On 29 July 2011 23:02, Ryan R. <[email protected]> wrote: > > As a follow up question, do you think Drools and Rules Engines in general > are the way to go for operations that distort object field values one > object > at a time? Would an embedded scripting language better fit this usecase? > > The first Chapter of the "Expert" manual has the sections "Why (not) to use a rule engine", and that's probably the best one can do for a remote diagnosis.
> I also did some additional benchmarking with virtually the same stateful > session setup. > > The below plot shows execution time of the rules engine for Java POJO > (static) and MessagePack (Dynamic) Messages from 1000 - 200K messages in > step sizes of 1000 messages. I was surprised to see the discrete jumps of 1 > second in execution time. I was also surprised to see that on the low end > execution time for a few thousand messages was 1 second? That seemed slow > and why the discrete jumps? > I'd suspect that the 1 second for 1k is some basic initialization that's included in the measured interval. But I don't see how the time can remain constant over wide ranges. (I take it that you were timing the overall execution time for doing n*1000 messages.) If MessagePack requires more memory than Pojo, the earlier jump to 2sec may be due to garbage collection. How did you obtain these times? -W > > Sorry no label on plot: > > Y Axis is Exec time in seconds > X Axis is Number of Messages (Step Size 1K messages) > > > http://drools.46999.n3.nabble.com/file/n3210745/WithPayloadNoFieldRemoval.jpg > > Ryan R. > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Stateful-vs-Stateless-Session-Performance-tp3208057p3210745.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users >
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