Display Data Prioritization Setting in Windows 2008 Terminal Services
Daniel Petri recently wrote an article explaining display data prioritization in Microsoft Windows Server 2008 Terminal Services. Daniel writes “Display Data Prioritization in Windows Server 2008 Terminal Services allows for automatic control over the virtual channel traffic that is passed between the client and the server. This enables better performance and user experience because display, keyboard typing, and mouse movement data is given a higher priority over other virtual channel traffic, such as printing, clipboard operations or file transfers. This prioritization is designed to ensure that your screen performance (user experience) is not affected by bandwidth intensive actions, such as large print jobs.”
By default the prioritization ratio is 70:30 - meaning 70% of the available bandwidth is prioritized for display, while the everything else has to fight for the remaining 30%. If you feel that this ration isn’t right for your environment, you can tweak the following registry key:
HKLM\SYSTEM\CurrentControlSet\Services\TermDD
Valid values are:
- FlowControlDisable
- FlowControlDisplayBandwidth
- FlowControlChannelBandwidth
- FlowControlChargePostCompression
Technorati : Bandwidth, Display Settings, Longhorn, Registry Tweak, Terminal Services, Windows Server 2008
Del.icio.us : Bandwidth, Display Settings, Longhorn, Registry Tweak, Terminal Services, Windows Server 2008
Ice Rocket : Bandwidth, Display Settings, Longhorn, Registry Tweak, Terminal Services, Windows Server 2008
