I found an interesting issue while testing download speeds from different computers with and without proxy. I did use the same server and file on it and the same 20/4 Mbit Internet connection.
From Windows 2000/XP I can get up to 497kb/s, while from Linux (CentOS) it goes to 1,4Mb/s. What's more interesting while downloading from Windows 2000 using proxy server on the same Linux computer I did get over 1MB/s as well.
The best results were with WGET, but the similar differences were visible in Firefox, as well.
There has to be something slowing down HTTP downloads in windows 2000/XP, since it is possible to get around it by using proxy server working on Linux computer. Using a proxy on Windows XP did not increase the download speed and the result was almost the same as direct download. I used 3proxy, as it is available on both Windows and Linux systems.
Edited by Sfor, 26 June 2014 - 04:31 AM.