RE: [openjms-user] Re: RMI poor performance for persistent/nonpersistent

[Tim A. <tm...@ne...>]

I wouldn't use receiveNoWait(), unless you have a sleep
in there - you'll end up wasting time performing unnecessary
network calls. If you are invoking Thread.sleep() use the
receive(timeout) method instead.

Having said that, I don't have any quick solution for you.
I'll be starting to profile the CVS version next week,
to see where the bottlenecks are.

> -----Original Message-----
> From: ope...@li...
> [mailto:ope...@li...]On Behalf Of Rupali
> Parab
> Sent: Tuesday, 8 July 2003 10:46 AM
> To: Jim Alateras
> Cc: ope...@li...
> Subject: [openjms-user] Re: RMI poor performance for
> persistent/nonpersistent
>
>
>
> If the subscriber is a transient one,
> the persistent messages at the consumer reach arnd 75msg/sec..
>
>
>
> > Hi,
> > Acc to suggestions,
> > I have now set up Mysql database for persistence,
> > and also removed the listener implementation from the
> SimpleConsumer code
> > and made it into synchronous receive with the receiveNoWait method.
> > and yet,
> > I received only around 150 messages for nonpersistent mode
> > and around 10-12 messages for persistent mode at the subscriber.
> > The publisher side happens to publish at really fast rates of
> > 500msges/sec.
> >
> > Do I need to change the servers listener  implementation as well?
> > Rupali
> >
> >
> >
> > On Tue, 1 Jul 2003, Jim Alateras wrote:
> >
> > > If you are using a listener to receive messages this is what
> happens. When
> > > message arrives at the server for a particular
> destination/consumer it will
> > > queue and the dispatcher will be notified of the event before
> returning
> > > control to the publisher. In another thread the dispatcher
> will deliver the
> > > message to the subscriber.
> > >
> > > Are you CPU-bound while you are running the test?
> > >
> > > If you are using a listener to receive messages try changing
> to synchronous
> > > receives.
> > >
> > >
> > > cheers
> > > </jima>
> > >
> > > > -----Original Message-----
> > > > From: Rupali Parab [mailto:rp...@cs...]
> > > > Sent: Tuesday, July 01, 2003 1:29 PM
> > > > To: Jim Alateras
> > > > Cc: ope...@li...
> > > > Subject: RE: [openjms-user] RMI poor performance for non persistent
> > > > mode.
> > > >
> > > >
> > > > Also the messages seem to be published at a rate as close
> as 225 msg/sec
> > > > but dont arrive at the subscriber at the same rate specifically at
> > > > 150msgs/sec.
> > > > could this be due to the priority mechanism for delivery of
> the messages
> > > > in a certain way.Since the messages seem to be sorted before being
> > > > delivered even for the nonpersistent mode.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > On Tue, 1 Jul 2003, Jim Alateras wrote:
> > > >
> > > > > The database doesn't come in to play for non-persistent
> > > > messages. Message
> > > > > size and number of clients connected to the server will effect
> > > > the message
> > > > > rate.
> > > > >
> > > > > cheers
> > > > > </jima>
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: ope...@li...
> > > > > > [mailto:ope...@li...]On
> Behalf Of Rupali
> > > > > > Parab
> > > > > > Sent: Tuesday, July 01, 2003 1:09 PM
> > > > > > To: ope...@li...
> > > > > > Subject: [openjms-user] RMI poor performance for non
> persistent mode.
> > > > > >
> > > > > >
> > > > > > Hi all,
> > > > > > I seem to be getting poor results for the RMI with just
> about 150
> > > > > > msgs/sec for the nonpersistent mode.
> > > > > > Some ppl on the list have got around 225 msges/sec.
> > > > > > Does the database involved for maintaining persistency affect
> > > > the message
> > > > > > rate?
> > > > > >
> > > > > > thanx
> > > > > > Rupali
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
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