
At one test I have a rule with 10 objects (same object-type) declared as
condition and got an OutOfMemoryException. I noticed that the memory usage
increases when I insert the last facts into my
StatefulKnowledgeSession. On fact 7 it increases with 10MB, on fact 8 with
46MB and on fact 9 with 170MB.
I debuged a little bit in the drools-source and noticed that the
LeftTupleMemory increased exponential with the number of facts I inserted.
My question about this behaviour:
Is a condition limited to a handful of facts or do I have to change the
syntax to get it working? I know that I could insert the same object-types
as a list, but assume that I have 10 facts with different object-types.
Thanks in reply,
Christian
--
View this message in context:
http://n3.nabble.com/high-memory-usage-for-rules-with-more-than-6-facts-a...
Sent from the Drools - User mailing list archive at
Nabble.com.
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users