Settings to optimize upload speed?

Gustavus

Golden Member
Oct 9, 1999
1,840
0
0
I know this sounds like one of those questions to which there is no answer, but I have evidence there is. My machine runs Windows XP with SP3. My ISP is Comcast and I have exceptional download speeds.

http://a.imagehost.org/0600/8-27-2009_11-16-59_AM.jpg

is a typical test result from just a few minutes ago -- during peak load time I might add. The upload is always in the vicinity of 1550 Kbps. Other people in my general area report much higher upload speeds -- but no where near as good download speeds.

Download speeds are more important to me than upload speeds, but it would be nice if I could do better. Recently I tried a software -- Network Optimizer I believe was its name -- and after running it the upload speed measured consistently in the vicinity of 1850 Kbps. In other words the tweakings it did to the network settings increased the upload speed by roughly 20%. Unfortunately, the changes lowered the download speed by over 20%. Both of these measurements were made many times, at different times of the day etc. Naturally I restored the system to its old -- present -- configuration.

So I know a 20% increase in upload speed is possible. The question is whether it may be possible without taking the big hit in download speeds. Do any of you know a dependable source for info on optimizing the upload speed.

Incidentally I am still on DOCSIS 2. Comcast says DOCSIS 3 will only become available where I am some time next year.

Thanks
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Just upping your tcp window size should give you the most you can get in both directions. speed test sites aren't very accurate, BTW.
 

JackMDS

Elite Member
Super Moderator
Oct 25, 1999
29,563
432
126
20% Wow almost as important as the discovery of the Penicillin. ;)

In normal surfing the upload is meaningless it come into place only if you run a server or something similar.

And even then what it means is any thing that takes upstream 10 sec. would take 8 sec.