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Re: BitTorrent not slow, but users are clueless

On Tue, 21 Mar 2006, Tony Lill wrote:

alan <alan clueserver org> writes:

On Tue, 21 Mar 2006, Florin Andrei wrote:

On Tue, 2006-03-21 at 13:31 -0500, sean wrote:

The biggest problem is usually that your upstream speed is limited which
will severely reduce your download speed (1).  One common cause is having
local firewall (iptables) rules active.  Another is having a router
(linksys etc.) which hasn't been configured to allow bittorrent
connections (2).

I would venture to say that a combination of these factors is
responsible for most cases of poor performance, even more so that ISP
traffic shaping.

There's plenty of clueless people out there who are behind a broadband
router that's doing NAT, the router has no protocol helper for
BitTorrent and does not forward the BitTorrent ports to the correct
machine behind it - as a result of course the download speed is very
low, yet people complain about BitTorrent per se. lol :-)

Saying "BitTorrent sucks" has a pretty high probability of being
equivalent to "my computer/networking skills suck".

I have been using BitTorrent quite a bit and I have seen pretty iffy
performance downloading FC5.

I am using the correct ports, my firewall handles it fine, and my ISP
does not block.  Other downloads have not been a problem since the
last router upgrade.

Something else is going on here.

If your client supports it, try limiting your uplink speed. For a 1Mb
ADSL, about 18kB/s is about right. That will let me get 110kB/s
download. Without a specific limit, the uplink speed doubles, you drop
so many packets that the download speed is cut in half.

I have already done that. I have gotten better performance in the past with the same settings and the same client. Might be the new version of the client.

"Remember there is a big difference between kneeling down and bending over." - Frank Zappa

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