Why would SQL be very slow when doing updates?

Posted by ooo on Stack Overflow See other posts from Stack Overflow or by ooo
Published on 2010-12-14T14:39:38Z Indexed on 2010/12/25 15:54 UTC
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Filed under:

c#

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sql-server

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fluent-nhibernate

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performance-tuning

Suddenly doing updates into a few tables have gotten 10 times slower than they used to be. What are some good recommendations to determine root cause and optimization? Could it be that indexing certain columns are causing updates to be slow? Any other recommendations?

I guess more important than guesses would be help on the process of identifying the root cause or metrics around performance.

Is there anything in Fluent NHibernate that you can use to help identify the root cause of performance issues?

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