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Bit Torrent Optimization
06-06-2010, 03:30 PM
Post: #1
Bit Torrent Optimization
Bit Torrent Optimization
Heres a few tips and tricks that will help you achieve faster download speeds while using Bit Torrent.
Note: This guide is only recommended for people who are already familier with their current Bit Torrent client;
It will explain what can be done and why it is worth doing, not necessarily how to carry it out step by step.

1: Internet Connection Speed
Firstly you're going to need to know how fast your connection to the internet is. If you dont know this, there are many sites that will tell you the speed, by letting it run a quick speed test on your line.
http://2wire.com is a good one to use. It will give you a reading in KB/S (Kilobits per second)
You can expect this to range from 256kb/s to 20000kb/s if your on an ADSL (Broadband) line.
So, for example if it was reading 4396kb/s; your connection would most probably be set at around 4 megabits per second.
Youll need to know this information to configure your Bit Torrent client later on.

2: Upload capping
Although it would seem logical to allow an unlimited upload speed on your Bit Torrent Client, however sometimes limiting the speed will actually increase your download speeds.
Let me explain...
For every packet of data you download from Peer A, you must acknowledge that you have recieved it before you can recieve the next packet. Bit Torrent clients do this automatically by sending a small upload (acknowlegment) packet back to peer A.
Now, if all of your bandwidth is taken up by uploading data; the acknowledgment packet is not going to be transferred efficiently.
Therefore causing slow(er) download speeds.
An ideal speed to cap your upload limit at is around 80% of your total connection speed, this gives plenty of bandwidth for the acknowlegment packets to be sent.
Understand?

3: The Service Pack 2 limiter
Believe it or not, XP service pack 2 limits the TCP connections to your computer.

Don't believe it. The supposed benefits of the "TCP/IP patch" aka the "Event ID4226 patch" are a widely circulated myth. The limit imposed by Microsoft is actually on the rate at which new connections can be made, not on the no. of connections. Left as-is the worst it will do is extend by a matter of seconds the time it takes you to establish connections when connecting to a large swarm.

/Mod

4: Router Ports
This can be the main reason for why you are recieving slow torrent connections.
Many people dont realize that opening a port on your router is so important.
If you want to open a port, the first thing I would recommend doing is downloading uTorrent.
This client has a very easy process that allows you to set a port for Bit Torrent connections, and to check if that port is open.
Once you have selected a port (this can actually be chosen at random), use this link below:

http://www.utorrent.com/testport.php?port=XXXXX

and replace the 5 X's with your port number.
The result screen will tell you if your port is open or not.
If not, the next website to go to is: Port Forward
I wont go into this anymore, as Port Forward has extensive tutorials on the matter.


5: Windows Firewall
This, again, is another Windows XP feature that limits internet traffic. Alot.
By turning it off, and using a Firewall like Sygate Personal Firewall that is far more suited to handling Torrent data, it will allow overall faster speeds.
If you really feel attached to the Windows Firewall, there are ways (although difficult) that allow you to open up single ports, one at a time. However it is very time consuming.
Tutorials are avialable elsewhere for that (Google for example)

Finally, the most important one;
PICK A HEALTHY TORRENT!
Seed/Leecher ratios tell you valuble information about the torrent in question.
I am hoping you know what a Seeder and a Leecher is.
If not, read this

I hope that has helped anyone who needed it.
If anyone else has any useful or cool tips; Post away!
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