Memory usage of NHibernate in Windows Applications

tj · **Posted:** Tue Jul 05, 2005 12:42 pm

Hi,
I use NHibernate to Get a Simple Object ( say a User object with attributes Id, Name and Date Of Bearth) all things go rights,

but when I see Memory taken by the Application, it grows by many Megabytes for only a small object.

is this a correct behaviour of NHibernate ? or is beacuse I use Debug version of Dlls ?

Note I use one session (ISession) in order to have objects in cache, I tested with 10 objects.

thank you,
tj

KPixel · **Posted:** Wed Jul 06, 2005 12:44 pm

So, your problem is about memory usage; not performance !?!

tj wrote:

it grows by many Megabytes for only a small object.

Are you sure that this megabytes are used by your "small object" ?

The creation of the Configuration and the SessionFactory can take a good amount of memory; and don't forget that .NET takes far more memory than native applications (at the loading)

Try to load 100 objects then 1000 and finally 10000; the memory usage should grow (almost) like native applications (that is sizeof(YourObject) * Number of instances)