Q-Logic 3000 Windows Server 2003 Performance, Performance Testing the QLogic Adapter with ntttcp

7–Windows Server 2003, 2008, and 2008 R2 Driver Configuration Windows Server 2003 Performance

Windows Server 2003 Performance

This section describes Windows performance tuning.

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.

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 7-20for more information.

NE0154601-00 B 7-13