Incorrect Settings for File System Performance Profiles (138012)


The information in this article applies to:

  • Microsoft Windows 95
This article was previously published under Q138012
IMPORTANT: This article contains information about editing the registry. Before you edit the registry, you should first make a backup copy of the registry files (System.dat and User.dat). Both are hidden files in the Windows folder.

SYMPTOMS

The performance of the file system on your computer is unchanged or degraded after you select Network Server or Mobile Or Docking System in the Typical Role Of This Machine box in the File System Properties dialog box.

CAUSE

The NameCache and PathCache values are written to the registry incorrectly for the Network Server and Mobile Or Docking System profiles. The data for NameCache is written to the PathCache value, and the data for PathCache is written to the NameCache value.

RESOLUTION

NOTE: For information about how to edit the registry, view the Changing Keys And Values online Help topic in Registry Editor (Regedit.exe). Note that you should make a backup copy of the registry files (System.dat and User.dat) before you edit the registry.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows 95. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

Modify the NameCache and PathCache values in the following registry key: 
   Hkey_Local_Machine\Software\Microsoft\Windows\CurrentVersion\FS
   Templates
NOTE: The value data for these settings is in hexadecimal format.

For the Mobile Or Docking System profile, use the following data: 
   Value name   Value data
   ------------------------
   NameCache    51 01 00 00
   PathCache    10 00 00 00
For the Network Server profile, use the following data: 
   Value name   Value data
   ------------------------
   NameCache    a9 0a 00 00
   PathCache    40 00 00 00

STATUS

Microsoft has confirmed this to be a problem in Microsoft Windows 95 and Microsoft Windows 95 OEM Service Release version 1.

This problem has been corrected in Windows 95 OEM Service Release version 2.

MORE INFORMATION

After you modify the registry settings, use the following procedure to optimize your file system performance:
  1. In Control Panel, double-click the System icon.
  2. On the Performance tab, click File System.
  3. In the Typical Role Of This Machine box, click the most common role for your computer, and then click OK.
The default profile (Desktop Computer) does not use the NameCache or PathCache values in the registry. Instead, the file system defaults are used.

NOTE: The profile values for NameCache and PathCache listed in the "Microsoft Windows 95 Resource Kit" (page 566) are correct; however, they are listed in decimal format. For the Desktop Computer profile, the default value for NameCache is a5 02 00 00, and the default value for PathCache is 20 00 00 00.

REFERENCES

For additional information about optimizing file system performance, please see the "Microsoft Windows 95 Resource Kit," pages 565-567, "Optimizing File System Performance with Profiles."
Modification Type:MajorLast Reviewed:7/28/2001
Keywords:kbDiskMemory KB138012
©2002 Microsoft Corporation. All rights reserved.