[BitTorrent] More aggressive tit-for-tat

Gregorio Roper gregorio at gmx.li
Fri Sep 10 16:04:47 EDT 2004


buzmeggroups wrote:

> Are there any particular parameters I can invoke to be much more
> aggressive about not playing with pure leechers?
> 
> I would like to choke off pure leechers at about a factor of 5-10 (ie.
> if they give me 1KB/s, I will give them up to 5-10KB/s)
> 
> Normally, I'm pretty easygoing about heavy leeching off of my
> colocated server.  If I allow lots of people to connect, each one
> normally uploads at least 10KB/s and very shortly the download is
> humming at 200-300KB/s while my upload is moving at 1MB/s or better.
> 
> Every now and then, however, I wind up in a swarm which will suck my
> colocated server dry but not return anything (upload speeds of
> 500KB/s+ with a download of less than 10KB/s total with most of the
> swarm around 70%),  When that happens, I would like to get very
> aggressive and put a bandwidth cap on those who suck down more than
> 5KB/s and are below a factor of 10 return.
> 
> Any suggestions?  Suggestions for places to go looking in the python
> code are welcome, too.
> 
> Thanks,
> -a

I don't like enforcing unflexible ratios, - what you suggest means effectively 
capping your total upload stream when your download stream is low and it really 
doesn't help anyone - in MY opinion at least.

mfg
gregorio



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