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Share ratio not working properly at all.

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Fool010:

--- Quote from: MetaKite on March 18, 2013, 10:01:42 PM ---However, now it's much much worse.  Currently seeding Legend of the Galactic Heroes torrent that's 29.8GB large. As I downloaded it, I watched my share ratio shrink from 8.300 to 7.760 or so.  I have since uploaded 16GB of that file and been seeding/uploading more GB via other torrent files and am now only at 7.844?

--- End quote ---

You're aware that in order to get your ratio back to it's original value (8.3), you have to seed back anything you leech 8.3 times, right ?

Which means nearly 250 GB for a 30 GB torrent. The higher your ratio gets, the more you have to seed back when you download.

Krudda:
Now that I'm on a laptop instead of a mobile phone, I will explain better.

--- Quote from: OP ---However, now it's much much worse.  Currently seeding Legend of the Galactic Heroes torrent that's 29.8GB large. As I downloaded it, I watched my share ratio shrink from 8.300 to 7.760 or so.  I have since uploaded 16GB of that file and been seeding/uploading more GB via other torrent files and am now only at 7.844?
--- End quote ---

Torrent in question: http://bakabt.me/161010-legend-of-the-galactic-heroes-ginga-eiyuu-densetsu-dvd-ca.html

You downloaded 29.88GB, thus with a ratio of 8.300 you would have to upload 248GB (roughly) in order to keep your overall ratio at 8.3
Since you uploaded 16GB, that means your ratio would have been 0.535 for that particular torrent. What you are doing is confusing this 0.535 with your overall/total ratio which it is not, thus you cannot simply add 0.535 to 7.760 (8.295) as this is not how it works.

So to make this simpler, lets round everything off to the nearest whole number as we don't need exact figures just approximates (within a few GB). Upload (UL) stays the same (I assume you already did), Download (DL) becomes 30 and Ratio stays at 8.3

To understand what you need to upload to keep 8.3 ratio, you simply times DL amount by ratio (8.3). So lets see the math to this: DL*8.3 = 30*8.3 = 249
So as you can see, a ratio of 8.3 requires you to upload (approximately) 249GB on this single torrent.
If you upload 30GB you have kept a 1 ratio which means you need to divide 249 by 8.3 like so: 249/8.3 = 30 thus a 1 ratio.

To figure out what this means for your ratio, take needed upload amount, divide by DL size and you get 249/30=8.3 then divide that by UL (16) = 0.518 then again, divide by 8.3 once more to get your final total of 0.0625 which you can now add to 7.760 to get your new ratio after you uploaded 16GB and you should have 7.8825. Oh hello, isn't this number close to what you said you were at? Its different because I rounded the numbers off, but if you use the correct figures, you would get the correct result.
--- Quote from: MetaKite ---am now only at 7.844
--- End quote ---

In summary, the mathematical formula I just explained is as such:
Legend: DL=DownLoad, R=Ratio, UL=UpLoad, *=Times, /=Divide

((((DL*R)/DL)/UL)/R)+Ratio After Download (Obviously before you DL the torrent) = your new ratio

Edit: If you do not understand how to equate that with all the () in it, I'll break it down:
Legend: Same as above but also S=Sum (of equation)

DL*R=S1
S1/DL=S2
S2/UL=S3
S3/R=S4
S4+Ratio After Downloading = your new ratio

Hope this helps.

Bozobub:
Oh, my, very well explained, Krudda.  Kudos!

buchno:
Maybe ratio theory should be added to the wiki to help people having problems understanding it.

MetaKite:
Thank you, Krudda, but you (and everyone else it seems) completely ignored what what I was saying in the last couple posts. The ratio was still plummeting no matter how much was seeding. Even if that one torrent was seeded 8.3X it's download, it just wasn't registering. The ratio just kept dropping and only for that specific torrent. It became clear to me when I suspended the other torrents for a night and a day to isolate it, did it prove to drop no matter the amount seeding wouldn't change the ratio consistently dropping.

I mentioned it in my post dated March 22, 2013, 03:04:49 PM. As I said, it didn't matter if it was going to seed 10X, it just kept dropping. I didn't notice that the first when I made this thread but came to figure it out as I started working through different solutions and then stopping all other traffic I was seeding. I guess I wasn't clear after your first reply, Krudda. What I'm fretting over is if this would repeat with that 40GB torrent or it was a 1 time glitch with that specific 28.9GB torrent. I do appreciate the math behind it you posted. (It helps make clear the process for why seeding a not downloaded torrent can show ratios in the hundreds when you haven't seeded all that much).


--- Quote from: Krudda on March 23, 2013, 12:24:34 AM ---Nicely explained ratio math.
Hope this helps.

--- End quote ---

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