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7–Windows Server 2003, 2008, and 2008 R2 Driver Configuration
Windows Server 2003 Performance
NE0154601-00 C 7-13
Windows Server 2003 Performance
This section describes Windows performance tuning.
Performance Testing the QLogic Adapter with ntttcp
To enhance Windows Server performance, change these parameters in the order
listed.
1. Enable Windows Server scaling (for Windows Server 2003).
Set the TCp1323Opts parameter value to 1. Note that this parameter is not
created by default. For more information about modifying a previously
created parameter, or creating a new parameter, see “Tcp1323Opts
Parameter” on page 7-16.
2. Set the TcpWindowSize parameter (for Windows Server 2003).
In the TcpWindowSize parameter window, set the value in the Value Data
box to either 200000 hexadecimal, or 2,097,152 decimal. Be sure to click
either hexadecimal or decimal in the Base box depending on the value
entered.
If the TcpWindowSize parameter does not exist, it can be created using
regedit. See “Setting the TcpWindowSize Parameter” on page 7-20 for
more information.
NOTE:
The tunable performance parameters are system and application specific.
Understanding the relationship between the parameter values, target
workload, performance applications, operating system, and system
configuration provides a better understanding of performance optimization
and bottlenecks.