Sequential File Reads of 4K Instead of 64K Blocks

 Last reviewed: February 24, 1995
Article ID: Q123976
The information in this article applies to:
  • Microsoft Windows NT Workstation version 3.5
  • Microsoft Windows NT Server version 3.5

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

KBCategory: kbother kbbug3.50 kbfix3.50.sp2
KBSubcategory: ntfilesys
Additional reference words: prodnt 3.50

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Last reviewed: February 24, 1995
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