Hello everyone, last day I did some tests concerning the performance of Hibernate within Jboss and "standalone". I came to some disappointing results concerning the performance within JBoss (using CMT):
1) The datasource access seems to be significantly slower as with Hibernate "standalone". In some examples it was three times slower. 2) Moreover I was not able to do caching (using Hasttable, EhCache, as well as JBoss' TreeCache) beyond the scope of a single transaction. This dramatically decreases the performance. I mean the following: When I perform a certain select statement for the first time within a transaction it takes about 750 msecs, if i perform it again within the same transaction (i.e., within the same ejb-method call) it takes 60 msecs. Now, if perform this transaction (i.e. ejb-method call) again and again, it always takes the same 750 resp. 60 msecs. For me it seems that there is no caching beyond transaction scope. Btw, I encountered no differences when using transactional, read-write, nonstrict-read-write caching.... Now I wonder about the following: Did I do something seriously wrong? Is it not possible to do caching beyond the scope of a single transaction (which seems to be very unlogical to me)? Btw, I used a standard hibernate-service.xml. Moreover, I used postgres and the standard postgres-ds.xml. (but hsqldb was the same). Thanks a lot for your help, best wishes and happy eastern Michael ************************************************** View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3871678#3871678 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3871678 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ JBoss-Development mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jboss-development
