Vista Network Performance Tweak
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Before I begin, let me apologize for my hiatus the past two weeks.
Many Vista users complain constantly about the network speeds. “XP used to copy so much faster,” I hear quite often. The network stack in Vista has actually been completely rebuilt from the ground up to be much quicker. However, Microsoft, in it’s infinite wisdom, decided to include an automatic tuning AI so that Vista slows you down when it feels it’s appropriate.
On low-end machines, these slowdowns of network performance can lead to an increase in overall performance, however, if you’ve got a high-performance system it only serves to slow you down. This autotuning can be disabled with a simple console command:
netsh int tcp set global autotuninglevel=disabled
Once you run the command, you’ll need to reboot your PC for the changes to the networking subsystems to take effect. I was getting speeds of 3-4MB/s when copying files (standard 100mbit networks handle up to approximately 12MB/s) before applying this tweak. Afterwards, my speeds have been between 7-10MB/s - a gigantic improvement. I’d estimate about a 50% performance boost for anyone who runs this command on a high-end system.
Additionally, I am currently developing a script known as “vTweak”. This script will perform numerous tweaks and changes to Vista to improve performance, an remove irritating features such as UAC. It will support user interaction, so that you can pick and choose on certain options that you may wish to forego. The script will also support a batch mode, so that the default options are all run, and if someone wished to customize the script for their own installations of Vista or other purposes, they would only have to remove the lines for funcitons they didn’t want. This script will be released in the following week or so as a beta, not yet supporting every tweak and feature I plan for it.
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