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SAS Companion for the Microsoft Windows Environment

Windows Features that Optimize Performance


Under Windows NT

If you are using SAS under Windows NT, you can control the relative responsiveness of your SAS session by altering the application performance level. This can be done by

  1. selecting

    START
    [arrow]
    Settings
    [arrow]
    Control Panel
    which displays Control Panel window.

  2. clicking on the System icon within the Control Panel window. This displays the System Properties window.

  3. selecting the [Performance] tab within the System Properties window.

  4. drag the Boost arrow to alter the performance response time for the foreground application.

To optimize the Windows NT performance, alter the application performance boost using these guidelines:

To analyze the performance of your SAS applications, you can specify SAS performance counters within the NT Performance Monitor. For more on using NT Performance Monitor, see Overview.

If your PC has multiple processors, SAS takes advantage of symmetric multiprocessing (SMP) with Version 7 I/O enhancements. Larger amounts of read-ahead processing is done for procedures that have large amounts of sequential data access on data stored on Windows NT Server. This occurs more on system with extra processing power to service NT and it's disk cache.

The following is generally true in multi-processing SMP environments:


Under Windows

Ensure that Windows is configured for optimal performance:

  1. With the right mouse button, click on the My Computer icon on the desktop, and select Properties....

  2. Select the Performance tab. The performance status should report that your system is configured for optimal performance. If it is not, use the Advanced Settings to adjust the configuration accordingly.


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