Microsoft KB Archive/884895

= FIX: On multiple-processor computers, garbage collection takes longer than expected in the .NET Framework 1.1 Service Pack 1 =

Article ID: 884895

Article Last Modified on 12/3/2007

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APPLIES TO


 * Microsoft .NET Framework 1.1
 * Microsoft .NET Framework 1.1 Service Pack 1

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SYMPTOMS
On a multiple-processor computer that has the Microsoft .NET Framework 1.1 Service Pack 1 (SP1) installed, you may notice that the garbage collection operation takes longer than expected.



CAUSE
This problem occurs when heaps become imbalanced. On multiple-processor computers, one heap is created for each processor. The heaps are imbalanced if there is a large difference in the number of objects from one heap to another heap. When the heaps are imbalanced, garbage collection takes longer to be completed.

Garbage collection is performed by multiple threads. However, garbage collection is a lock-step process, and the total time that it takes to complete the whole process is the time that is taken by the slowest thread to be completed.



Software update information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next .NET Framework 1.1 service pack that contains this hotfix.

To resolve this problem immediately, 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
Microsoft .NET Framework 1.1 SP1

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

Software update replacement information
This software update does not replace any other software updates.

File information
The English version of this software update 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 - 14-Oct-2004  02:30  1.1.4322.2038  2,138,112 Mscorlib.dll 14-Oct-2004 02:30  1.1.4322.2038  2,514,944 Mscorsvr.dll 14-Oct-2004 02:30  1.1.4322.2038  2,506,752 Mscorwks.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
For additional information, 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: GC

Keywords: kbbug kbfix kbhotfixserver kbqfe KB884895

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