Mikael Abrahamsson wrote:
On Mon, 22 Oct 2007, Sam Stickland wrote:
Does anyone know if there are any plans by Microsoft to push this out
as a Windows XP update as well?
You can achieve the same thing by running a utility such as TCP
Optimizer.
http://www.speedguide.net/downloads.php
Turn on window scaling and increase the TCP window size to 1 meg or
so, and you should be good to go.
The "only" thing this changes for ISPs is that all of a sudden
increasing the latency by 30-50ms by buffering in a router that has a
link that is full, won't help much, end user machines will be able to
cope with that and still use the bw. So if you want to make the gamers
happy you might want to look into that WRED drop profile one more time
with this in mind if you're in the habit of congesting your core
regularily.
I've already hand adjusted the default TCP window size on my machine and
it noticably made quite a big difference my transfer rates from my own
tuned servers. From this little bit of evidence I can blazenly
extrpolate to suggest that maximum bandwidth consumption is currently
limited to some noticable degree by the lack of widely deployed TCP
window size tuning. Links that are currently uncongested might suddenly
see a sizable amount of extra traffic.
I'm concerned that if Microsoft were to post this as a patch to Windows
XP/2003 then we would see the effects of this "all at once", instead of
the gradual process of Vista deployment. Anyone agree?
Sam
