Entity Framework Performance Issue

Question

I am running into an interesting performance issue with Entity Framework. I am using Code First.

Here is the structure of my entities:

A Book can have many Revie

Answer 1

I know this sounds lame, but have you tried the other way around, e.g.:

var reviewsAndBooks = db.Reviews.Where(r => r.Book.BookId == id)
                       .Include(r => r.Book);

I have noticed sometimes better performance from EF when you approach your queries this way (but I haven't had the time to figure out why).