[rules-users] Performance of JBoss Rules

[Dandrea Francesco]

Hi all,
I have to evaluate if JBoss Rules is a viable solution in this scenario:
We have to monitor a large network using performance alarms. These
alarms arrive every 15 minutes. We don't know the real rate, but peaks
of many tens of thousands of alarms every 15 minutes must be managed in
a timely way.
We want to use JBoss Rules to correlate these alarms, in order to show
less higher level  alarms to the users .
We have basically 2 use cases:
1) I have to correlate the alarms on a single node of the network. (for
example in node A I have 2 alarms of different severity about the
connection with node B, so I aggregate everything in a third alarm
saying "I cannot connect to node B from node A"). In this scenario I
have many workingMemories (one for each node) and not so many facts for
each working memory. The performance of JBossRules is very very good
(almost linear with the number of nodes)
2) I have to correlate alarms among the nodes. (for example all nodes
connecting with a node A have an alarm "I cannot connect to node A from
node ...", I want to create an alarm "The node A is unreachable").
In this scenario I'm very worried about the performance of JBoss Rules,
as I prepared a test case (in attachment) and I inferred that the growth
is highly non linear on the number of the facts. Is this performance
data wrong? Am I doing something stupid? Can someone comment?
 
Here are the numbers (The numbers are not so important, but rate they
grows is)
 
Number of Facts	 Time to assert alla the new allarms (seconds)	 Time to
modify the alarms to close them (seconds)	 Total	
1000	 1.735	 0.969	 2.704	
2000	 5.875	 3.000	 8.875	
3000	 12.281	 6.406	 18.687	
4000	 23.672	 11.672	 35.344	
6000	 52.282	 23.250	 75.532	
8000	 87.188	 42.532	 129.720	
12000	 200.767	 94.642	 295.409	
16000	 360.909	 176.579	 537.488	
20000	 518.019	 263.158	 781.177	
 
Or in a graph:
 
 
 
Thanks a lot for your interest.
 
 
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