Microsoft KB Archive/203052

= Poor Program and Service Performance During Crash Dump Transfer =

Article ID: 203052

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition, when used with:
 * the hardware: Intel x86
 * Microsoft Windows NT Server 4.0 Enterprise Edition, when used with:
 * the hardware: Intel x86

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This article was previously published under Q203052



SYMPTOMS
If a server stops responding (hangs) with a blue screen, the Savedump.exe process transfers the crash dump from the paging file to the Memory.dmp file during the next system startup. Other programs and services that are started during this process may perform poorly. If the server is providing services to users, those services may not provide timely responses to client requests.



CAUSE
This behavior can occur when the system is approaching an I/O-bound state while it is accessing disk resources. Paging file resources in particular may be exhausted because the paging file is used to transfer the crash dump to the Memory.dmp file.



RESOLUTION
To work around this behavior, configure a larger paging file to make sure that there is adequate space for the transfer to take place efficiently. Or, you may want to add additional drive and controller resources for the paging file to transfer the crash dump to the Memory.dmp file.



STATUS
This behavior is by design.



MORE INFORMATION
If you run Perfmon during this process, you may observe that the "%DiskTime" and "%Pagefile" values approach 100 percent while the Savedump process is running. The "Disk Queue length" and "Disk Transfers/sec" values also rise significantly. When the Savedump process finishes, the following event is logged in the System event log:

Savedump, 1001: The computer has rebooted from a bugcheck...

Also, Savedump.exe is listed on the Processes tab in Task Manager during the transfer.

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

192463 Gathering Blue Screen Information After Memory Dump

Keywords: kbenv kbprb KB203052

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