Reporting Service : Memory Configuration Settings

http://msdn.microsoft.com/en-us/library/ms159206.aspx

Configure Available Memory for Report Server Applications

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Example of Memory Configuration Settings

The following example shows the configuration settings for a report server computer that uses custom memory configuration values. If you want to add WorkingSetMaximum or WorkingSetMinimum, you must type the elements and values in the RSReportServer.config file. Both values are integers that express kilobytes of RAM you are allocating to the server applications. The following example specifies that total memory allocation for the report server applications cannot exceed 4 gigabytes. If the default value for WorkingSetMinimum (60% of WorkingSetMaximum) is acceptable, you can omit it and specify just WorkingSetMaximum in the RSReportServer.config file. This example includes WorkingSetMinimum to show how it would appear if you wanted to add it:

      <MemorySafetyMargin>80</MemorySafetyMargin>
      <MemoryThreshold>90</MemoryThreshold>
      <WorkingSetMaximum>4000000</WorkingSetMaximum>
      <WorkingSetMinimum>2400000</WorkingSetMinimum>

About ASP.NET Memory Configuration Settings

Although the Report Server Web service and Report Manager are ASP.NET applications, neither application responds to memory configuration settings that you specify in the processModel section of machine.config for ASP.NET applications that run in IIS 5.0 compatibility mode. Reporting Services reads memory configuration settings from the RSReportServer.config file only.