Six seconds warmup time for the first entity framework 6 nonquery

Question

From my integration test:

// Act
Stopwatch w = new Stopwatch();
w.Start();
userService.Create(userDTO);
w.Stop();


public void Create(UserDTO userDTO)
{
            


        

Answer 1

The time is not spent to insert a simple data. EF creates the model in the memory, that is where the time you spent goes.

EF creates Entity Data Model and executes View Generation(not db views) for the first time you do an operation on context. Have a look at this blog post.

Take a look here to improve the performance by using pre-generated views to decrease model load time.

To improve the performance you can initialize your context async when you start your application. Beware the multithreading issues.

using (var context = new MyContext())
{
    context.Database.Initialize(false);
}