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Microsoft® SQL Server 2008 R2 Unleashed
book

Microsoft® SQL Server 2008 R2 Unleashed

by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
September 2010
Intermediate to advanced content levelIntermediate to advanced
1704 pages
111h 8m
English
Sams
Content preview from Microsoft® SQL Server 2008 R2 Unleashed

affinity I/O mask

Type: Advanced option; requires a reboot of SQL Server to take effect

Default value: 0

In Windows Servers, multitasking sometimes requires that process threads move among different processors. This type of movement of processing threads can reduce Microsoft SQL Server performance under heavy system loads because each processor cache is repeatedly reloaded with data. Assigning processors to specific threads can improve performance by eliminating processor reloads; such an association between a thread and a processor is called processor affinity. SQL Server 2008 supports processor affinity by means of two affinity mask options: affinity mask (to deal with the processor affinity needs) and affinity I/O mask (to address I/O-related ...

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Publisher Resources

ISBN: 9780768696585Purchase book