Technical Tips

Real Time eXecutives, Inc.

Technical Tips


Tuning NT Workstation as RTXHDB Server

 

When using NT Workstation, as the RTXHDB Server, users should tune the NT Workstation as described below. NT Workstation and NT Server have vastly different performance characteristics due to the internal tuning that the NT operating system, which is identical on both, performs. Most tuning parameters are inaccessible, but a few are located in the Registry. If you are running Server and you double-click on the Server entry of the Services tab in the Control Panel's Network applet, you will get a dialog that lets you determine what type of application you want the machine to be tuned for. Choices let you select between "Minimize Memory Used", "Balance", "Maximize Usage for File Sharing", and "Maximize Usage for Network Applications". This dialog box is not presented on Workstation installations. The various selections actually change the values of two Registry values:

HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache

and

HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size

This table (which was derived from sessions with Regmon) presents the settings you should select on a Workstation to achieve the same effect you would get using the dialog box were your system a Server.

Tuning Target

LargeSystemCache

Size

Minimize Memory Used

0

1

Balance

0

2

File Sharing

1

3

Network Applications

0

3

 


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