Speed up your torrents
Help! BitTorrent is slow… This is probably one of the most frequently asked
questions I get about BitTorrent. Unfortunately there’s not some kind of magic
trick that makes your torrents go through the roof. But you could take some
simple steps to optimize your speeds.
1. Cap your upload (most important)
Limit your upload speed to approximately 80 percent of your maximum upload
rate. You can check your upload speed over here (never
trust your isp). Once you know your maximum upload speed, change the max upload
(to 80%) speed in your torrent client’s preferences.
Don’t get me wrong, everyone should share as much as possible, but if your
upload rate reached it’s max, your download rate suffers significantly.
2. Hack the max TCP connections
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 use bitcomet tcp/ippatch, it
allows you to set the maximum allowed connections to any number you want. Any
number between 50 and 1000 is ok
3. Check seeds and peers
A simple tip, but o so important. Always look for torrents with the best
seed/peer ratio. The more seeds (compared to peers) the better (in general). So
50 seeds and 50 peers is better than 500 seeds and 1000 peers. So, be
4. Change the default port.
By default, BitTorrent uses a port 6881-6999. BitTorrent accounts for a lot
of the total internet traffic (1/3), so isp’s like to limit the connection
offered on the these ports. So, you should change these to another range. Good
clients allow you to do this, just choose anything you like. If you’re behind a
router, make sure you have the ports forwarded or UPnP enabled.
5. Disable Windows Firewall
It sucks. Windows Firewall hates P2P and often leads a life of it’s own. So
disable it and get yourself a decent firewall, Kerio or Zone Alarm for
Last but not least… Buy a faster connection…