Hi all,

I'm trying to optimize the startup times of my hibernate based application (Hibernate Version 3.1.2 + Annotations).

Currently the hibernate startup takes approx. 8 seconds for 229 classes. 1 second is spent creating the configuration, 7 seconds building the session factory.

That is actually not bad - something like 0,03 sec per class with most time spent doing some class inspection/reflection whatever. I've profiled the application and it looks as if there are no easy gains to expect. Good work :-)

Simple tests on my side have shown that the time spent building the session is linear to the numer of classes. So the only "easy" way to reduce startup time - mainly for junit tests - is to reduce the number of persisted classes by commenting them out in the hb.xml files.

Nothing new so far for you guys...

But what I'm really missing is a way to find out quickly which persisted classes I need. Therefore it would be great if there was some sort of statistics function which I can turn on at hibernate initialization time and call at the end of my application. The output would be pretty simple - a list of all persisted classes accessed.

Thx in advance for your help.

Created jira issue with proposed patch

http://opensource.atlassian.com/project ... e/HHH-2035