Microsoft KB Archive/300607

= FIX: Network Interface Bottleneck on Large SMP Systems =

Article ID: 300607

Article Last Modified on 10/3/2003

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APPLIES TO


 * Microsoft SQL Server 2000 Standard Edition

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This article was previously published under Q300607



BUG #: 351107 (SHILOH_BUGS)



SYMPTOMS
Under extremely high I/O volume on very fast multiple-CPU systems, SQL Server may not be able to process I/O as quickly as the underlying system. In addition, thread switching may also lead to high CPU utilization.



CAUSE
There is a single reader thread for network I/O.



RESOLUTION
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

290211 INF: How to Obtain the Latest SQL Server 2000 Service Pack



STATUS
Microsoft has confirmed that this is a problem in SQL Server 2000. This problem was first corrected in SQL Server 2000 Service Pack 1.



MORE INFORMATION
For SQL Server 2000 Service Pack 1, multiple network readers are implemented that directly interface with VIA, which reduces thread switching and IPC.

Keywords: kbbug kbfix kbsqlserv2000sp1fix KB300607

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