Is the first persistance of an Entity Data Model in EF 4.0 slower due to the connection cost ?

Posted by Scott Davies on Stack Overflow See other posts from Stack Overflow or by Scott Davies
Published on 2010-04-09T15:31:26Z Indexed on 2010/04/09 15:33 UTC
Read the original article Hit count: 313

Filed under:

entity-framework-4

|

benchmarking

|

c#4.0

Hi,

I've got a console app written that persists an object graph via Entity Framework 4.0. I loop through this to dump the execution times for each persistance. The first persistance is always the largest. Is this due to EF making the initial connection to the database and/or JIT'ing ?

Here's a sample of the output:

Persisted graph in **3318** millseconds.
Persisted graph in 25 millseconds.
Persisted graph in 26 millseconds. 
Persisted graph in 22 millseconds.

Thanks,

Scott

© Stack Overflow or respective owner

Related posts about entity-framework-4

Differences Between NHibernate and Entity Framework

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Introduction NHibernate and Entity Framework are two of the most popular O/RM frameworks on the .NET world. Although they share some functionality, there are some aspects on which they are quite different. This post will describe this differences and will hopefully help you get started with the one… >>> More
Entity Framework & Binding syncronisation

as seen on Stack Overflow - Search for 'Stack Overflow'
* EDIT * Sorry, I should make it clearer. Imagine I have an entity: public class MyObject { public string Name { get; set; } } And I have a ListBox: <ListBox x:Name="lbParts"> <ListBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding Name}"/> … >>> More
Joins and UI Binding with the Entity Framework

as seen on Internet.com - Search for 'Internet.com'
Learn how to build queries with the Entity Framework that involve multiple tables as well as binding in the UI with the EntityDataSource. >>> More
Frederick .NET User Group April 2010 Meeting

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
FredNUG is pleased to announce that we have an excellent speaker lined up for April. On April 20th, we’ll start with pizza and social networking at 6:30 PM. Then, starting at 7 PM, Dane Morgridge will present “Getting Started with Entity Framework 4” The scheduled agenda is: 6:30 PM - 7:00… >>> More
[News] NHibernate vs MS Entity Framework

as seen on Dot Net Guru - Search for 'Dot Net Guru'
Voil? une question qui se posera de plus en plus avec la sortie prochaine de .NET V4 et Entity Framework V4, l'outil de mapping objet/relationnel de Microsoft. M?me s'il est vrai que l'opinion de Ayende peut para?tre biais?e du fait qu'il est contributeur NHibernate, son point de vue et surtout ses… >>> More

Related posts about benchmarking

How to run benchmarking on MySQL?

as seen on Stack Overflow - Search for 'Stack Overflow'
My server has installed MySQL Server 5.1. I would like to run benchmarking on the MySQL, but I couldn't found sql-bench, which is Benchmark Suite provided by MySQL. The MySQL Benchmark Suite seem like complicated to be install or setup into my server. I need one can be direct setup to test the benchmark… >>> More
Codeigniter benchmarking, where are these ms coming from?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm in the process of benchmarking my website. class Home extends Controller { function Home() { parent::Controller(); $this->benchmark->mark('Constructor_start'); $this->output->enable_profiler(TRUE); $this->load->library ('MasterPage'); … >>> More
Benchmarking PHP page load times

as seen on Stack Overflow - Search for 'Stack Overflow'
How could I measure the time taken to load a page (with various different PHP statements)? Somewhat like the stats available here - http://talks.php.net/show/drupal08/24 >>> More
Graph representation benchmarking

as seen on Stack Overflow - Search for 'Stack Overflow'
Currently am developing a program that solves (if possible) any given labyrinth of dimensions from 3X4 to 26x30. I represent the graph using both adj matrix (sparse) and adj list. I would like to know how to output the total time taken by the DFS to find the solution using one and then the other method… >>> More
Database Trends & Applications column: Database Benchmarking from A to Z

as seen on SQL Blog - Search for 'SQL Blog'
Have you heard of the monthly print and web magazine Database Trends & Applications (DBTA)? Did you know I'm the regular columnist covering SQL Server ? For the past six months, I've been writing a series of articles about database benchmarking culminating in the latest article discussing my three… >>> More