Speed up Bitcomet and uTorrent
Both
Bitcomet and uTorrent (and probably other clients) limit half-open tcp
connections by default. This means even if you hack the max half-open
tcp connections in windows xp, your speed will still be limited. So
this is what you need to do:
First of all, read this post that gives you some tips and tricks how to speed up your torrents
1. Hack the max half-open TCP connections
Update: this tweak is NOT recommended if you use uTorrent >1.7, it may lead to
unstable behavior.
If you're on XP sp2, your TCP connections are limited to a maximum
of 10. This seriously hurts your downloading speed because it wont let
you connect to a high amount of ip numbers. It is supposed to slow down
viruses because their spreading strategy is to connect to a high amount
of ip numbers, but it also cripples your torrent downloads.
A nice way to fix this is to download this patch,
it allows you to set the maximum allowed connections to any number you
want. Any number between 50 and 100 is ok (more is NOT always better).
2. Configure your torrent client to allow 50-100 max half-open TCP connections
uTorrent: Options > Preferences > Advanced options > net.max_halfopen
Bitcomet: Options > Preferences > Connection > max half-open TCP
Now you're ready to go...
A third point of interest is that some "windows updates" revert your
tweaked tcp connections back to 10. So it's wise to check this every
now and then. You can check this by going to (in windows xp) Start >
Control Panel > Administrative Tools > Event Viewer > System...
Look for event 4226 (sort by event).
If there are a lot of daily occurrences it's likely that the max
amount of half-open tcp connections was set back to 10. Or you're
infected with some nasty spyware...
If you're done, you might want to try the torrent settings optimizer to check if all setting are correct
