Performance with entity bean... What am i doing wrong??

hello,
My configuration:
Development = OC4J 10g 9.0.4.0.0 standalone
Production = Oracle IAS 10g 9.0.4
JBoss version = 4.0.3 SP1
I have an application using CMP Entity beans. My architecture uses Stateless session bean to access to the entities and values objects to transfer the data.
One of this entity beans has the following parameters:
id : NUMBER(20)
name : VARCHAR(255)
data : BLOB
2 values objects are used to access the entity bean:
MyLightValueObject with parameters: id and name
MyValueObject with parameters: id, name and data
The method findAll of my stateless session bean takes about 255 ms when there are 50 objects in the database under JBoss, but takes more than 10 seconds when deployed on OC4J.
<pre>
     public java.util.Collection findAll() throws javax.ejb.FinderException,
               javax.naming.NamingException {
          // This statement takes about 200 millisonds on either server.
          java.util.Collection selected = getLocalHome().findAll();
// The access to light value object took 10 seconds under OC4J !
          ArrayList retval = new ArrayList(selected.size());
          for (Iterator i = selected.iterator(); i.hasNext();) {
               retval.add(((ClauseLocal) i.next()).getClauseLightValue());
          return retval;
</pre>
I tried the following link already :
http://download-west.oracle.com/docs/cd/B10464_02/core.904/b10379/optj2ee.htm#sthref529
However, when I redeploy my ear on the server, whatever the options specified on the entity-deployement tag, the server reset his default options. Moreover, the locking_mode attribute is not specified in the DTD.
Could you please help me.... Thanks for your comprehension.

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VI attached
Still confused after 8 years.
Attachments:
RPM.vi ‏92 KB

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Possible reason(s):
Analysis: The cut-off frequency, fc, must meet: 0 <= fc <= fs/2.
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Message Edited by Matt A on 09-04-2007 07:58 PM
Matt Anderson
Hardware Services Marketing Manager
National Instruments
Attachments:
RPM (Modified).JPG ‏17 KB
RPM (modified).vi ‏72 KB

Performance with entity bean... What am i doing wrong??

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