private static TimeSpan SlowDelete() { using (EntitiesModel context = new EntitiesModel()) { Stopwatch watch = new Stopwatch(); var customersToRemove = from product in context.Products where (product.ProductID > 80) select product; watch.Start(); context.Delete(customersToRemove); //context.Delete(context.Products.Where(p => p.ProductID % 7 == 2 && p.ProductID > 80)); context.SaveChanges(); watch.Stop(); return watch.Elapsed; } }