At 14:28 16.12.00 , you wrote:
Hi all!
I made some tests to find out how transactions affect
performance. I called
a sessionless' ejb empty function with different transaction attributes. It
turned out that call time mean was about 250 ms and it almost not changed
depending on
PROTECTED]]On Behalf Of Robert Krueger
Sent: Saturday, December 16, 2000 2:57 PM
To: Orion-Interest
Subject: Re: ejb performance
At 14:28 16.12.00 , you wrote:
Hi all!
I made some tests to find out how transactions affect
performance. I called
a sessionless' ejb empty function with
Hi Savotchkin!
Could you please describe, what you did to activate pooling? I tried this for
my application, but without success... (could you maybe post you datasource
xml?)
thx in advance
Marcus Lankenau
Yeah!!! I forgot that in this function I got not pooled db connection. So,
after I
ssage-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Marcus Lankenau
Sent: Saturday, December 16, 2000 6:30 PM
To: Orion-Interest
Subject: Re: ejb performance
Hi Savotchkin!
Could you please describe, what you did to activate pooling? I tried this
for
my application, but with
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
rt your
application to another container, you aren't guaranteed
this optimization. The above bulk accessor/View pattern
will always work.
-tim
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, November 14, 2000 7:04 PM
To: Orion-Interest
Subject: Re: EJB Per
At 10:11 AM 11/15/2000 +0100, you wrote:
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
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
bulk
accessor pattern. For example, createa new class
called
DirView which contains all the attributes of your Dir EJB.
Then
make a
single call to the Dir EJB to
Hi ±èöȸ,
public Vector EJBToRow(Dir dir) throws Exception {
[...]
row.add(dir.getId());
row.add(new Long(dir.getPId()));
row.add(dir.getName());
row.add(new Long(dir.getSerial()));
row.add(new Long(dir.getChildCount()));
row.add(new Long(dir.getDepth()));
[...]
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 ...
bulk accessor pattern. For example, create a new class called
.. although a
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
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?
If you're referring to the enable-call-by-reference tag, then indeed it
does do something (at lease in version 5.1). Setting this tag to true
will effectively pass EJB method arguments and returned objects by
reference when called within the same JVM, rather than by value in
accordance with the
: 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
Thank You for your kind reply. Can I get some pseudo-code an example?
Thank you.
- Original Message -
From: Tim Drury
To: Orion-Interest
Sent: Wednesday, November 15, 2000 12:03
AM
Subject: RE: EJB Performance Question.
Every single one of those
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