Hi, We have MS 2008 servers , In Performance options , Adjust for best performance of "Background services" is selected. When i go to HKLM/system/currentcontrolseet/control/prioritycontrol value is zero When i again select "Background services" and click apply i can see value 24 in registry. Am i looking at right registry ? When the registry value is Zero that means system was not set to perform best to background services? Is this the way it works or any bug patch is there to fix this?

There are 2 settings you can choose : Adjust for best performance of Programs or Adjust for best performance of Background Services. All this does is change the DWORD value of Win32PrioritySeparation under this registry hive: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PriorityControl Set Win32PrioritySeparation to 0x26 (decimal 38) for Programs. Set Win32PrioritySeparation to 0x18 (decimal 24) for Background Services. ====== http://www.msfn.org/board/topic/31999-adjust-for-best-performance-through-command-line/ http://technet.microsoft.com/library/Cc976120 http://www.win2008workstation.com/forum/viewtopic.php?f=2&t=713Sachin Gadhave MCP, MCSA, MCTS

Thanks Sachin for reply, But my question is even thought i have selcted for Bacground services , registry entry was zero. When i selcted radio button again value came to registry. When it was zero , does it mean it was not set to background services?

Yes, If the value was set to 0 then that means that the Foreground and background applications equally responsive. I tested it in my LAB. on my system default value was set to 2 and when changed to Background services registry value changed decimal 24. Sometime it may happen that the settings you configure via GUI doesn't take effect properly thus registry can edited directly. If you have value 24 in registry then your system is optimized for Background Services. No need to worry then. Look at this section below from- http://support.microsoft.com/kb/102987 ======================================================== PriorityControl Entries The PriorityControl key defines the foreground/background priority boost differential. Change this value by choosing the Tasking button in the System dialog box in Control Panel. Values are stored under this Registry path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PriorityControl Win32PrioritySeparation REG_DWORD 0, 1, or 2 Default: 0x2 Specifies the priority to give to the application running in the forground. This application receives more process or time relative to other applications running in the background. The values here correlate to the following options in the Tasking dialog box: Value Meaning 0 Foreground and background applications equally responsive 1 Foreground application more reponsive than background 2 Best foreground application response time ======================================================== Cheers!Sachin Gadhave MCP, MCSA, MCTS

Thanks Sachin