[p2p-hackers] BT and localisation

[Greg Bildson]

The question here would be, is that effect strong enough to override other
effects due to transfer capacity and general random association.  Would the
preferencing be significant.

Thanks
-greg

> -----Original Message-----
> From: p2p-hackers-bounces at zgp.org [mailto:p2p-hackers-bounces at zgp.org]On
> Behalf Of Serguei Osokine
> Sent: Thursday, March 10, 2005 11:56 AM
> To: .; Peer-to-peer development.
> Subject: RE: [p2p-hackers] BT and localisation
>
>
> On Thursday, March 10, 2005 . wrote:
> > ...am I any more likely to get data from other peers in the US
> > than peers in, say, Japan or China?
>
> 	Yes. Since TCP sending rate is RTT-dependent and in BT you
> have multiple concurrent TCP streams, you'll tend to send more
> to the closest hosts and to receive more from them. So the peer
> selection algorithms on both ends will make sure that these hosts
> hosts are the preferred ones, since they will tend to give better
> transfer rates.
>
> 	Best wishes -
> 	S.Osokine.
> 	10 Mar 2005.
>
>
> -----Original Message-----
> From: p2p-hackers-bounces at zgp.org [mailto:p2p-hackers-bounces at zgp.org]On
> Behalf Of .
> Sent: Thursday, March 10, 2005 3:17 AM
> To: p2p-hackers at zgp.org
> Subject: [p2p-hackers] BT and localisation
>
>
> Is there any localisation in the peers connected to within a swarm...?
> For instance, if I'm in the US and there are peers spread around the
> world, am I any more likely to get data from other peers in the US
> than peers in, say, Japan or China?
>
> thanks.
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