RE: RE: Horrible performance when publisher connects remotely

Any chance you can profile your code and see where the time is
being taken? 

> From: Jacob Ven
> 
> Mmm, I am pretty frugal, only one connection and one session 
> are created by the publisher and subscriber at startup time 
> (each running in their own jvm)
> 
>  
> > Message: 1
> > From: "Tim Anderson" <[email protected]>
> > To: <[email protected]>
> > Subject: RE: [openjms-user] Horrible performance when publisher 
> > connects remotely
> > Date: Thu, 2 Feb 2006 20:48:33 +1100
> > Reply-To: [email protected]
> > 
> > See inline. 
> > 
> > > From: Jacob Ven
> > > 
> > > When I have all my subscribers, JMSserver and one
> > publisher
> > > running locally I am getting around 40+ events /
> > second.
> > > When I run my publisher on a different machine and
> > connect to
> > > the JMS server using the provider url tcp:ip
> > address:port the
> > > performance drops to 0.5 events/sec (that is one
> > event every
> > > 2 seconds).  This is not due to network latency. 
> > Ideas?
> > 
> > On windows (at least), communications within the local host is via 
> > shared memory, and therefore much faster than going over 
> the network.
> > I'd expect better performance however. How are you using connection 
> > and session instances?
> > Connections are expensive to create, so its best to use one for all 
> > operations. Sessions are less expensive, but each time you 
> create one, 
> > several calls need to be made to the server.
> > 
> > > 
> > > Also is it possible to setup multiple servers
> > where the
> > > publishers/subscribers connect to their local
> > server and the
> > > server forwards the messages to each other ?
> > 
> > No. You'd need to develop this yourself.
> > 
> > -Tim
> > 
> 
> 
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