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On Sun, 17 Jan 2010 18:18:53 +0000, Orchid XP v8 wrote:
> Sure. I just feel like a bit of an arsehole downloading all this stuff
> and then not giving anything back, that's all. :-}
Just leave it run; I usually let my torrents run until either there are 0
peers for an extended period of time or until I hit a share ratio of
1:1. Sometimes I'll let them go longer, but I give priority to those
with a share ratio below 1:1.
Jim
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Orchid XP v8 wrote:
> - I have ADSL. That stands for ASYMMETRIC Digital Subscriber Line. In
> laymen's terms, by download rate is about 5x faster than my upload rate.
> I can download at the speedy rate of around 310 KB/sec, but I can only
> *upload* at a maximum of about 46 KB/sec.
>
> - This means that it is physically impossible for me to upload
> particularly fast. That should hypothetically result in low download
> speeds.
The download speed isn't tied to the upload speed like that. They are
independent.
Besides, the system works well for asymmetric connections like yours.
If a typical ratio of upload to download speed is 10x, then with 10
seeds you can top out your download speed, despite each seeder's upload
speed being low.
> - But wait! This torrent has 450 seeders and 3 downloaders. And I
> sometimes see 200 KB/sec from a single seeder, so... why THE HELL is any
> peer going to download from me at a piffling 40 KB/sec when there are
> peers out there at least 5x faster?
The file is broken up into blocks, you know, rather than transferred
sequentially.
So, the client will download one block from you, while downloading other
blocks from other seeds. You'll still be helping.
...Chambers
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>> - But wait! This torrent has 450 seeders and 3 downloaders. And I
>> sometimes see 200 KB/sec from a single seeder, so... why THE HELL is
>> any peer going to download from me at a piffling 40 KB/sec when there
>> are peers out there at least 5x faster?
>
> The file is broken up into blocks, you know, rather than transferred
> sequentially.
>
> So, the client will download one block from you, while downloading other
> blocks from other seeds. You'll still be helping.
Yes, but the BT algorithm is to try to select the peers which give you
the fastest download rate - to reduce leaching, but mainly so you
download from whichever peers are topologically "nearest" to you.
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Nicolas Alvarez wrote:
> I have a 900MB torrent up to share ratio 12.
>
> Why not?
Becuase it might take several human lifetimes to reach that ratio?
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Jim Henderson wrote:
> Just leave it run; I usually let my torrents run until either there are 0
> peers for an extended period of time or until I hit a share ratio of
> 1:1. Sometimes I'll let them go longer, but I give priority to those
> with a share ratio below 1:1.
Yeah, that's pretty much what I'm doing. It's just that with such a low
upload speed, almost no peers want to talk to you, so it takes an insane
amount of time to reach parity.
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Orchid XP v8 wrote:
> Nicolas Alvarez wrote:
>
>> I have a 900MB torrent up to share ratio 12.
>>
>> Why not?
>
> Becuase it might take several human lifetimes to reach that ratio?
I have been seeding for 11 days.
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>>> I have a 900MB torrent up to share ratio 12.
>>>
>>> Why not?
>> Becuase it might take several human lifetimes to reach that ratio?
>
> I have been seeding for 11 days.
So I'm guessing you have a much faster connection than me?
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Orchid XP v8 <voi### [at] dev null> wrote:
> >>> I have a 900MB torrent up to share ratio 12.
> >>>
> >>> Why not?
> >> Becuase it might take several human lifetimes to reach that ratio?
> >
> > I have been seeding for 11 days.
>
> So I'm guessing you have a much faster connection than me?
I have about your same settings. The largest seeding I've done was about 4.5 or
something.
It doesn't take ages at all: you don't take into account in that formula of
yours the fact that people did not all begin seeding and downloading at the same
time. By the time you begin download, chances are you'll find a few people at
100% and the rest at varying degrees of completion.
Still, I've been able to download at about 300 somethings and seed at about 90
at the same time. It depends on the ratios though.
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Orchid XP v8 wrote:
>>>> I have a 900MB torrent up to share ratio 12.
>>>>
>>>> Why not?
>>> Becuase it might take several human lifetimes to reach that ratio?
>>
>> I have been seeding for 11 days.
>
> So I'm guessing you have a much faster connection than me?
3mbit down, 256kbit up.
I set a 20KB/s limit on BitTorrent upload so it doesn't cause problems for
other Internet activity. Currently it seems to be uploading at a constant
18-20KB/s.
Bumping limit up to 25KB/s... Aaaand it's still uploading at pretty constant
speed, averaging 24.96KB/s.
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Orchid XP v8 wrote:
> - Downloaders try to download from the fastest uploader [from their
> location on the network].
No, downloaders download from multiple uploaders. Not from "the" fastest.
And I don't think torrent clients care about "location on the network" yet.
> - But wait! This torrent has 450 seeders and 3 downloaders. And I
> sometimes see 200 KB/sec from a single seeder, so... why THE HELL is any
> peer going to download from me at a piffling 40 KB/sec when there are
> peers out there at least 5x faster?
Because downloading from 10 seeders who have 40KB/s will get them the file
fast. The "5x faster" peer isn't fast at all if there are already 30 users
downloading from it!
I have the fastest plan my ISP has, and I seed at 20KB/s. Like, constantly;
not random peaks. And I seem to get pretty good download speed.
I have used BitTorrent from a 128kbit upstream connection with little
trouble.
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