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From drvillo <f.viv...@gmail.com>
Subject Re: performance degradation
Date Fri, 05 Jan 2007 14:59:08 GMT


A follow up, memory usage (over a heap of 256Mb) is higher when throughput
is,
and then stabilize around 30Mb, when things start to slow down...

Thus it seems  that the system that resources are just not exploited
somehow,
from which my other post of the day.

Any hint?
Francesco


drvillo wrote:
> 
> Hi everybody
> 
> Running an embedded broker on tcp transport and journaled jdbc persistence
> I find that throughput drops from ~100 msg/sec to ~1-2 msg/sec. No matter
> of changes on the jca parameters, memory limit and threadpool size.
> Could it be a persistence issue?
> It happens after ~50000 messages have been sent. I have a prefetch size
> set
> on the RA of 10000, thus the queues are always empty.
> 
> Thanks and,
> cheers
> Francesco
> 

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