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How can I increase the number of threads/concurrent requests per working process on IIS7?
I don't want to increase the number of processes to create a web garden (for now).
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To change how the IIS thread pool works, and how many threads it provides for your workload, you can modify a number of registry values under the registry key HKLM\System\CurrentControlSet\Services\InetInfo\Parameters. The configured maximum number of threads (per processor) in the IIS thread pool.
Has a maximum of 10 concurrent connections before an HTTP 403.9 error message is returned. HTTP 403.9 returns Access Forbidden: Too many users are connected.
Click to expand Limits Properties under Behavior, click Threads Per Processor Limit, enter the desired value for Threads Per Processor Limit and click Apply in the Actions pane.
I found it:
<system.web>
<applicationPool maxConcurrentRequestsPerCPU="12" maxConcurrentThreadsPerCPU="0" requestQueueLimit="5000"/>
</system.web>
http://blogs.msdn.com/tmarq/archive/2007/07/21/asp-net-thread-usage-on-iis-7-0-and-6-0.aspx http://msdn.microsoft.com/en-us/library/dd560842(VS.100).aspx
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Check out http://iistuner.codeplex.com/ it solved all of our problems regarding setting these numbers. It basically fixes all wierd and hard to find settings with one click.
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