[rules-users] Drools Performance

Hi,
I am wondering about using Drools rule engine.
I have to threat with a large data set, so I would like to know about rule
engine performance.

Could someone help me?


Thanks a lot,
Elena




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[laune]

No answer can be given without the asker providing substantial information.

As to your (only) question: yes, that's the idea of this list.

Ciao
-W

On 1 July 2012 19:00, [hidden email] <[hidden email]> wrote:

Hi,
I am wondering about using Drools rule engine.
I have to threat with a large data set, so I would like to know about rule
engine performance.

Could someone help me?


Thanks a lot,
Elena




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[hidden email]
https://lists.jboss.org/mailman/listinfo/rules-users

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[Cedric Hurst]

Hi Elena,

Sorry I missed you on IRC earlier.  Before addressing rule engine performance, you want to make sure you have a clear understanding of how the Rete algorithm works.  This is the algorithm that drives most rule-based expert systems, including Drools.  There's a great presentation series which explains Drools and Rete at a high level:

http://salaboy.com/2011/03/17/drools-5-community-training-module-1-drools-blip-theoretical-introduction/

http://planet.jboss.org/post/drools_5_community_training_module_4_rete_algorithm_introduction

With that in mind, performance can vary greatly depending on the types of rules and the complexity and interrelationship between facts.  The size of the data set itself (referred to as facts) is only one piece of the equation.  If you have the money to spend, I'd highly recommend the "Performance" chapter of the Packt book available here:

http://www.packtpub.com/drools-jboss-rules-50-developers-guide/book

There's also a good discussion of the pros and cons of using a rule engine available here on stack overflow:

http://stackoverflow.com/questions/2167358/pros-and-cons-of-java-rules-engines

If you have more specific questions beyond the basics, as Wolfgang says, that's what this list is for.

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On Sunday, July 1, 2012 at 12:00 PM, [hidden email] wrote:

Hi,

I am wondering about using Drools rule engine.

I have to threat with a large data set, so I would like to know about rule

engine performance.

Could someone help me?

Thanks a lot,

Elena

_______________________________________________

rules-users mailing list

[hidden email]

https://lists.jboss.org/mailman/listinfo/rules-users

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[hidden email]
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