BitComet Preferences - Connection, IP Rules, Disk Cache

The BitTorrent Preferences Panel - Connection

The things I have mentioned in the previous page about DHT apply here to, in my opinion it is best to leave the Enable DHT network option unchecked.

The Maximum Connections per task specifies the number of computers your client can connect to, for one torrent file. If you have a high speed connection set is as high as you like, otherwise is should not exceed 200. Some operating systems are sensitive about the number of connections, if you experience problems, set the default option or even lower the value.

The BitTorrent Preferences Panel - IP Rules

The Enable reporting LAN IP to Tracker is very useful if you are inside a local network, it provides the tracker with one method of differentiating you from the rest of the people in your network. Nowadays, a better method is used, passkeys, but this option can be left checked, in case the tracker does not support passkeys.

If you check the Enable IP filter file : ipfilter.dat (compatible with eMule) option, BitComet will look in its folder for a ipfilter.dat file, which contains rules that prevent or allow access of other computers to your computer. If, for example, you have a very poor connection outside your country and you prefer to only allow people from your country to receive files from you, you can add rules in that file that will block those people. The rules are beyond the scope of this guide, you will have to read about this somewhere else (the eMule documentation is a good start).

The BitTorrent Preferences Panel - Disk Cache

BitComet uses a disk cache to temporarily keep frequently used data and to reduce the number of disk accesses.

Due to the fact that when downloading a torrent file you are usually downloading and uploading from lots of people at a time, you would be often faced with the problem of seeing the drive spinning and moving its heads all over the surface trying to write all the data it receives or trying to read what should be sent to other people.

The disk cache stores a lot of downloaded data and sends it to the drive in small bursts, reducing the disk access. It also loads in advance parts of files that need to be sent to others. It should be set as high as possible but you should not exceed 300 MB. Also, note that this amount is taken out of you computer memory (RAM), if you don't have at least 512 MB of RAM, the recommended setting would be between 50 and 150 MB.

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