[EJB 3.0] New message: "Re: EJB3 slower than EJB2"
by No Name
User development,
A new message was posted in the thread "EJB3 slower than EJB2":
http://community.jboss.org/message/523211#523211
Author : No Name
Profile : http://community.jboss.org/people/ekric
Message:
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Okay. The answer is clear, it has something to do with the traffic caused by the Server and it's protocols and has nothing to do with the programming model.
I allready thought about doing some other tests, that show that the new Implementations used aren't slower.
But it was my task to do exactly these tests. So I was the unlucky one to find that bottleneck...
Would you advise me to do some other tests? If yes, which ones would you do?
Thank you and have a nice sunday evening.
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13 years, 7 months
[EJB 3.0] New message: "Re: EJB3 slower than EJB2"
by Andrew Rubinger
User development,
A new message was posted in the thread "EJB3 slower than EJB2":
http://community.jboss.org/message/523208#523208
Author : Andrew Rubinger
Profile : http://community.jboss.org/people/ALRubinger
Message:
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> ekric wrote:
>
> Thank you for your reply.
>
> Is there a chance for me to test that new implementation?
>
> I'm at the moment working on my bachelor thesis: Migrating from EJB2 to EJB3.
>
> At this point of my testing work it's hard to explain why EJB3 is slower, while we thought it should be faster.
>
> Any Ideas?
>
> Thank you very much.
Unfortunately we don't yet have this in place to test. Requires some more discussion, work/coding, then integration.
As a general issue though:
What would lead you to conclude that EJB3 is necessarily faster than EJB2? They're different specification versions of a programming model, and speed is a function of the underlying implementation. In many scenarios we've found that our EJB3 implementation is faster than in previous versions, and we work to improve this as time goes on. This case here is clearly slower, but that's not a function of the programming model itself.
S,
ALR
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13 years, 7 months
[EJB 3.0] New message: "Re: EJB3 slower than EJB2"
by No Name
User development,
A new message was posted in the thread "EJB3 slower than EJB2":
http://community.jboss.org/message/523203#523203
Author : No Name
Profile : http://community.jboss.org/people/ekric
Message:
--------------------------------------------------------------
Thanks for your respond. What difference do you mean? It takes longer (almost twice as long) for the 10000 creates to finish in EJB3.
As you can see in my first post.
I'm using normal Entity Beans in both Versions.
*EJB3:*
+package de.ibs.profi.hilfetext;+
+import java.sql.Date;+
+import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Transient;+
+@Table(name = "...")
@Entity(name = "...")
public class ...$$$ implements java.io.Serializable {+
+ /**
* private static final long serialVersionUID = -5953089278565486983L;
*/+
+ boolean bLocked;
private Integer id;
...
+
+ public void setBLocked(boolean bLocked) {
this.bLocked = bLocked;
}+
+
+
+ ...
+
+ @Id
@Column(name = "ID")
public Integer getId() {
return id;
}+
+ @Transient
public boolean getBLocked() {
return bLocked;
}+
+ ...
}+
*EJB2:*
+package ...;+
+import javax.ejb.EJBLocalObject;
import java.sql.Date;+
+public interface ... extends EJBLocalObject {+
+ public void setBLocked(boolean bLocked);+
+ public boolean getBLocked();
+
+ ...+
+}+
+
+
+package de.ibs.pakt.hilfetext;+
+import javax.ejb.EntityBean;
import javax.ejb.EntityContext;
import javax.ejb.CreateException;
import javax.ejb.RemoveException;
import java.sql.Date;
import javax.ejb.FinderException;
import java.util.Collection;+
+public abstract class ...Bean implements EntityBean {+
+ EntityContext entityContext;
boolean bLocked;+
+ public Integer ejbCreate() throws CreateException {
+
+...+
+}+
I hope that answers your question.
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13 years, 7 months
