At 14:48 14.11.00 , you wrote:
>Thanks Robert. I think I'll try running some
>benchmarks this week and post the results. I wonder..
>is there a way for and EJB->EJB to be _forced_ to
>go through RMI? i.e. can I turn this optimization
>off?
I don't think there is a documented way to to this.
robert
>-tim
>
>
> > -----Original Message-----
> > From: Robert Krueger [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, November 14, 2000 1:36 PM
> > To: Orion-Interest
> > Subject: RE: EJB Performance Question.
> >
> >
> > At 12:06 14.11.00 , you wrote:
> > > > At 10:03 14.11.00 , you wrote:
> > > > >Every single one of those calls to dir.getXXX() has to go across
> > > > >the network via RMI. This is slow. You are better off using a
> > > >
> > > > well, with orion this is intra-vm so its not that bad ...
> > >
> > >Is there proof that Orion does this? I'm not trying to be a jerk,
> > >but I'd like to see some numbers on how long a set/get takes for
> > >a client-to-ejb call and an ejb-to-ejb (same vm) call.
> >
> > do a getClass().getName() on your ejbobject. will be the same
> > wrapper class
> > that implements the ejbobject (if you look into the generate
> > code that's
> > temporarily there on deployment).
> >
> > anyway, I've never benchmarked but it is orders of magnitude
> > faster than
> > any rmi stack I've seen. I think there's even an old mail in
> > the archive
> > from karl that confirms this otiomization because it was one
> > of the first
> > things I asked (must at least be 10 months ago now).
> >
> > regards,
> >
> > robert
> >
> > >Not even Weblogic optimizes to pass-by-value for intra-vm ejb
> > >
> > >calls. You have to use TopLink to get that optimization.
> > >Funny though, Weblogic provides a tag in their deployment
> > >description but it doesn't do anything.
> > >
> > >-tim
> >
> > (-) Robert Krüger
> > (-) SIGNAL 7 Gesellschaft für Informationstechnologie mbH
> > (-) Brüder-Knauß-Str. 79 - 64285 Darmstadt,
> > (-) Tel: 06151 665401, Fax: 06151 665373
> > (-) [EMAIL PROTECTED], www.signal7.de
> >
> >
(-) Robert Krüger
(-) SIGNAL 7 Gesellschaft für Informationstechnologie mbH
(-) Brüder-Knauß-Str. 79 - 64285 Darmstadt,
(-) Tel: 06151 665401, Fax: 06151 665373
(-) [EMAIL PROTECTED], www.signal7.de
