QoS Bandwidth Reserve Setting
By default, Windows XP reserves 20% of the connection bandwidth for QoS traffic. This tweak allows the setting to be altered to a different percentage of connection bandwidth. If the system uses more than a single adapter for network connections, each adapter may be set individually by navigating to:
[Start] [Run] [Regedit]
Registry Key: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched
Modify/Create the Value Data Type(s) and Value Name(s) as detailed below.
Data Type: DWORD Value // Value Name: NonBestEffortLimit
Setting for Value Data: [Enter as a Percentage / Default Value = 20]
Exit Registry and Reboot
For a better understanding of QoS, see the link listed below. There have been a number of articles/tweaks published that contain misleading information about performance gains that can be obtained through QoS manipulation. The article below contains the following section:
Correcting Some Incorrect Claims About Windows XP QoS Support
There have been claims in various published technical articles and newsgroup postings that Windows XP always reserves 20 percent of the available bandwidth for QoS. These claims are incorrect. The information in the Clarification about QoS in End Computers That Are Running Windows XP section of this article correctly describes the behavior of Windows XP systems.
For many months now I ve been posting a reminder about Patch Tuesday or Second Tuesday as it has come to be known when Microsoft releases the latest round of updates for Windows XP and other products.
As always, I strongly suggest you read about any update prior to installation, especially updates carrying a less than Critical rating, and have a current system and data backup available in case it s necessary to restore the system to a pre-patch condition.
The Elder Geek sites contain many articles and suggestions for modifying the Windows operating system. I’ve tried these tweaks and tips on many systems. Sometimes they work, sometimes not. The point is, ensure you have a current, tested backup of all system and data files and understand how to restore the system in case something goes very wrong. You can still yell at me, but I assume no responsibility for your actions and use of the information and disclaim any legal responsibility for any consequences of such actions.
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