[rules-users] Does Drools Fusion consume a lot of memory?

[chrisLi]

Hi, Edson and all

    I am making an experiment on Drools Fusion these days. I found it
consumes a lot of memory. And the 

number of rules, the fields of events, the complexity of rules affect the
memory usage.

    The flow of my experiment is as follow:

    1. I have two tables, one for Transaction, one for account. The
transaction table have a foreign key 

        number which is the primary key of account table.

    2. In one thread, I loaded transaction data and account data into a
ArrayBlockingQueue, whose size is 100000.

    3. In another thread, I inserted the Transaction as events and the
related account as facts into the 
      
        Fusion Engine.

    4. I used a java profiler tool to monitor the memory usage of the Fusion
engine, and recorded the 

highest heap memory usage of ecah round of my experiment.

   Here is the results:

         Amount of events     highest heap memory usage(MB)
              5000	                          268
              10000	                          470
              15000	                          555
              20000	                          645
              25000	                          845
              30000	                          958
              35000	                          1011
              40000	                          1127
              45000	                          1331
 
Is this the normal memory usage of Drools Fusion? Otherwise, did I make a
mistake?

See the attachments for the rules and  Java Model classes . If you are
intrested in this experiment, I can upload all codes. 

Thank you very much.  I will appreciate for your response.

http://drools.46999.n3.nabble.com/file/n4018307/Cep1.drl Cep1.drl 

http://drools.46999.n3.nabble.com/file/n4018307/TransactionEvent.java
TransactionEvent.java 

http://drools.46999.n3.nabble.com/file/n4018307/Account.java Account.java 
       

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