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Entity Framwork and how to solve poor performance on large read-only batches

Olaf Monien – ORMs such as Entity Framework are great – as long as you don’t forget that there is quite a complex engine under the shiny hood. I just ran into the situation that EF performed extremely poor while processing large sets of data. It even threw exceptions that indicated that my underlying connection or data reader just closed for no reason. I a query similar to the one below in a fairly complex batch processing application. Of course you should avoid unlimited select statements on large datasets, but life is not always perfect In this particular case I was iterating about 190k data ...
Favorite? Off-Topic? Olaf Monien @ 2013-05-01 17:39


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