Exponentially deteriorating performance on inserts in SQL Server Compact 4.0 tables with an Identity column

Question

EDIT: the issue below has been fixed in the Entity Framework 6.

Running the code below takes a disappointing 2 minutes and 10 seconds. Running it a second time takes

Answer 1

I found the issue, it is caused by the statement to get the generated id causing table scans, I propose a fix here, tested with 4000 entities, down from 17 secs to 2 secs. http://entityframework.codeplex.com/workitem/857 - it will be include in the EF6 build after Alpha 3