You administer a Microsoft SQL Server 2012 Enterprise Edition server that uses 64 cores.
You discover performance issues when large amounts of data are written to tables under heavy system load.
You need to limit the number of cores that handle I/O.
What should you configure?
A.
Processor affinity
B.
Lightweight pooling
C.
Max worker threads
D.
I/O affinity
Explanation:
The affinity Input-Output (I/O) mask Server Configuration Option.
To carry out multitasking, Microsoft Windows 2000 and Windows Server 2003 sometimes move process
threads among different processors. Although efficient from an operating system point of view, this activity can
reduce Microsoft SQL Server performance under heavy system loads, as each processor cache is repeatedly
reloaded with data. Assigning processors to specific threads can improve performance under these conditions
by eliminating processor reloads; such an association between a thread and a processor is called processoraffinity.http://msdn.microsoft.com/en-us/library/ms189629.aspx