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Q274051: INFO: Anti-Virus Software May Impact VSS Performance

Article: Q274051
Product(s): Microsoft SourceSafe
Version(s): 4.0,4.0a,5.0,6.0
Operating System(s): 
Keyword(s): kbSSafe400 kbSSafe500 kbSSafe600 _IK kbGrpDSSSafe
Last Modified: 01-MAY-2001

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The information in this article applies to:

- Microsoft Visual SourceSafe for Windows, versions 4.0, 4.0a, 5.0, 6.0 
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SUMMARY
=======

With the increased concerns over viruses spreading over the Internet and through
e-mail, many anti-virus software companies have implemented a feature that scans
every file every time that the file is opened. This feature can have a dramatic
impact on Visual SourceSafe (VSS) performance. This feature is sometimes
referred to as Auto-Protect or Auto-Scan.

MORE INFORMATION
================

Because Visual SourceSafe is made up of many small file pairs, when you do a
branch or other large scale Visual SourceSafe operation, the Auto-Scan feature
can have a dramatic effect on performance. In one case, a branch performed on a
VSS project with this feature enabled took eight hours; with the feature
disabled, it took 20 minutes.

This feature can have such a dramatic effect because the operations are happening
across the network and are affected by network performance. At the same time,
they are also affecting other users' network performance.

Many of the anti-virus software companies allow you to configure what file types
are scanned with these features.

Microsoft Visual SourceSafe support recommends that you enable virus checking
without the Auto-Scan option on the Visual SourceSafe server, and only do a full
scan of the files on the SourceSafe server periodically.

Additional query words: slow performance

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Keywords          : kbSSafe400 kbSSafe500 kbSSafe600 _IK kbGrpDSSSafe 
Technology        : kbSSafeSearch kbAudDeveloper kbSSafe600 kbSSafe400 kbSSafe400a kbSSafe500
Version           : :4.0,4.0a,5.0,6.0
Issue type        : kbinfo

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