Good settings
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Downloading as fast as your connection allows requires good settings based on the upload speed of your Internet connection. First, fix your NAT problem if you never see and do not Force Start your torrents. Running another P2P program while Azureus is running will stall your downloads badly.
The following suggestions should work well most of the time. Downloads of individual torrents also depend on other factors (see Good Torrents).
Contents |
Good settings based upload speed
Note: Find your upload speed at next chapter.
If the chart below does not list your upload speed, you might use a calculator page or get new settings using AzBot.
If you are running several file-sharing programs on the same internet connection -- on one or more PCs -- you need to split the upload bandwidth and calculate queue settings accordingly. When in doubt, ask in the IRC channel.
Attention: You need to change the User Mode (Tools/Options/Mode) at least to "Intermediate" to be able to change all settings!
| Option \ ISP | misc ISPs | |||||
|---|---|---|---|---|---|---|
| Upload in kbit/s | 128 | 192 | 256 | 384 | 512 | 768 |
| Tools -> Options ->Transfer | ||||||
| kB/s global max. upload speed | 12 | 19 | 25 | 38 | 51 | 76 |
| kB/s global max. download speed | 0 | 0 | 0 | 0 | 0 | 0 |
| Default max. upload slots per torrent | 3 | 2 | 3 | 4 | 5 | 6 |
| Maximum number of connections per torrent | 99 | 70 | 80 | 100 | 118 | 152 |
| Maximum number of connections globally | 99 | 117 | 134 | 167 | 197 | 253 |
| Tools -> Options -> Queue | ||||||
| max. simultaneous downloads | 1 | 2 | 2 | 2 | 2 | 2 |
| max. active torrents | 1 | 2 | 2 | 2 | 2 | 2 |
You now need to click the Save button to preserve your new settings.
How to determine your upload speed
To configure Azureus for optimum performance, you need to know the upstream capacity of your Internet connection, which can be obtained from your Internet Service Provider (ISP). Advertisements may include numbers like "1024/256 Kbps"; this represents the maximum bandwidth available to you. It is the number of kilobits per second (kbit/s or Kbps) you can download/upload with your connection. You may have seen speed measured in kiloBytes per second as commonly reported by browsers. There is a difference between the two measures. In all likelihood, you upload slower than you download.
You may visit http://www.dslreports.com/stest or http://www.adslguide.org.uk/tools/speedtest.asp for online speed tests. Stop ALL Internet activity on your machine (including torrents) for a few minutes before running a test. Repeat it twice to reduce number anomalies. If it's really close to one of the listed upload speeds, use the chart. Otherwise, use AzBot or a calculator page.
You can always set Config > Transfer > kB/s global max. upload speed to 0 -- meaning unlimited -- and observe. In any case, do not let Azureus (or any other program for that matter) take up the whole upload bandwidth. There needs to be room for overhead such as acknowledgement signals (ACKs) and resend requests. Downloads will suffer if these signals cannot be sent. Set your upload limit to about 80% of the maximum possible.
How to use AzBot for good settings
If your upload speed is not very close to any listed in the chart, you can use Azureus to join the #Azureus-support IRC channel. There you should find AzBot.
Firstly, you need to check that you're in the right channel; read the text that's been displayed once you've opened the plugin, you should see something like this:
[XX:XX:XX] Nickname has joined #Azureus-support
If for some reason you're not in #Azureus-support, you just need to type:
/join #azureus-support
then:
/msg AzBot upspeed ### <- your upload speed in kilobits per second (not kiloBytes)from the above bandwidth tests.
Note: Do NOT leave out the "/" as you type.
Other things to know
Read about Good Torrents (Bad torrents may be fast at first, but you won't finish them). You may want to compare your download speed with the Average Swarm Speed; you may be doing better than you think.
Read the Azureus FAQ