[rules-users] drools performance : max limit on # of facts for each execution

[Maxim Veksler]

I would be interested to hear the time measurements of such inserting
into a stateless session.

The alternative is obviously holding a statefull session, and
continuously updating it with new facts. The cons of this is
performance... A painful issue.

On Tue, Nov 18, 2008 at 6:15 PM, techy <techluver007 at gmail.com> wrote:
>
> I take back.. I noticed that it happened while I was doing memory profiling.
> for normal execution, it works fine..
>
> Is there any limit on # of facts to be inserted into stateless session?  or
> does it depend only on heap size?
> thanks.
>
>
> techy wrote:
>>
>> If I have set of rules(say 5 rules for now.. which just compares few
>> fields in facts and increments execution count on Rule Object as a
>> consequence) working on single fact and I have huge amount of data to
>> process,
>> How many maximum facts can I insert into stateless session at a time for
>> faster execution of rules for each execution?
>>
>> I inserted to 50,000 facts into stateless session(desktop runs in win XP,
>> and assigned 500MB head size to the java process) and with drools debug
>> enabled, I noticed that insertion itself takes(>10 secs) considerable
>> time.
>>
>> I would like to know best practices in such situations. appreciate your
>> help.
>>
>> Thanks!
>>
>
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>
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-- 
Cheers,
Maxim Veksler

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