Microsoft KB Archive/834940

= System Monitor may display high values for the Output Queue Length performance counter in Windows 2000 =

Article ID: 834940

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 4
 * Microsoft Windows 2000 Professional Edition

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SYMPTOMS
You apply the 822226 hotfix to a multiprocessor computer that is running Microsoft Windows 2000 Server with Service Pack 4 (SP4). You then examine the value of the Network Interface object type's Output Queue Length performance counter in System Monitor. You use this value to monitor the Network Interface performance. The Output Queue Length performance counter may consistently show a random value that is greater than zero. This behavior may occur even when there is no network traffic.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
To apply this hotfix, you must have Windows 2000 Service Pack 4 (SP4) installed on your computer.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix replaces the 822226 hotfix.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version         Size    File name 12-Dec-2003 04:41  5.0.2195.6882  118,960  Afd.sys 20-Jan-2004 06:51  5.0.2195.6824  105,232  Msafd.dll 20-Jan-2004 06:14  5.0.2195.6891  318,672  Tcpip.sys 12-Dec-2003 04:38  5.0.2195.6882   16,240  Tdi.sys 20-Jan-2004 06:51  5.0.2195.6824   17,680  Wshtcpip.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
You can use the Network Interface object type's Output Queue Length performance counter to monitor the network adaptor and to query by using the Simple Network Management Protocol (SNMP).Typically, the value of Output Queue Length is not greater than zero. If the value of Output Queue Length does exceed zero, the value typically returns to zero quickly. A value that is greater than zero may indicate network delays. The Output Queue Length performance counter is maintained by using TCP/IP.

The Network Driver Interface Specification (NDIS) software implementation queues the SNMP query requests. Therefore, the Output Queue Length value is typically zero. However, in a symmetric multiprocessing (SMP) computer, the value may be greater than two in System Monitor or in a returned SNMP query.

For additional informationabout the 822226 hotfix, click the following article number to view the article in the Microsoft Knowledge Base:

822226 Output Queue Length performance counter value is not reliable on computers with symmetric multiprocessing (SMP) architecture

For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

For additional information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: hyperthreading multiproc dualproc SMP win2k win2000 Q822226 KB822226

Keywords: kbhotfixserver kbqfe kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB834940

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