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POPerformance analyze ADO.NET and Entity Framework
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2013-02-27T09:06:03.697
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2017-10-05T08:13:27.640
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2013-02-27T09:23:34.310
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Which one gives better performance? ADO.NET or Entity Framework. These are the two method I want to analyze. ADO.NET Test Method <pre><code>public void ADOTest() { Stopwatch stopwatch = Stopwatch.StartNew(); using (SqlConnection con = new SqlConnection(connection)) { string Query = "select * from Product "; SqlDataAdapter da = new SqlDataAdapter(Query, con); DataSet ds = new DataSet(); con.Open(); da.Fill(ds); DataView dv = ds.Tables[0].DefaultView; } stopwatch.Stop(); Console.WriteLine("ADO.NET Time Elapsed={0}", stopwatch.Elapsed); } </code></pre> Entity Framework Test Method <pre><code>public void EFTest() { Stopwatch stopwatch = Stopwatch.StartNew(); var list = _OnlineStoreEntities.Products.ToList(); stopwatch.Stop(); Console.WriteLine("Entity Framework Elapsed={0}", stopwatch.Elapsed); } </code></pre> Result in first time execution When I ran this above method in more than 100 times. The average execution time is shown in the image: <img src="https://i.stack.imgur.com/8qjBc.jpg" alt="first result"> ADO.NET took only 2 milliseconds whether Entity Framework took more than 4 milliseconds. Result in second time execution When I ran this method again and again in single run. The average execution time between ADO.NET and EF is not much more: <img src="https://i.stack.imgur.com/lUEde.jpg" alt="second result"> Question <ol> <li>I think EF gives very worst performance in first time execution Then why we use EF?</li> <li>Why EF second time execution was faster than first time execution?</li> </ol>
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<c#><performance><entity-framework><ado.net>
Title
Performance analyze ADO.NET and Entity Framework
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