[prev in list] [next in list] [prev in thread] [next in thread] 

List:       jboss-user
Subject:    Re: [JBoss-user] Entity Bean Performance Tuning Help
From:       Dain Sundstrom <dain () daingroup ! com>
Date:       2002-10-31 22:36:26
[Download RAW message or body]

Darren Hartford wrote:
> Have been having similar issues, and my 'psuedo-hack' tests show similar
> results to Georg, so thank you Georg for pointing out that the database
> lookups are not the problem, but the object conversion piece.
> 
> I don't wish to sell other products, but for a reference, has anyone
> seen a difference if they switch to another CMP Persistance engine such
> as Gemstone?  I tried their eval on Jboss3.0.3, but I couldn't get it to
> work in my environment.  Would be nice to know as a reference if solving

I don't mind you selling Gemstone as they are a JBoss partner.  Gemstone 
should be significantly faster then almost any persistence code as it is 
using a fast persistent object cache under the covers so there is no 
object conversion.  Also relationship navigation is super fast because 
they have live references in cache and I need to do a db call.

> the entity-bean performance is clearly tied to CMP/Persistance, and also
> have available proven workarounds for people that have short timelines
> (yeah, I'm one of the many :-P). Please do not debate about commercial
> versus open-source methodology, just looking for solution to immediate
> business problems and methods to identify areas of improvements :-).

I plan on running Gerog's test soon as there is really no reason for the 
code to be any slower, but I am working on a new prefetch cache that can 
merge at the end of a tx.

> Oh, and LIMIT/OFFSET's would be awesome!!!

Agreed.

-dain



-------------------------------------------------------
This sf.net email is sponsored by: Influence the future 
of Java(TM) technology. Join the Java Community 
Process(SM) (JCP(SM)) program now. 
http://ads.sourceforge.net/cgi-bin/redirect.pl?sunm0004en
_______________________________________________
JBoss-user mailing list
JBoss-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/jboss-user
[prev in list] [next in list] [prev in thread] [next in thread]