[rules-users] Upgrade to Drools 5 - loss of performance

[Scott Reed]

Edson,
  I figured I must have missed some docs explaining changes required for 
the upgrade. If I suspected this was an inherent problem with the 5.0 
release I'd have supplied lots of info. I am inferring from the response 
that there are no known issues with 5.0 upgrade so I'll do my own 
investigation for a while. Let's hope I find something unrelated to the 
Drools.
  Scott

Edson Tirelli [5/28/2009 12:52 PM] wrote:
>
>    Scott,
>
>    As others already mentioned, your e-mail does not help much. We 
> need to know what is "unacceptably slow". How much slower is that? 
> 10%, 100%, 1000%? Also, we need a description of your use case: what 
> kind of rules do you use, how many rules, how many facts, etc. 
> Finally, we need a way to reproduce the problem.
>
>    So, if you can provide more info, we might be able to help.
>
>     []s
>     Edson
>
> 2009/5/28 Scott Reed <sreed at avacoda.com <mailto:sreed at avacoda.com>>
>
>     I just upgraded our app from Drools 4 to 5 libraries. We just use
>     the rules engine with DRL. The performance of the engine on our
>     rulebase is unacceptably slow.  I assume there is something we
>     need to do to our rules or the way we are configuring the engine
>     to fix this. I don't see anything in the release notes about
>     backwards compatibility issues. I would very much appreciate it if
>     someone would direct me to any documentation that explains what
>     needs to be done so our 4.0 rules perform at least as well as they
>     did before the upgrade?
>     Thanks,
>      Scott
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>
>
>
> -- 
>  Edson Tirelli
>  JBoss Drools Core Development
>  JBoss, a division of Red Hat @ www.jboss.com <http://www.jboss.com>
> ------------------------------------------------------------------------
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