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Configure ASP.NET ProcessModel

According to this MSDN documentation for ProcessModel, autoConfig = true sets the following attributes according to this KB :

maxWorkerThreads, maxIoThreads, minFreeThreads, minLocalRequestFreeThreads, maxConnection

To test this parameter, I have an example web application in ASP.NET 3.5 having the following code in the page_load event:

        int w, c;

        ThreadPool.GetMinThreads(out w, out c);

        // Write the numbers of minimum threads
        Response.Write("Min: " + string.Format("{0}, {1}", w, c));

        w=0;
        c = 0;

        ThreadPool.GetMaxThreads(out w, out c);

        Response.Write(" Max: " + string.Format("{0}, {1}", w, c));

        Response.Write(" Maxconnections: " + ServicePointManager.DefaultConnectionLimit);

        Configuration conf = ConfigurationManager.OpenMachineConfiguration();
        ConfigurationSectionGroup secGrp = conf.SectionGroups["system.web"];
        ConfigurationSection sec = secGrp.Sections["httpRuntime"];
        Response.Write(" httpruntime settings: " + sec.ElementInformation.Properties["minFreeThreads"].Value + ", " +
                                                    sec.ElementInformation.Properties["minLocalRequestFreeThreads"].Value);

        Response.Flush();

I get the following output when I run the autoConfig auto-tuning page and then set to true:

autoConfig = false: Min: 2, 2 Max: 40, 40 Maxconnections: 10 httpruntime settings: 8, 4

autoConfig = true: Min: 2, 2 Max: 200, 200 Maxconnections: 24 httpruntime settings: 8, 4

autoConfig = false , , , , true, :

  • maxWorkerThreads maxIoThreads , , 200 (100x2 ).
  • , , minWorkerThreads, KB : minWorkerThreads = maxWorkerThreads/2
  • , MSDN autoConfig = true minFreeThreads minLocalRequestFreeThreads , , . 8 4.

, , ? - ?

+5
1

, :

WCF 4: WCF

WCF 4 , . :

. MaxConcurrentSessions: 100 * ProcessorCount

. MaxConcurrentCalls: 16 * ProcessorCount

. MaxConcurrentInstances: - , , .

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