, does transactions
have so little impact on perfomance???
Why it takes about 250ms to invoke an empty function on ejb? Is it because
ejb are distrubuted objects? What else could affect the ejb performance?
Regards,
Savotchkin Egor
Web-technologies department
eMail: [EMAIL PROTECTED
on attributesn (Requires, supports, ...). So, does transactions
have so little impact on perfomance???
Why it takes about 250ms to invoke an empty function on ejb? Is
it because
ejb are distrubuted objects? What else could affect the ejb performance?
Regards,
Savotchkin Egor
you must have made
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
Hi, every one. First i'm sorry for my english.
We use servlet that call EJB. Next is code
fraction.
//---
public Vector findByFirstPage(DirHome home, Integer rowCount)
throws Exception{Vector rows= new
Vector();Dir dir= null;
: Orion-InterestSubject: EJB Performance
Question.
Hi, every one. First i'm sorry for my english.
We use servlet that call EJB. Next is code
fraction.
//---
public Vector findByFirstPage(DirHome home, Integer
rowCount) throws
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()));
[...]
understand? I can probably pseudo-code an example
if necessary.
-tim
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, November 14, 2000 3:56 AM
To: Orion-Interest
Subject: EJB Performance Question.
Hi, every one. First i'm sorry for my english.
We use
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
,
Jens Stutte
-Ursprüngliche Nachricht-
Von: Karl Avedal [mailto:[EMAIL PROTECTED]]
Gesendet am: Dienstag, 21. März 2000 18:49
An: Orion-Interest
Cc: Orion-Interest
Betreff: Re: EJB performance
Hello,
Note that when using BMP Entity beans a request is made to the db for every
bean
Ok,
after a day of testing and measuring, i have the following result (always
regarding the performance of the tests i described in the mail "EJB
performance"):
First of all: you are right, Karl (i have to apologize for the somewhat
"angry" other mail). A great deal of pe
Hi,
i made some tests regarding the EJB performance. Well... i know it's still
beta, and EJB is never lightning fast. But are you expecting some serious
improvements of performance with the release version ? Not to get me wrong,
i like the product and so on (and i know it's a general problem
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