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Application memory tuning

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Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

Application memory tuning

With application memory tuning, also known as 4-gigabyte tuning (4GT), memory-intensive applications running on Windows Server 2003, Enterprise Edition, or Windows Server 2003, Datacenter Edition, can use up to 50 percent more virtual memory. This capability is intended for applications that run on powerful computers with 2 to 4 gigabytes (GB) of physical RAM and that can take advantage of a larger virtual address space. The application must also be configured to use application memory tuning.

Application memory tuning makes more of the computer's virtual memory available to applications by making less virtual memory available to the operating system. Applications can use this feature to address 3 GB of virtual memory instead of the 2 GB normally allocated to each application process.

For more information, see Enabling application memory tuning support in your applications.

Note

  • This topic does not apply to Windows Server 2003, Web Edition.