Should we use NHibernate

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Ours is an ERP Product which deals with huge amounts of Data and we have developed it with a DAO Layer using NHibernate and Burrow. Now after one year many performance issues started creeping up. Mainly with Bulk Data Read & Write operations.

And now we are clueless on how to increase the performance. We have gone through lot of articles and implemented Stateless Sessions, but still no improvement.

Can anybody please suggest a way out of this? We don't want to get tied to a DBMS by using Stored Procedures.

Do all ORM work the same way?

Posted 10-Jul-13 23:46pm

Rajesh Kariyavula

Updated 14-Jul-13 18:11pm

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Ved Prakash Behera 11-Jul-13 6:40am

Even I am waiting to hear the answer ..

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demius · Answer 1 · 2013-07-11T01:00:00

Unfortunately, you have very little control over the SQL being generated by the ORM (in this case, NHibernate).

There's no easy way to improve performance, but a good place to start would be to run query analyzer and see what NHibernate is doing when you query it for data under different conditions. From there, you can start thinking about ways to modify your code to improve performance.

In my experience, ORM's are not suitable for applications where scalability is required for this very reason.