Microsoft KB Archive/123976

= Sequential File Reads of 4K Instead of 64K Blocks =

Article ID: 123976

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Server 3.5

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This article was previously published under Q123976



SYMPTOMS
In Windows NT, sequential reads from a large file should be in blocks of 64K. Under certain circumstances, Windows NT incorrectly reads in 4K blocks (on the ALPHA platform it is 8K) and performance is reduced.



STATUS
Microsoft has confirmed this to be a problem in Windows NT Workstation and Windows NT Server version 3.5. This problem was corrected in the latest U.S. Service Pack for Windows NT version 3.5. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

  S E R V P A C K

Additional query words: prodnt

Keywords: KB123976

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