"Registry Value Largesystemcache Is Currently Set..." On R4 Nt Server

"Registry Value LargeSystemCache is Currently Set..." on R4 NT Server Problem: A customer starts a Notes 4.0 server running on a Windows NT 4.0 platform and the following informational messages are displayed on the server console and in the log file: Informational: The registry value HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache is currently set to 1. For better server performance,...

change the setting to 0. Informational: The registry value HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PriorityControl\Win32Priorit ySeparation is currently set to 2. For better server performance, change the setting to 0. Solution: These messages are essentially asking for "LargeSystemCache" and "Win32PrioritySeparation" settings to be changed in the Registry. These changes can be made by using the Registry Editor (REGEDT32.EXE found in the WINNT35\SYSTEM32 directory). These changes can also be made by using the Graphical User Interface (GUI). To change the LargeSystemCache setting: 1. Open the Control Panel and open Network. 2. From the list of Installed Network Software, choose Server and then click Configure. This opens the Server Optimization settings dialog box. 3. Select "Maximize Throughput for Network Applications." This setting changes the Registry value to zero. By default, "Maximize Throughput for File Sharing" is selected, and yields a Registry value of one. This would result in memory being allocated for an unlimited number of connections. By selecting "Maximize Throughput for Network Applications", memory is again allocated for an unlimited number of connections, but less memory is set aside for cache. "Minimize Memory Used" accepts up to ten connections and "Balance" allows for 64 connections. To change the Win32PrioritySeparation setting: 1. Open the Control Panel and open System. 2. Select the Tasking button to open the Tasking dialog box. 3. Select "Foreground and Background Applications Equally Responsive." This option changes the Registry value to zero. By default, "Best Foreground Application Response Time" is selected, and yields a Registry value of two. This would result in any window having a priority two levels higher the Notes Server window if the Notes Server window were in the background. For instance, any time the client on the server was being utilized, the Notes Server would suffer a performance degradation. The amount of degradation would be linked to what application was in the foreground. Similarly, if "Foreground Application More Responsive than Background" is selected (Registry value of one), any window would receive a priority one level higher than the Notes Server window if the Notes Server window were in the background.

This was first published in November 2000

Dig deeper on Domino Resources - Part 2

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