IBM SPSS Data Collection Installation Manual page 95

In the <system.web> section, add the following settings or edit your existing settings so that they
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contain the designated properties and values.
<system.web>
<httpRuntime minFreeThreads="88" minLocalRequestFreeThreads="76" appRequestQueueLimit="1000"/>
<processModel autoConfig="false" maxWorkerThreads="100" maxIoThreads="100"/>
</system.web>
Save your changes and close the file.
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For more detailed information about this change, refer to pages 818 and 819 of
http://download.microsoft.com/download/a/7/e/a7ea6fd9-2f56-439e-a8de-024c968f26d1/ScaleNet.pdf
(http://download.microsoft.com/download/a/7/e/a7ea6fd9-2f56-439e-a8de-024c968f26d1/ScaleNet.pdf).
Changing thread configuration settings for the .NET framework
This topic applies only to sites that run telephone interviews.
When a telephone interviewer requests a number to call, the Phone activity requests one from the
sample management system. If the system does not have enough resources allocated for dealing
with these requests, the requests will be queued and interviewers will have to wait longer than
necessary to receive numbers. You can reduce the likelihood that this will happen by increasing
the resources available for processing requests.
Make the following changes on each machine running the Phone Participants activity or the
Interviewing Service
For machines running the Interviewing Service
From the Windows Start menu, choose Run.
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In the Run dialog box, type
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Step down through the hierarchy to
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\HKEY_LOCAL_MACHINE\Software\SPSS\mrInterview\3\Interviewing.
Right-click in the right-hand frame, select New, DWORD value, and enter
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as the value name.
Right-click this new entry and select Modify.
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In the Edit DWORD Value dialog box, type
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to save your changes.
OK
Note: You do not need to set this value if the server has eight or more logical processors.
E Close Registry Editor.
For machines running the Phone Participants activity or the Interviewing Service
Navigate to C:\Windows\Microsoft.Net\Framework\v3.5\CONFIG and open machine.config.
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In the <system.web> section, add the following settings or edit your existing settings so that they
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contain the designated properties and values.
IBM SPSS Data Collection Interviewer Server installation information
and click .
regedit
OK
as the value and choose
200
87
DefaultThreadPoolSize
as the base. Click
Decimal