[rules-users] Memory Control

[Kang Heng WU]

No. We do not keep the 300K and 500K facts or events in the working
memory. We use retract to remove the fact and events, or we set the
expire value in events. 300K is the total number of the handled message.

OK. We will take a look at GC(garbage collection) frequency. How can we
solve the GC frequency in JBoss Expert or Fusion? Should we set the GC
frequency in Java or JBoss?

Thanks,
Kent

-----Original Message-----
From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: Friday, May 25, 2012 3:36 PM
To: Rules Users List
Subject: Re: [rules-users] Memory Control

Experet and Fusion are the same Engine. The difference you are
reporting is bound to be due to different Event types and different
rules.

There are several possibilities why things slow down. Have you
analysed your application's behaviour using the usual monitors, e.g.,
to learn about GC frequency?

Do you need to keep 300K or 500K facts in WM?

-W

On 25/05/2012, Kang Heng WU <khwu at astri.org> wrote:
> Hi All,
>
> The performance of JBoss Expert and Fusion is fine. The throughput of
> JBoss Expert and Fusion is about 9900 and 4500 messages per second.
But
> we meet the following problems.
>
> When the number of handled messages is about 500,000, the performance
of
> Expert is very slow. Its memory is about 300 Mbyte.
>
> When the number of handled messages is about 300,000, the performance
of
> Fusion is very slow. Its memory is about 300 Mbyte.
>
> What is the problem? How can we solve it?
>
> Thanks in advance,
> Kent
>
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